Lower case "rsc stream" debug info - #34921

Merged
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream
Oct 20, 2025
Merged

Lower case "rsc stream" debug info#34921
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream

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@sebmarkbage

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This is an aesthetic thing. Most simple I/O entries are things like "script", "stylesheet", "fetch" etc. which are all a single word and lower case. The "RSC stream" name sticks out and draws unnecessary attention to itself where as it's really the least interesting to look at.

I don't love the name because I'm not sure how to explain it. It's really mainly the byte size of the payload itself without considering things like server awaits things which will have their own cause. So I'm trying to communicate the download size of the stream of downloading the .rsc file or the "rsc stream".

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 20, 2025
foundIOEntries.add(ioInfo);
if (ioInfo.name === 'RSC stream' && ioInfo.value != null) {
if (
(ioInfo.name === 'RSC stream' || ioInfo.name === 'rsc stream') &&

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Preserves older reacts.

@react-sizebot

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Comparing: f6a4882...01ebeae

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.68 kB6.68 kB=1.83 kB1.82 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=605.41 kB605.41 kB=107.22 kB107.21 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.69 kB6.69 kB=1.83 kB1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=664.38 kB664.38 kB=117.09 kB117.09 kB
facebook-www/ReactDOM-prod.classic.js=688.25 kB688.25 kB=121.13 kB121.13 kB
facebook-www/ReactDOM-prod.modern.js=678.67 kB678.67 kB=119.49 kB119.48 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against 01ebeae

@sebmarkbage
sebmarkbage merged commit 21272a6 into react:mainOct 20, 2025
249 checks passed
@sophiebits

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props from server?

@hoxyqhoxyq mentioned this pull request Oct 20, 2025
hoxyq added a commit that referenced this pull request Oct 20, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[#34925](#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[#34915](#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[#34913](#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[#34921](#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[#34922](#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[#34918](#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[#34916](#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34907](#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[#34898](#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[#34893](#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34892](#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[#34885](#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[#34881](#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[#34894](#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[#34880](#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[#34876](#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[#34878](#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[#34873](#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[#34870](#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[#34869](#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[#34867](#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [#34860](#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34861](#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[#34859](#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[#34854](#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[#34853](#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[#34852](#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[#34851](#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[#34850](#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[#34828](#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[#34756](#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34830](#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[#34829](#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[#34827](#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[#34824](#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[#34823](#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[#34796](#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[#34792](#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[#34754](#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[#34712](#34712))
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
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3 participants

@sebmarkbage@react-sizebot@sophiebits
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Skip to content

Lower case "rsc stream" debug info - #34921

Merged
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream
Oct 20, 2025
Merged

Lower case "rsc stream" debug info#34921
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream

Conversation

@sebmarkbage

Copy link
Copy Markdown
Contributor

This is an aesthetic thing. Most simple I/O entries are things like "script", "stylesheet", "fetch" etc. which are all a single word and lower case. The "RSC stream" name sticks out and draws unnecessary attention to itself where as it's really the least interesting to look at.

I don't love the name because I'm not sure how to explain it. It's really mainly the byte size of the payload itself without considering things like server awaits things which will have their own cause. So I'm trying to communicate the download size of the stream of downloading the .rsc file or the "rsc stream".

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 20, 2025
foundIOEntries.add(ioInfo);
if (ioInfo.name === 'RSC stream' && ioInfo.value != null) {
if (
(ioInfo.name === 'RSC stream' || ioInfo.name === 'rsc stream') &&

Copy link
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Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Preserves older reacts.

@react-sizebot

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Copy Markdown

Comparing: f6a4882...01ebeae

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.68 kB6.68 kB=1.83 kB1.82 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=605.41 kB605.41 kB=107.22 kB107.21 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.69 kB6.69 kB=1.83 kB1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=664.38 kB664.38 kB=117.09 kB117.09 kB
facebook-www/ReactDOM-prod.classic.js=688.25 kB688.25 kB=121.13 kB121.13 kB
facebook-www/ReactDOM-prod.modern.js=678.67 kB678.67 kB=119.49 kB119.48 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against 01ebeae

@sebmarkbage
sebmarkbage merged commit 21272a6 into react:mainOct 20, 2025
249 checks passed
@sophiebits

Copy link
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Collaborator

props from server?

@hoxyqhoxyq mentioned this pull request Oct 20, 2025
hoxyq added a commit that referenced this pull request Oct 20, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[#34925](#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[#34915](#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[#34913](#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[#34921](#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[#34922](#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[#34918](#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[#34916](#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34907](#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[#34898](#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[#34893](#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34892](#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[#34885](#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[#34881](#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[#34894](#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[#34880](#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[#34876](#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[#34878](#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[#34873](#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[#34870](#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[#34869](#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[#34867](#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [#34860](#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34861](#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[#34859](#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[#34854](#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[#34853](#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[#34852](#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[#34851](#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[#34850](#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[#34828](#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[#34756](#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34830](#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[#34829](#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[#34827](#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[#34824](#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[#34823](#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[#34796](#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[#34792](#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[#34754](#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[#34712](#34712))
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
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@sebmarkbage@react-sizebot@sophiebits
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

Lower case "rsc stream" debug info - #34921

Merged
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream
Oct 20, 2025
Merged

Lower case "rsc stream" debug info#34921
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream

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@sebmarkbage

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This is an aesthetic thing. Most simple I/O entries are things like "script", "stylesheet", "fetch" etc. which are all a single word and lower case. The "RSC stream" name sticks out and draws unnecessary attention to itself where as it's really the least interesting to look at.

I don't love the name because I'm not sure how to explain it. It's really mainly the byte size of the payload itself without considering things like server awaits things which will have their own cause. So I'm trying to communicate the download size of the stream of downloading the .rsc file or the "rsc stream".

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 20, 2025
foundIOEntries.add(ioInfo);
if (ioInfo.name === 'RSC stream' && ioInfo.value != null) {
if (
(ioInfo.name === 'RSC stream' || ioInfo.name === 'rsc stream') &&

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Preserves older reacts.

@react-sizebot

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Comparing: f6a4882...01ebeae

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.68 kB6.68 kB=1.83 kB1.82 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=605.41 kB605.41 kB=107.22 kB107.21 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.69 kB6.69 kB=1.83 kB1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=664.38 kB664.38 kB=117.09 kB117.09 kB
facebook-www/ReactDOM-prod.classic.js=688.25 kB688.25 kB=121.13 kB121.13 kB
facebook-www/ReactDOM-prod.modern.js=678.67 kB678.67 kB=119.49 kB119.48 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against 01ebeae

@sebmarkbage
sebmarkbage merged commit 21272a6 into react:mainOct 20, 2025
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@sophiebits

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props from server?

@hoxyqhoxyq mentioned this pull request Oct 20, 2025
hoxyq added a commit that referenced this pull request Oct 20, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[#34925](#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[#34915](#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[#34913](#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[#34921](#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[#34922](#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[#34918](#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[#34916](#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34907](#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[#34898](#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[#34893](#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34892](#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[#34885](#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[#34881](#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[#34894](#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[#34880](#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[#34876](#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[#34878](#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[#34873](#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[#34870](#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[#34869](#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[#34867](#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [#34860](#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34861](#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[#34859](#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[#34854](#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[#34853](#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[#34852](#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[#34851](#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[#34850](#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[#34828](#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[#34756](#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34830](#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[#34829](#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[#34827](#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[#34824](#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[#34823](#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[#34796](#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[#34792](#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[#34754](#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[#34712](#34712))
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
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@sebmarkbage@react-sizebot@sophiebits
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

Lower case "rsc stream" debug info - #34921

Merged
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream
Oct 20, 2025
Merged

Lower case "rsc stream" debug info#34921
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream

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@sebmarkbage

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This is an aesthetic thing. Most simple I/O entries are things like "script", "stylesheet", "fetch" etc. which are all a single word and lower case. The "RSC stream" name sticks out and draws unnecessary attention to itself where as it's really the least interesting to look at.

I don't love the name because I'm not sure how to explain it. It's really mainly the byte size of the payload itself without considering things like server awaits things which will have their own cause. So I'm trying to communicate the download size of the stream of downloading the .rsc file or the "rsc stream".

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 20, 2025
foundIOEntries.add(ioInfo);
if (ioInfo.name === 'RSC stream' && ioInfo.value != null) {
if (
(ioInfo.name === 'RSC stream' || ioInfo.name === 'rsc stream') &&

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Preserves older reacts.

@react-sizebot

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Comparing: f6a4882...01ebeae

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.68 kB6.68 kB=1.83 kB1.82 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=605.41 kB605.41 kB=107.22 kB107.21 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.69 kB6.69 kB=1.83 kB1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=664.38 kB664.38 kB=117.09 kB117.09 kB
facebook-www/ReactDOM-prod.classic.js=688.25 kB688.25 kB=121.13 kB121.13 kB
facebook-www/ReactDOM-prod.modern.js=678.67 kB678.67 kB=119.49 kB119.48 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against 01ebeae

@sebmarkbage
sebmarkbage merged commit 21272a6 into react:mainOct 20, 2025
249 checks passed
@sophiebits

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props from server?

@hoxyqhoxyq mentioned this pull request Oct 20, 2025
hoxyq added a commit that referenced this pull request Oct 20, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[#34925](#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[#34915](#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[#34913](#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[#34921](#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[#34922](#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[#34918](#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[#34916](#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34907](#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[#34898](#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[#34893](#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34892](#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[#34885](#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[#34881](#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[#34894](#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[#34880](#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[#34876](#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[#34878](#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[#34873](#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[#34870](#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[#34869](#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[#34867](#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [#34860](#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34861](#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[#34859](#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[#34854](#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[#34853](#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[#34852](#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[#34851](#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[#34850](#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[#34828](#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[#34756](#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34830](#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[#34829](#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[#34827](#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[#34824](#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[#34823](#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[#34796](#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[#34792](#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[#34754](#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[#34712](#34712))
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
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@sebmarkbage@react-sizebot@sophiebits
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
Skip to content

Lower case "rsc stream" debug info - #34921

Merged
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream
Oct 20, 2025
Merged

Lower case "rsc stream" debug info#34921
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream

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@sebmarkbage

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This is an aesthetic thing. Most simple I/O entries are things like "script", "stylesheet", "fetch" etc. which are all a single word and lower case. The "RSC stream" name sticks out and draws unnecessary attention to itself where as it's really the least interesting to look at.

I don't love the name because I'm not sure how to explain it. It's really mainly the byte size of the payload itself without considering things like server awaits things which will have their own cause. So I'm trying to communicate the download size of the stream of downloading the .rsc file or the "rsc stream".

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 20, 2025
foundIOEntries.add(ioInfo);
if (ioInfo.name === 'RSC stream' && ioInfo.value != null) {
if (
(ioInfo.name === 'RSC stream' || ioInfo.name === 'rsc stream') &&

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Preserves older reacts.

@react-sizebot

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Comparing: f6a4882...01ebeae

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.68 kB6.68 kB=1.83 kB1.82 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=605.41 kB605.41 kB=107.22 kB107.21 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.69 kB6.69 kB=1.83 kB1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=664.38 kB664.38 kB=117.09 kB117.09 kB
facebook-www/ReactDOM-prod.classic.js=688.25 kB688.25 kB=121.13 kB121.13 kB
facebook-www/ReactDOM-prod.modern.js=678.67 kB678.67 kB=119.49 kB119.48 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against 01ebeae

@sebmarkbage
sebmarkbage merged commit 21272a6 into react:mainOct 20, 2025
249 checks passed
@sophiebits

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props from server?

@hoxyqhoxyq mentioned this pull request Oct 20, 2025
hoxyq added a commit that referenced this pull request Oct 20, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[#34925](#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[#34915](#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[#34913](#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[#34921](#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[#34922](#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[#34918](#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[#34916](#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34907](#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[#34898](#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[#34893](#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34892](#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[#34885](#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[#34881](#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[#34894](#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[#34880](#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[#34876](#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[#34878](#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[#34873](#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[#34870](#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[#34869](#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[#34867](#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [#34860](#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34861](#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[#34859](#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[#34854](#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[#34853](#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[#34852](#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[#34851](#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[#34850](#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[#34828](#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[#34756](#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34830](#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[#34829](#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[#34827](#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[#34824](#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[#34823](#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[#34796](#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[#34792](#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[#34754](#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[#34712](#34712))
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
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3 participants

@sebmarkbage@react-sizebot@sophiebits
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

Lower case "rsc stream" debug info - #34921

Merged
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream
Oct 20, 2025
Merged

Lower case "rsc stream" debug info#34921
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream

Conversation

@sebmarkbage

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This is an aesthetic thing. Most simple I/O entries are things like "script", "stylesheet", "fetch" etc. which are all a single word and lower case. The "RSC stream" name sticks out and draws unnecessary attention to itself where as it's really the least interesting to look at.

I don't love the name because I'm not sure how to explain it. It's really mainly the byte size of the payload itself without considering things like server awaits things which will have their own cause. So I'm trying to communicate the download size of the stream of downloading the .rsc file or the "rsc stream".

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 20, 2025
foundIOEntries.add(ioInfo);
if (ioInfo.name === 'RSC stream' && ioInfo.value != null) {
if (
(ioInfo.name === 'RSC stream' || ioInfo.name === 'rsc stream') &&

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Preserves older reacts.

@react-sizebot

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Copy Markdown

Comparing: f6a4882...01ebeae

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.68 kB6.68 kB=1.83 kB1.82 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=605.41 kB605.41 kB=107.22 kB107.21 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.69 kB6.69 kB=1.83 kB1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=664.38 kB664.38 kB=117.09 kB117.09 kB
facebook-www/ReactDOM-prod.classic.js=688.25 kB688.25 kB=121.13 kB121.13 kB
facebook-www/ReactDOM-prod.modern.js=678.67 kB678.67 kB=119.49 kB119.48 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against 01ebeae

@sebmarkbage
sebmarkbage merged commit 21272a6 into react:mainOct 20, 2025
249 checks passed
@sophiebits

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props from server?

@hoxyqhoxyq mentioned this pull request Oct 20, 2025
hoxyq added a commit that referenced this pull request Oct 20, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[#34925](#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[#34915](#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[#34913](#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[#34921](#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[#34922](#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[#34918](#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[#34916](#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34907](#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[#34898](#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[#34893](#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34892](#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[#34885](#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[#34881](#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[#34894](#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[#34880](#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[#34876](#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[#34878](#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[#34873](#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[#34870](#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[#34869](#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[#34867](#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [#34860](#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34861](#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[#34859](#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[#34854](#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[#34853](#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[#34852](#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[#34851](#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[#34850](#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[#34828](#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[#34756](#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34830](#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[#34829](#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[#34827](#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[#34824](#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[#34823](#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[#34796](#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[#34792](#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[#34754](#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[#34712](#34712))
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

CLA SignedReact Core TeamOpened by a member of the React Core Team

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants

@sebmarkbage@react-sizebot@sophiebits
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

Lower case "rsc stream" debug info - #34921

Merged
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream
Oct 20, 2025
Merged

Lower case "rsc stream" debug info#34921
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream

Conversation

@sebmarkbage

Copy link
Copy Markdown
Contributor

This is an aesthetic thing. Most simple I/O entries are things like "script", "stylesheet", "fetch" etc. which are all a single word and lower case. The "RSC stream" name sticks out and draws unnecessary attention to itself where as it's really the least interesting to look at.

I don't love the name because I'm not sure how to explain it. It's really mainly the byte size of the payload itself without considering things like server awaits things which will have their own cause. So I'm trying to communicate the download size of the stream of downloading the .rsc file or the "rsc stream".

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 20, 2025
foundIOEntries.add(ioInfo);
if (ioInfo.name === 'RSC stream' && ioInfo.value != null) {
if (
(ioInfo.name === 'RSC stream' || ioInfo.name === 'rsc stream') &&

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Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Preserves older reacts.

@react-sizebot

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Copy Markdown

Comparing: f6a4882...01ebeae

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.68 kB6.68 kB=1.83 kB1.82 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=605.41 kB605.41 kB=107.22 kB107.21 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.69 kB6.69 kB=1.83 kB1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=664.38 kB664.38 kB=117.09 kB117.09 kB
facebook-www/ReactDOM-prod.classic.js=688.25 kB688.25 kB=121.13 kB121.13 kB
facebook-www/ReactDOM-prod.modern.js=678.67 kB678.67 kB=119.49 kB119.48 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against 01ebeae

@sebmarkbage
sebmarkbage merged commit 21272a6 into react:mainOct 20, 2025
249 checks passed
@sophiebits

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props from server?

@hoxyqhoxyq mentioned this pull request Oct 20, 2025
hoxyq added a commit that referenced this pull request Oct 20, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[#34925](#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[#34915](#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[#34913](#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[#34921](#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[#34922](#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[#34918](#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[#34916](#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34907](#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[#34898](#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[#34893](#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34892](#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[#34885](#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[#34881](#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[#34894](#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[#34880](#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[#34876](#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[#34878](#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[#34873](#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[#34870](#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[#34869](#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[#34867](#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [#34860](#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34861](#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[#34859](#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[#34854](#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[#34853](#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[#34852](#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[#34851](#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[#34850](#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[#34828](#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[#34756](#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34830](#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[#34829](#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[#34827](#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[#34824](#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[#34823](#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[#34796](#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[#34792](#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[#34754](#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[#34712](#34712))
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
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@sebmarkbage@react-sizebot@sophiebits
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
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Lower case "rsc stream" debug info - #34921

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sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream
Oct 20, 2025
Merged

Lower case "rsc stream" debug info#34921
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:rscstream

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@sebmarkbage

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This is an aesthetic thing. Most simple I/O entries are things like "script", "stylesheet", "fetch" etc. which are all a single word and lower case. The "RSC stream" name sticks out and draws unnecessary attention to itself where as it's really the least interesting to look at.

I don't love the name because I'm not sure how to explain it. It's really mainly the byte size of the payload itself without considering things like server awaits things which will have their own cause. So I'm trying to communicate the download size of the stream of downloading the .rsc file or the "rsc stream".

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 20, 2025
foundIOEntries.add(ioInfo);
if (ioInfo.name === 'RSC stream' && ioInfo.value != null) {
if (
(ioInfo.name === 'RSC stream' || ioInfo.name === 'rsc stream') &&

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Preserves older reacts.

@react-sizebot

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Comparing: f6a4882...01ebeae

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.68 kB6.68 kB=1.83 kB1.82 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=605.41 kB605.41 kB=107.22 kB107.21 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.69 kB6.69 kB=1.83 kB1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=664.38 kB664.38 kB=117.09 kB117.09 kB
facebook-www/ReactDOM-prod.classic.js=688.25 kB688.25 kB=121.13 kB121.13 kB
facebook-www/ReactDOM-prod.modern.js=678.67 kB678.67 kB=119.49 kB119.48 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against 01ebeae

@sebmarkbage
sebmarkbage merged commit 21272a6 into react:mainOct 20, 2025
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props from server?

@hoxyqhoxyq mentioned this pull request Oct 20, 2025
hoxyq added a commit that referenced this pull request Oct 20, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[#34925](#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[#34915](#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[#34913](#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[#34921](#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[#34922](#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[#34918](#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[#34916](#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34907](#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[#34898](#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[#34893](#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34892](#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[#34885](#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[#34881](#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[#34894](#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[#34880](#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[#34876](#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[#34878](#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[#34873](#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[#34870](#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[#34869](#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[#34867](#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [#34860](#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34861](#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[#34859](#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[#34854](#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[#34853](#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[#34852](#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[#34851](#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[#34850](#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[#34828](#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[#34756](#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34830](#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[#34829](#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[#34827](#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[#34824](#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[#34823](#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[#34796](#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[#34792](#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[#34754](#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[#34712](#34712))
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:
* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[react#34925](react#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[react#34915](react#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[react#34913](react#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34921](react#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34922](react#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34918](react#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[react#34916](react#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34907](react#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[react#34898](react#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34893](react#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34892](react#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34885](react#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34881](react#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34894](react#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34880](react#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34876](react#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34878](react#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34873](react#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34870](react#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34869](react#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34867](react#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [react#34860](react#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34861](react#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34859](react#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34854](react#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34853](react#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34852](react#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34851](react#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34850](react#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34828](react#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[react#34756](react#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34830](react#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34829](react#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34827](react#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[react#34824](react#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[react#34823](react#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[react#34796](react#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[react#34792](react#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[react#34754](react#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[react#34712](react#34712))
DiffTrain build for [3cde211](react@3cde211)
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