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Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 #10446

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Raise the minimum Roslyn version for MSTest.Analyzers to 4.14#10446
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area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
Milestone
MSTest 5.0 / MTP 3.0

Description

@Evangelink
Amaury Levé (Evangelink)
opened on Aug 5, 2026

Raise MicrosoftCodeAnalysisVersion from 3.11.0 to 4.14.0 for MSTest.Analyzers and its code fixes during the next breaking-change release.

This intentionally raises the minimum supported analyzer host to Roslyn 4.14 (Visual Studio 2022 17.14 / .NET 9.0.3xx SDK or newer). Older hosts cannot load analyzer assemblies built against Roslyn 4.14 because Roslyn is supplied by the compiler host and excluded from the MSTest.Analyzers package.

Implementation should:

  • update MicrosoftCodeAnalysisVersion and raise MicrosoftCodeAnalysisVersionForTests to at least 4.14;
  • adopt the newer Roslyn APIs and nullable annotations where appropriate;
  • remove compatibility code that exists only for the Roslyn 3.11 build floor;
  • verify the packaged analyzers and code fixes load and run on the oldest host retained by the v5 support policy;
  • document the new minimum Visual Studio / .NET SDK requirement.

Reference: dotnet/sdk#55525, which makes the equivalent minimum-host change for the out-of-band Microsoft.CodeAnalysis.NetAnalyzers package.

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try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 · Issue #10446 · microsoft/testfx · GitHub
      Skip to content
      Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 #10446
      Open
      Task
      Open
      Raise the minimum Roslyn version for MSTest.Analyzers to 4.14#10446
      Task
      Labels
      area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
      Milestone
      MSTest 5.0 / MTP 3.0
      Description
      @Evangelink
      Amaury Levé (Evangelink)
      opened on Aug 5, 2026
      Raise MicrosoftCodeAnalysisVersion from 3.11.0 to 4.14.0 for MSTest.Analyzers and its code fixes during the next breaking-change release.
      This intentionally raises the minimum supported analyzer host to Roslyn 4.14 (Visual Studio 2022 17.14 / .NET 9.0.3xx SDK or newer). Older hosts cannot load analyzer assemblies built against Roslyn 4.14 because Roslyn is supplied by the compiler host and excluded from the MSTest.Analyzers package.
      Implementation should:
      • update MicrosoftCodeAnalysisVersion and raise MicrosoftCodeAnalysisVersionForTests to at least 4.14;
      • adopt the newer Roslyn APIs and nullable annotations where appropriate;
      • remove compatibility code that exists only for the Roslyn 3.11 build floor;
      • verify the packaged analyzers and code fixes load and run on the oldest host retained by the v5 support policy;
      • document the new minimum Visual Studio / .NET SDK requirement.
      Reference: dotnet/sdk#55525, which makes the equivalent minimum-host change for the out-of-band Microsoft.CodeAnalysis.NetAnalyzers package.
      Metadata
      Metadata
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        area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
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          None yet
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, 'i');
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try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 · Issue #10446 · microsoft/testfx · GitHub
          Skip to content
          Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 #10446
          Open
          Task
          Open
          Raise the minimum Roslyn version for MSTest.Analyzers to 4.14#10446
          Task
          Labels
          area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
          Milestone
          MSTest 5.0 / MTP 3.0
          Description
          @Evangelink
          Amaury Levé (Evangelink)
          opened on Aug 5, 2026
          Raise MicrosoftCodeAnalysisVersion from 3.11.0 to 4.14.0 for MSTest.Analyzers and its code fixes during the next breaking-change release.
          This intentionally raises the minimum supported analyzer host to Roslyn 4.14 (Visual Studio 2022 17.14 / .NET 9.0.3xx SDK or newer). Older hosts cannot load analyzer assemblies built against Roslyn 4.14 because Roslyn is supplied by the compiler host and excluded from the MSTest.Analyzers package.
          Implementation should:
          • update MicrosoftCodeAnalysisVersion and raise MicrosoftCodeAnalysisVersionForTests to at least 4.14;
          • adopt the newer Roslyn APIs and nullable annotations where appropriate;
          • remove compatibility code that exists only for the Roslyn 3.11 build floor;
          • verify the packaged analyzers and code fixes load and run on the oldest host retained by the v5 support policy;
          • document the new minimum Visual Studio / .NET SDK requirement.
          Reference: dotnet/sdk#55525, which makes the equivalent minimum-host change for the out-of-band Microsoft.CodeAnalysis.NetAnalyzers package.
          Metadata
          Metadata
          Assignees
          No one assigned
            Labels
            area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
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, 'i');
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} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 · Issue #10446 · microsoft/testfx · GitHub
              Skip to content
              Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 #10446
              Open
              Task
              Open
              Raise the minimum Roslyn version for MSTest.Analyzers to 4.14#10446
              Task
              Labels
              area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
              Milestone
              MSTest 5.0 / MTP 3.0
              Description
              @Evangelink
              Amaury Levé (Evangelink)
              opened on Aug 5, 2026
              Raise MicrosoftCodeAnalysisVersion from 3.11.0 to 4.14.0 for MSTest.Analyzers and its code fixes during the next breaking-change release.
              This intentionally raises the minimum supported analyzer host to Roslyn 4.14 (Visual Studio 2022 17.14 / .NET 9.0.3xx SDK or newer). Older hosts cannot load analyzer assemblies built against Roslyn 4.14 because Roslyn is supplied by the compiler host and excluded from the MSTest.Analyzers package.
              Implementation should:
              • update MicrosoftCodeAnalysisVersion and raise MicrosoftCodeAnalysisVersionForTests to at least 4.14;
              • adopt the newer Roslyn APIs and nullable annotations where appropriate;
              • remove compatibility code that exists only for the Roslyn 3.11 build floor;
              • verify the packaged analyzers and code fixes load and run on the oldest host retained by the v5 support policy;
              • document the new minimum Visual Studio / .NET SDK requirement.
              Reference: dotnet/sdk#55525, which makes the equivalent minimum-host change for the out-of-band Microsoft.CodeAnalysis.NetAnalyzers package.
              Metadata
              Metadata
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                Labels
                area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
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                  None yet
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, 'i');
if (__m === '*' || __re.test(location.href)) {
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var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
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var changed = false;
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if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
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function cleanLinks() {
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if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
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} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 · Issue #10446 · microsoft/testfx · GitHub
                  Skip to content
                  Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 #10446
                  Open
                  Task
                  Open
                  Raise the minimum Roslyn version for MSTest.Analyzers to 4.14#10446
                  Task
                  Labels
                  area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
                  Milestone
                  MSTest 5.0 / MTP 3.0
                  Description
                  @Evangelink
                  Amaury Levé (Evangelink)
                  opened on Aug 5, 2026
                  Raise MicrosoftCodeAnalysisVersion from 3.11.0 to 4.14.0 for MSTest.Analyzers and its code fixes during the next breaking-change release.
                  This intentionally raises the minimum supported analyzer host to Roslyn 4.14 (Visual Studio 2022 17.14 / .NET 9.0.3xx SDK or newer). Older hosts cannot load analyzer assemblies built against Roslyn 4.14 because Roslyn is supplied by the compiler host and excluded from the MSTest.Analyzers package.
                  Implementation should:
                  • update MicrosoftCodeAnalysisVersion and raise MicrosoftCodeAnalysisVersionForTests to at least 4.14;
                  • adopt the newer Roslyn APIs and nullable annotations where appropriate;
                  • remove compatibility code that exists only for the Roslyn 3.11 build floor;
                  • verify the packaged analyzers and code fixes load and run on the oldest host retained by the v5 support policy;
                  • document the new minimum Visual Studio / .NET SDK requirement.
                  Reference: dotnet/sdk#55525, which makes the equivalent minimum-host change for the out-of-band Microsoft.CodeAnalysis.NetAnalyzers package.
                  Metadata
                  Metadata
                  Assignees
                  No one assigned
                    Labels
                    area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
                    Type
                    Task
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                    No projects
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                      Relationships
                      None yet
                      Development
                      No branches or pull requests
                      Issue actions
                      
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 · Issue #10446 · microsoft/testfx · GitHub
                      Skip to content
                      Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 #10446
                      Open
                      Task
                      Open
                      Raise the minimum Roslyn version for MSTest.Analyzers to 4.14#10446
                      Task
                      Labels
                      area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
                      Milestone
                      MSTest 5.0 / MTP 3.0
                      Description
                      @Evangelink
                      Amaury Levé (Evangelink)
                      opened on Aug 5, 2026
                      Raise MicrosoftCodeAnalysisVersion from 3.11.0 to 4.14.0 for MSTest.Analyzers and its code fixes during the next breaking-change release.
                      This intentionally raises the minimum supported analyzer host to Roslyn 4.14 (Visual Studio 2022 17.14 / .NET 9.0.3xx SDK or newer). Older hosts cannot load analyzer assemblies built against Roslyn 4.14 because Roslyn is supplied by the compiler host and excluded from the MSTest.Analyzers package.
                      Implementation should:
                      • update MicrosoftCodeAnalysisVersion and raise MicrosoftCodeAnalysisVersionForTests to at least 4.14;
                      • adopt the newer Roslyn APIs and nullable annotations where appropriate;
                      • remove compatibility code that exists only for the Roslyn 3.11 build floor;
                      • verify the packaged analyzers and code fixes load and run on the oldest host retained by the v5 support policy;
                      • document the new minimum Visual Studio / .NET SDK requirement.
                      Reference: dotnet/sdk#55525, which makes the equivalent minimum-host change for the out-of-band Microsoft.CodeAnalysis.NetAnalyzers package.
                      Metadata
                      Metadata
                      Assignees
                      No one assigned
                        Labels
                        area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
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                        Task
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                          None yet
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                          No branches or pull requests
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
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unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 · Issue #10446 · microsoft/testfx · GitHub
                          Skip to content
                          Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 #10446
                          Open
                          Task
                          Open
                          Raise the minimum Roslyn version for MSTest.Analyzers to 4.14#10446
                          Task
                          Labels
                          area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
                          Milestone
                          MSTest 5.0 / MTP 3.0
                          Description
                          @Evangelink
                          Amaury Levé (Evangelink)
                          opened on Aug 5, 2026
                          Raise MicrosoftCodeAnalysisVersion from 3.11.0 to 4.14.0 for MSTest.Analyzers and its code fixes during the next breaking-change release.
                          This intentionally raises the minimum supported analyzer host to Roslyn 4.14 (Visual Studio 2022 17.14 / .NET 9.0.3xx SDK or newer). Older hosts cannot load analyzer assemblies built against Roslyn 4.14 because Roslyn is supplied by the compiler host and excluded from the MSTest.Analyzers package.
                          Implementation should:
                          • update MicrosoftCodeAnalysisVersion and raise MicrosoftCodeAnalysisVersionForTests to at least 4.14;
                          • adopt the newer Roslyn APIs and nullable annotations where appropriate;
                          • remove compatibility code that exists only for the Roslyn 3.11 build floor;
                          • verify the packaged analyzers and code fixes load and run on the oldest host retained by the v5 support policy;
                          • document the new minimum Visual Studio / .NET SDK requirement.
                          Reference: dotnet/sdk#55525, which makes the equivalent minimum-host change for the out-of-band Microsoft.CodeAnalysis.NetAnalyzers package.
                          Metadata
                          Metadata
                          Assignees
                          No one assigned
                            Labels
                            area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
                            Type
                            Task
                            Projects
                            No projects
                              Milestone
                              Relationships
                              None yet
                              Development
                              No branches or pull requests
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 · Issue #10446 · microsoft/testfx · GitHub
                              Skip to content
                              Raise the minimum Roslyn version for MSTest.Analyzers to 4.14 #10446
                              Open
                              Task
                              Open
                              Raise the minimum Roslyn version for MSTest.Analyzers to 4.14#10446
                              Task
                              Labels
                              area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
                              Milestone
                              MSTest 5.0 / MTP 3.0
                              Description
                              @Evangelink
                              Amaury Levé (Evangelink)
                              opened on Aug 5, 2026
                              Raise MicrosoftCodeAnalysisVersion from 3.11.0 to 4.14.0 for MSTest.Analyzers and its code fixes during the next breaking-change release.
                              This intentionally raises the minimum supported analyzer host to Roslyn 4.14 (Visual Studio 2022 17.14 / .NET 9.0.3xx SDK or newer). Older hosts cannot load analyzer assemblies built against Roslyn 4.14 because Roslyn is supplied by the compiler host and excluded from the MSTest.Analyzers package.
                              Implementation should:
                              • update MicrosoftCodeAnalysisVersion and raise MicrosoftCodeAnalysisVersionForTests to at least 4.14;
                              • adopt the newer Roslyn APIs and nullable annotations where appropriate;
                              • remove compatibility code that exists only for the Roslyn 3.11 build floor;
                              • verify the packaged analyzers and code fixes load and run on the oldest host retained by the v5 support policy;
                              • document the new minimum Visual Studio / .NET SDK requirement.
                              Reference: dotnet/sdk#55525, which makes the equivalent minimum-host change for the out-of-band Microsoft.CodeAnalysis.NetAnalyzers package.
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                                area/analyzersMSTest.Analyzers Roslyn analyzers and code fixes.type/breaking-changeBehavioral or API breaking change.
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