release: 0.50.0

[stainless-app]

Automated Release PR

0.50.0 (2026-04-20)

Full Changelog: v0.49.0...v0.50.0

Features

• add POST /browsers/{id}/curl and /curl/raw endpoints (e91bc38)
• remove paid plan gating from project endpoints (284c2d4)

Bug Fixes

• ensure file data are only sent as 1 parameter (e566aa5)
• include MFA and sign-in options in CUA SSO-only step response (ea9576b)

Performance Improvements

• client: optimize file structure copying in multipart requests (d46c711)

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Note

Medium Risk
Medium risk because it adds a new browsers.curl API surface and changes how multipart request bodies are copied/extracted across several endpoints, which could affect file upload behavior and request payload mutation.

Overview
Bumps the SDK to v0.50.0 (metadata, pyproject.toml, CHANGELOG.md, and api.md).

Adds POST /browsers/{id}/curl to the browsers resource (sync/async + raw/streaming wrappers), along with new BrowserCurlParams/BrowserCurlResponse types and associated tests/docs.

Fixes and optimizes multipart file handling by introducing deepcopy_with_paths (copy only containers on file paths), removing deepcopy_minimal, and adjusting extract_files to correctly pop fields when paths end with "<array>" markers; updates multiple upload-style endpoints (browsers extensions, browser fs uploads, deployments, extensions) to use the new copy helper. Also adds optional hint to managed-auth field models and updates project docs to remove “paid plan” gating language.

^{Reviewed by Cursor Bugbot for commit 027f179. Bugbot is set up for automated code reviews on this repo. Configure here.}

[firetiger-agent]

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[stainless-app]

🧪 Testing

To try out this version of the SDK:

pip install 'https://pkg.stainless.com/s/kernel-python/284c2d434be9d098efbaf33b14b416acd4c78e18/kernel-0.49.0-py3-none-any.whl'

Expires at: Wed, 20 May 2026 23:09:30 GMT
Updated at: Mon, 20 Apr 2026 23:09:30 GMT

[stainless-app]

🤖 Release is at https://github.com/kernel/kernel-python-sdk/releases/tag/v0.50.0 🌻