release: 0.9.1

[stainless-app]

Automated Release PR

0.9.1 (2025-08-15)

Full Changelog: v0.9.0...v0.9.1

Features

• api: add browser timeouts (a89eff3)
• api: add browser ttls (ad95f5f)

Chores

• internal: codegen related update (024c808)
• internal: update comment in script (4279b99)
• update @stainless-api/prism-cli to v5.15.0 (e78750e)

---

This pull request is managed by Stainless's GitHub App.

The semver version number is based on included commit messages. Alternatively, you can manually set the version number in the title of this pull request.

For a better experience, it is recommended to use either rebase-merge or squash-merge when merging this pull request.

🔗 Stainless website
📚 Read the docs
🙋 Reach out for help or questions

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TL;DR

This is an automated patch release (0.9.1) for the Python SDK, primarily adding support for browser inactivity timeouts and enriching browser API responses with more session details.

Why we made these changes

These changes enhance resource management by allowing users to set inactivity timeouts for browser sessions, reducing resource consumption. Additionally, providing more detailed session information (like headless and stealth modes, and configured timeouts) in API responses improves visibility and control over browser instances.

What changed?

• New Features: Implemented timeout_seconds for browser creation parameters to specify inactivity timeouts, and added headless, stealth, and timeout_seconds fields to various browser API response types (BrowserCreateResponse, BrowserListResponseItem, BrowserRetrieveResponse).
• Dependencies: Updated @stainless-api/prism-cli to v5.15.0 in scripts.
• Release Automation: Version 0.9.1 reflected in pyproject.toml, src/kernel/_version.py, CHANGELOG.md, and .release-please-manifest.json.
• Tests & Internal: Updates to various API resource tests (e.g., tests/api_resources/browsers/, tests/api_resources/test_apps.py) including explicit reasons for skipping Prism-related tests, and general codegen-related internal updates.

^{Description generated by Mesa. Update settings}

[stainless-app]

🧪 Testing

To try out this version of the SDK, run:

pip install 'https://pkg.stainless.com/s/kernel-python/a89eff39afa75499d0efe2c54fe12a0a18cdf90e/kernel-0.9.0-py3-none-any.whl'

Expires: Sun, 14 Sep 2025 17:19:19 GMT

[mesa-dot-dev]

Mesa Description

TL;DR

This is an automated release PR to bump the project version to 0.9.1, incorporating updated dependency versions and an internal script change.

Why we made these changes

This PR is part of the automated release process, reflecting minor internal updates and ensuring that the project's version, changelog, and dependencies are synchronized for the 0.9.1 release.

What changed?

• .release-please-manifest.json: Updated for release tracking.
• CHANGELOG.md: Added entry for version 0.9.1.
• pyproject.toml: Project version bumped from 0.9.0 to 0.9.1.
• scripts/mock: @stainless-api/prism-cli updated from 5.8.5 to 5.15.0.
• scripts/test: npm exec command updated to use @stainless-api/[email protected].
• src/kernel/_version.py: Kernel's internal version updated to 0.9.1.

[mesa-dot-dev]

Performed full review of bc768d2...41d3c71

^{6 files reviewed | 0 comments | Review on Mesa | Edit Reviewer Settings}

[stainless-app]

Release version edited manually

The Pull Request version has been manually set to 0.9.1 and will be used for the release.

If you instead want to use the version number 0.10.0 generated from conventional commits, just remove the label autorelease: custom version from this Pull Request.

[stainless-app]

🤖 Release is at https://github.com/onkernel/kernel-python-sdk/releases/tag/v0.9.1 🌻