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Automated Release PR
0.29.0 (2026-01-30)
Full Changelog: v0.28.0...v0.29.0
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actions/github-script(4828aba)This pull request is managed by Stainless's GitHub App.
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Note
Medium Risk
Changes request-body serialization in the core HTTP client, which can affect how payloads are encoded/sent (especially around multipart vs JSON). Other changes are mostly version/docs/CI updates with low runtime impact.
Overview
Bumps the SDK release to
0.29.0(version metadata, manifest, changelog, and OpenAPI spec pointers) and updates CI to useactions/github-script@v8for OIDC token retrieval.Adds a custom JSON serialization path (
openapi_dumps) to support SDK types likedatetimeandpydantic.BaseModel(including alias fields) and switches request building to use this encoder when sending JSON bodies (while avoidingcontentwhen using multipart). Also documents a newly supported browser viewport option1280x800@60across browser and browser pool types/resources, with accompanying unit tests for the JSON encoder.Written by Cursor Bugbot for commit 9a7f85d. This will update automatically on new commits. Configure here.