release: 1.21.1

[stainless-app]

Automated Release PR

1.21.1 (2026-04-08)

Full Changelog: v1.21.0...v1.21.1

Bug Fixes

• client: preserve hardcoded query params when merging with user params (987fbc7)

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[cursor]

PR Summary

Medium Risk
Modifies core request construction and multipart/file-extraction behavior; could change outgoing request URLs/body shapes for some endpoints if query params or file arrays were previously handled implicitly.

Overview
Bumps the SDK version to 1.21.1 and updates the changelog for this release.

Fixes request building so hardcoded query parameters embedded in options.url (e.g. /foo?beta=true) are preserved and merged with user-supplied params rather than being dropped/overwritten, with new sync/async tests covering encoded paths.

Fixes extract_files path traversal so file arrays (including top-level arrays like files[]) are removed from the input mapping and emitted exactly once, preventing duplicated/incorrect multipart parameters, with an added regression test.

^{Reviewed by Cursor Bugbot for commit c1c63c6. Bugbot is set up for automated code reviews on this repo. Configure here.}

[stainless-app]

🧪 Testing

To try out this version of the SDK:

pip install 'https://pkg.stainless.com/s/luma_ai-python/a7c0bac3f06d2b362199676ea634ee07e4f33f47/lumaai-1.21.0-py3-none-any.whl'

Expires at: Mon, 11 May 2026 08:01:13 GMT
Updated at: Sat, 11 Apr 2026 08:01:13 GMT