release: 1.21.0

[Ahmedhossamdev]

Automated Release PR

1.21.0 (2026-08-23)

Features

• initial stlc build (846117a)
• initial stlc build (c6b7016)

Bug Fixes

• add release-please config to all targets (067651f)
• resolve custom-code merge conflicts across kotlin, java (07b355e)
• update agency endpoint description (38df720)

Chores

• add stlc promote and sync workflows (daa14f2)

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This PR was generated with Release Please. See documentation.

Summary by CodeRabbit

• Release
  • Released version 1.21.0.
  • Includes improvements to STLC builds, promotion and synchronization workflows, and custom-code merge conflict handling.
  • Added documentation for the agency endpoint.
  • Includes release configuration updates and multiple bug fixes.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 42979d5b-7434-4870-8b1d-a9404e686fc4

📥 Commits

Reviewing files that changed from the base of the PR and between 067651f and 5828030.

⛔ Files ignored due to path filters (1)

• package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (4)

• .release-please-manifest.json
• CHANGELOG.md
• package.json
• src/version.ts

Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review.

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📝 Walkthrough

Walkthrough

The release metadata, package version, exported VERSION constant, and changelog were updated from 1.20.0 to 1.21.0.

Changes

Release version update

Layer / File(s)	Summary
Version metadata and changelog .release-please-manifest.json, package.json, src/version.ts, CHANGELOG.md	The release manifest, package version, and exported VERSION constant now use 1.21.0. The changelog includes the 1.21.0 release entry dated 2026-08-23.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: ⚪ Minimal · up to 58280

This release PR updates versioning, package metadata, the lockfile, and the changelog; no actionable merge-blocking risk remains beyond normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies this pull request as the release of version 1.21.0.
Docstring Coverage	✅ Passed	Docstring check was indeterminate for this PR — some files could not be analyzed in time. Not blocking.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch release-please--branches--main--components--onebusaway-sdk

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[Ahmedhossamdev]

🤖 Created releases:

• v1.21.0

🌻