chore(main): release 1.39.0

[stubbi]

🤖 I have created a release beep boop

1.39.0 (2026-07-10)

Features

• gateway: let an operator grant an org a tier above the free default (#881) (475ed4a)
• mcp: screen tool calls against vendored ATR rules in report mode (#849) (f4bf605)

Bug Fixes

• guest: reseed the run_code kernel PRNGs after a fork (#882) (6b23d6a)
• sdk: pool HTTP connections so a create does not pay two TLS handshakes (#877) (d3ef408)
• usage: bill cumulative-counter deltas that span a window boundary (#822) (737ac32), closes #755

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📝 Walkthrough

Walkthrough

Release metadata was advanced to v1.39.0, the changelog gained feature and bug-fix notes, and the Mitos Helm chart plus listed component image tags were updated to v1.39.0.

Changes

Release metadata

Layer / File(s)	Summary
Versioned release artifacts .release-please-manifest.json, CHANGELOG.md, deploy/charts/mitos/Chart.yaml	The release manifest, changelog, Helm chart version fields, and Artifact Hub image tags were updated to 1.39.0; the changelog records gateway and mcp features plus SDK and usage bug fixes.

Estimated code review effort: 1 (Trivial) | ~3 minutes

Possibly related PRs

• mitos-run/mitos#873: Updates the same release artifacts to an adjacent release version.
• mitos-run/mitos#867: Updates the same release artifacts and chart/container tags.
• mitos-run/mitos#821: Updates the same manifest, changelog, chart metadata, and image tags.

Suggested labels: autorelease: tagged

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description is missing the required template sections like Thinking Path, Linked Issues, Verification, Risks, Model Used, and Checklist.	Fill out the repository template: add a 5-8 step Thinking Path, linked issue or issue form, What Changed, Verification, Risks, Model Used, and Checklist.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	The release includes the usage fix for counter deltas crossing window boundaries, matching issue #755.
Out of Scope Changes check	✅ Passed	The version bumps, changelog entry, and chart metadata changes are consistent with a release PR.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Title check	✅ Passed	The title is a clear conventional-commit release summary and matches the 1.39.0 version bump.

✨ 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--mitos

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[stubbi]

🤖 Created releases:

• v1.39.0

🌻