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spec-kit

v0.12.3 Breaking

This release includes 1 breaking change for platform teams planning a safe upgrade.

✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

ai copilot development engineering prd spec
+1 more
spec-driven

Summary

AI summary

Updates chore, integrations, and copilot across a mixed release.

Full changelog

Install

uv tool install specify-cli --from git+https://github.com/github/[email protected]
specify init my-project

What's Changed

  • chore: bump version to 0.12.3
  • feat(copilot): warn before skills default rollout (#3256)
  • Add June 2026 newsletter (#3289)
  • docs(toc): add Bundles and Authentication to the Reference nav (#3267)
  • fix(integrations): add zed to discovery catalog.json (#3266)
  • fix(integrations): cline hook note collapses onto instruction at EOF (#3263)
  • refactor: move workflow command handlers to workflows/_commands.py (PR-8/8) (#3159)
  • chore: retire Roo Code integration — extension shut down (#3167) (#3212)
  • fix(bundle): allow 'catalog remove' by the same relative path used to add (#3242)
  • fix(workflows): reject bool max_iterations in while/do-while validation (#3237)
  • fix: allow prerelease spec-kit versions in compatibility checks (#2695)
  • chore: release 0.12.2, begin 0.12.3.dev0 development (#3259)

Breaking Changes

  • Retire Roo Code integration — extension shut down

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Related context

Earlier breaking changes

  • v0.10.0 Legacy AI flags (--ai, --ai-commands-dir, --ai-skills) removed.
  • v0.10.0 Git extension is now opt-in; --no-git flag removed.

Beta — feedback welcome: [email protected]