spec-kit

v0.9.0 Breaking

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

Published 2d Developer Productivity

View tool

✓ 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

Affected surfaces

breaking_upgrade

ReleasePort's take

Light signal

editorial:auto 2d

The v0.9.0 release requires migrating agent context updates to the bundled agent-context extension.

Why it matters: Migration is mandated for any code using agent context handling; failure will break functionality after upgrade.

Summary

AI summary

Updates chore, fix, and deps across a mixed release.

Changes in this release

Type	Severity	Summary	CVE
Dependency	Low	Update Reqnroll BDD extension to v1.1.0. Update Reqnroll BDD extension to v1.1.0. Source: granite4.1:30b@2026-06-01-audit Confidence: low	—
Dependency	Low	Bump actions/setup-dotnet from 5.2.0 to 5.3.0. Bump actions/setup-dotnet from 5.2.0 to 5.3.0. Source: granite4.1:30b@2026-06-01-audit Confidence: low	—
Refactor	Low	Migrate agent context updates to bundled agent-context extension. Migrate agent context updates to bundled agent-context extension. Source: llm_adapter@2026-06-01 Confidence: high	—

Full changelog

Install

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

Notice

We have migrated agent context updates to the agent-context extension and currently auto-enable it to preserve existing behavior. This compatibility fallback is deprecated and will be removed in v0.12.0; after that, explicitly enable/configure agent-context to continue automatic context updates.

What's Changed

chore: bump version to 0.9.0
chore: recompile workflow lock files (#2774)
Add Multi-Sites Spec Kit extension to community catalog (#2791)
Update Product Spec Extension to v0.8.3 (#2790)
Publish May 2026 Newsletter (#2787)
fix: move URL install confirmation prompt before spinner (#2783) (#2784)
Update Reqnroll BDD extension to v1.1.0 (#2775)
Extract agent context updates into bundled agent-context extension (#2546)
chore(deps): bump actions/setup-dotnet from 5.2.0 to 5.3.0 (#2755)
chore: release 0.8.18, begin 0.8.19.dev0 development (#2766)

Breaking Changes

Auto‑enable of the legacy agent context update mechanism is deprecated and will be removed in v0.12.0; explicit enablement of the agent-context extension is required thereafter.

View diff on GitHub

Weekly OSS security release digest.

The CVE patches and breaking changes that affected production tools this week. One email, every Sunday.

No spam, unsubscribe anytime.

Share this release

Share on X Share on Bluesky

Track spec-kit

Get notified when new releases ship.

About spec-kit

All releases →