# spec-kit v0.16.0 — Spec Kit - 0.16.0

- Product: spec-kit (https://whatsnew.fyi/product/spec-kit)
- Vendor: github
- Date: 2026-08-05
- Version: v0.16.0
- Original notes: https://github.com/github/spec-kit/releases/tag/v0.16.0
- Permalink: https://whatsnew.fyi/product/spec-kit/releases/v0.16.0

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

---

- **changed** — Copilot default integration changed to install skills instead of commands
- **fixed** — Keep long frontmatter values on a single line
- **fixed** — Skip corrupted run state files in list_runs
- **fixed** — Start fresh on a non-UTF-8 preset registry
- **fixed** — Preserve a non-UTF-8 config.toml on hook install/teardown
- **fixed** — Treat an unreadable staged backup as a conflict in extensions
- **fixed** — Reject non-string requires.speckit_version in manifests
- **fixed** — Reject reinstall when a kept config cannot be read in extensions
- **fixed** — Return None for an unparseable script command in events
- **added** — Context injection for opencode and JSON-envelope agent hooks in events
- **fixed** — Ignore non-UTF-8 event overrides
- **fixed** — Cap stdin read at 1 MiB to prevent DoS
- **fixed** — Reject mismatched run state IDs in workflows

##### Install

```bash
uv tool install specify-cli --from git+https://github.com/github/spec-kit.git@v0.16.0
specify init my-project
```

**⚠️ Copilot default changed:** `specify init --integration copilot` now installs **skills** (`.github/skills/speckit-*/SKILL.md`) by default instead of commands. Use `--integration-options="--commands"` for the previous behavior; existing command-layout projects are preserved on upgrade.

##### What's Changed

- chore: bump version to 0.16.0
- fix: keep long frontmatter values on a single line (#3989)
- fix: skip corrupted run state files in list_runs (#3817)
- fix: skip corrupted run state files in list_runs (#3814)
- Add July 2026 newsletter (#3987)
- fix(presets): start fresh on a non-UTF-8 preset registry (#3955)
- docs: clarify agent PR review prioritization (#3985)
- fix(events): preserve a non-UTF-8 config.toml on hook install/teardown (#3963)
- fix(extensions): treat an unreadable staged backup as a conflict (#3962)
- fix(manifests): reject non-string requires.speckit_version (#3980)
- fix(extensions): reject reinstall when a kept config cannot be read (#3960)
- [extension] Update Charter extension to v0.5.1 (#3983)
- fix(events): return None for an unparseable script command (#3957)
- feat(events): context injection for opencode and JSON-envelope agent hooks (#3934)
- Add TDD Extension to community catalog (#3982)
- Update Archive Extension to v1.1.0 (#3981)
- feat(copilot): default integration to skills (#3976)
- fix(events): ignore non-UTF-8 event overrides (#3897)
- fix: cap stdin read at 1 MiB to prevent DoS (#3857)
- fix(workflows): reject mismatched run state IDs (#3899)
- chore: release 0.15.2, begin 0.15.3.dev0 development (#3953)