# spec-kit v0.16.5 — Spec Kit - 0.16.5

- Product: spec-kit (https://whatsnew.fyi/product/spec-kit)
- Vendor: github
- Date: 2026-08-19
- Version: v0.16.5
- Original notes: https://github.com/github/spec-kit/releases/tag/v0.16.5
- Permalink: https://whatsnew.fyi/product/spec-kit/releases/v0.16.5

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'.

---

- **fixed** — Stop Out-Null swallowing setup-tasks AVAILABLE_DOCS lines in PowerShell
- **fixed** — Provision Spec Kit CLI and assess extension in feature-assess host setup steps
- **fixed** — Provision uv and Python for feature-assess workflow
- **added** — Add feature-assess agentic workflow that installs and runs Spec Kit
- **changed** — Update Superpowers Implementation Bridge to v1.2.0
- **fixed** — Stop specify init hanging on arrow-key pickers in agent harnesses
- **added** — Add DUBSAR Memory extension to community catalog
- **added** — Add AgentPay x402 extension to community catalog
- **changed** — Update Keel Discovery extension to v0.2.0
- **fixed** — Confine event hook script paths to the project tree
- **changed** — Clarify extension catalog trust model in docs, help, and messaging
- **added** — Add ASCII Diagram Renderer extension to community catalog
- **changed** — Update Intake Review Governance preset to v0.2.1
- **fixed** — Clean up download temp file on interrupt or typer.Exit in workflows
- **fixed** — Report a falsy non-mapping overlay manifest as a shape error in workflows
- **fixed** — Resolve built-in step types when checking bundle component references in bundler
- **added** — Add SpecAssay bundle to community catalog

##### Install

```bash
uv tool install specify-cli --from git+https://github.com/github/spec-kit.git@v0.16.5
specify init my-project
```

##### What's Changed

- chore: bump version to 0.16.5
- fix(powershell): stop Out-Null swallowing setup-tasks AVAILABLE_DOCS lines (#4188)
- fix: provision Spec Kit CLI and assess extension in feature-assess host setup steps (#4195)
- fix: provision uv and Python for feature-assess workflow (#4193)
- feat: add feature-assess agentic workflow that installs and runs Spec Kit (#4186)
- [extension] Update Superpowers Implementation Bridge to v1.2.0 (#4183)
- fix(init): stop specify init hanging on arrow-key pickers in agent harnesses (#4178)
- [extension] Add DUBSAR Memory extension to community catalog (#4170)
- Add AgentPay x402 extension to community catalog (#4174)
- Update Keel Discovery extension to v0.2.0 (#4172)
- fix: confine event hook script paths to the project tree (#4133)
- Clarify extension catalog trust model in docs, help, and messaging (#4177)
- Add pay-x402 community extension with correct catalog-addition timestamps (#4175)
- Add ASCII Diagram Renderer extension to community catalog (#4173)
- Update Intake Review Governance preset to v0.2.1 (#4169)
- test(presets): normalize whitespace in resolve output assertion to prevent terminal line-wrap failures (#4166)
- fix(workflows): clean up download temp file on interrupt or typer.Exit (#4134)
- fix(workflows): report a falsy non-mapping overlay manifest as a shape error (#3884)
- fix(bundler): resolve built-in step types when checking bundle component references (#3885)
- Add SpecAssay bundle to community catalog (#4125)
- chore: release 0.16.4, begin 0.16.5.dev0 development (#4124)