[miguel-heygen]

What

Release v0.9.27: a version bump of all packages and plugin manifests, the changelog entry and releases/v0.9.27.md.

Studio renders now wait for the same one-at-a-time render slot as the CLI, so two renders no longer split one machine between them. Long project paths on Windows and the macOS developer-tools prompt are fixed too.

User-facing changes since v0.9.26:

• fix(cli): Studio renders take the same one-render-slot lock as the CLI #7459 Studio renders take the same one-render-slot lock as the CLI
• fix(cli): templates pull unpacks under .hyperframes, not beside templates/ #7269 templates pull unpacks under .hyperframes, not beside templates/
• fix(cli): staging folders beside a project path no longer fail past 260 characters on Windows #7338 staging folders beside a project path no longer fail past 260 characters on Windows
• fix(cli): no macOS developer-tools prompt from git, xcrun or cc checks on a Mac without the tools #7257 no macOS developer-tools prompt from git, xcrun or cc checks on a Mac without the tools
• fix(cli): label SVG contact sheet thumbnails by file name on Windows #6732 SVG contact sheet thumbnails are labelled by file name on Windows
• fix(cli): transcribe reads whisper output with nan or inf values #7110 transcribe reads whisper output with nan or inf values
• fix(cli): spaced-path hint takes the longest path and reads --flag=value; telemetry docs name the reverse session id #7452 the spaced-path hint takes the longest path and reads --flag=value
• fix(cli): measure answers the four mistakes agents make most #7443 measure answers the four mistakes agents make most
• fix(core): a video held on its tail is seeked once, not every frame #7442 a video held on its tail is seeked once, not every frame
• fix(core): detect template entries structurally #7249 template entries are detected structurally
• feat(producer): distributed and range renders honour page motion blur #7311 distributed and range renders honour page motion blur
• feat(cli): reverse and templates report their own runs; commands say which skills are installed #7444, feat(skills): reverse-any-video and style-sampling install with the core set #7445, feat(skills): route a style outside the templates instead of listing them #7450, fix(skills): await the player seek in seam-gate #7454 skills: reverse and templates report their own runs, reverse-any-video and style-sampling install with the core set, a style outside the templates is routed, seam-gate awaits the player seek
• feat(cli): detect more agent runtimes in telemetry #7423, fix(cli): let an agent's own name beat editor and host markers #7424, feat(cli): add agent markers other detectors use, verified upstream #7425, docs(cli): correct Claude Code marker comments in agent detection #7426 agent detection markers
• docs(mcp): current ChatGPT and Claude setup steps, the hosted render's real output, and a first prompt that works #7439 MCP setup docs

Internal only: #7437, #7456, #7455, #7000, #7453, #7422.

Why

Ships the fixes above, the Studio render slot first.

Related work

Follows chore: release v0.9.26 (#7421).

How

bun run release:prepare 0.9.27 on release/v0.9.27 at main 7bf19ab (CI, regression, Windows render verification, preview-regression and CodeQL green there). The generated TODO summary was rewritten by hand and the style-bar comment removed in both notes files; the cloud client resync line was reworded to name no internal system. The bump was committed by hand, signed; no tag is pushed, the release workflow tags when this PR closes. The diff is 22 files: 20 version strings, the changelog entry and the notes file.

No visible change

Version bump and changelog only. Each change was captured in its own PR.

Test plan

• Unit tests added/updated (release commit only, no code)
• Manual testing performed: diff checked to be only version strings plus the two notes files
• Documentation updated: docs/changelog.mdx and releases/v0.9.27.md
• Comments follow CONTRIBUTING.md "Comments"

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Project	Status	Preview	Updated
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[heygengenesis]

Approved at ec4a6adf. It contains only the version bump and notes.

• All 20 version fields go from 0.9.26 to 0.9.27 (packages, plugin manifests, gemini-extension.json). No other 0.9.26 version string is left; the only remaining 0.9.26 mentions are prose in docs/weekly-updates.mdx.
• releases/v0.9.27.md and docs/changelog.mdx list the same 26 commits, which are exactly the commits in v0.9.26... the base. Nothing is missing or extra, and each entry links the right commit and PR. The compare link is v0.9.26...v0.9.27.
• All 11 workflows on this head are green; Comments was skipped.

Nit, not blocking: the <Update> tags (Engine, CLI, Mcp) leave out Skills, Core and Producer, which have user-facing entries. Worth checking the generator's tag pick in a later release.