Release: Prerelease 9.1.0-alpha.9

[github-actions]

This is an automated pull request that bumps the version from 9.1.0-alpha.8 to 9.1.0-alpha.9.
Once this pull request is merged, it will trigger a new release of version 9.1.0-alpha.9.
If you're not a core maintainer with permissions to release you can ignore this pull request.

To do

Before merging the PR, there are a few QA steps to go through:

• Add the "freeze" label to this PR, to ensure it doesn't get automatically forced pushed by new changes.
• Add the "ci:daily" label to this PR, to trigger the full test suite to run on this PR.

And for each change below:

1. Ensure the change is appropriate for the version bump. E.g. patch release should only contain patches, not new or de-stabilizing features. If a change is not appropriate, revert the PR.
2. Ensure the PR is labeled correctly with one of: "BREAKING CHANGE", "feature request", "bug", "maintenance", "dependencies", "documentation", "build", "unknown".
3. Ensure the PR title is correct, and follows the format "[Area]: [Summary]", e.g. "React: Fix hooks in CSF3 render functions". If it is not correct, change the title in the PR.
   • Areas include: React, Vue, Core, Docs, Controls, etc.
   • First word of summary indicates the type: “Add”, “Fix”, “Upgrade”, etc.
   • The entire title should fit on a line

This is a list of all the PRs merged and commits pushed directly to next, that will be part of this release:

• 🐛 Bug: CLI: Fix Storybook doctor compatibility checks #32077 (will also be patched)
• ✨ Feature Request: Test: Add mock capabilities #31987
• 🔧 Maintenance: Telemetry: Add nodeLinker to telemetry #32072 (will also be patched)
• 🐛 Bug: Svelte: Fix union types generating invalid labels in argTypes #31980 (will also be patched)
• 📝 Documentation: docs: remove deprecated vscode extension #32078 (will also be patched)
• 📝 Documentation: Docs: How we develop features and release Storybook #31662 (will also be patched)

If you've made any changes doing the above QA (change PR titles, revert PRs), manually trigger a re-generation of this PR with this workflow and wait for it to finish. It will wipe your progress in this to do, which is expected.

Feel free to manually commit any changes necessary to this branch after you've done the last re-generation, following the Make Manual Changes section in the docs, especially if you're making changes to the changelog.

When everything above is done:

• Merge this PR
• Follow the run of the publish action

---

Generated changelog

9.1.0-alpha.9

• CLI: Fix Storybook doctor compatibility checks - #32077, thanks yannbf!
• Svelte: Fix union types generating invalid labels in argTypes - #31980, thanks grantralls!
• Telemetry: Add nodeLinker to telemetry - #32072, thanks valentinpalkovic!
• Test: Add mock capabilities - #31987, thanks valentinpalkovic!

[nx-cloud]

View your CI Pipeline Execution ↗ for commit ea1a760

Command	Status	Duration	Result
nx run-many -t check -c production --parallel=7	✅ Succeeded	1s	View ↗
nx run-many -t build -c production --parallel=3	✅ Succeeded	2s	View ↗

---

☁️ Nx Cloud last updated this comment at 2025-07-21 11:33:22 UTC

[storybook-app-bot]

Package Benchmarks

^{Commit: ea1a760, ran on 21 July 2025 at 11:38:03 UTC}

The following packages have significant changes to their size or dependencies:

storybook

	Before	After	Difference
Dependency count	51	56	🚨 +5 🚨
Self size	31.75 MB	41.35 MB	🚨 +9.60 MB 🚨
Dependency size	17.46 MB	18.22 MB	🚨 +762 KB 🚨
Bundle Size Analyzer	Link	Link

@storybook/vue3-vite

	Before	After	Difference
Dependency count	104	105	🚨 +1 🚨
Self size	34 KB	34 KB	0 B
Dependency size	42.73 MB	42.78 MB	🚨 +51 KB 🚨
Bundle Size Analyzer	Link	Link

sb

	Before	After	Difference
Dependency count	52	57	🚨 +5 🚨
Self size	1 KB	1 KB	0 B
Dependency size	49.21 MB	59.57 MB	🚨 +10.36 MB 🚨
Bundle Size Analyzer	Link	Link

@storybook/cli

	Before	After	Difference
Dependency count	217	221	🚨 +4 🚨
Self size	582 KB	584 KB	🚨 +2 KB 🚨
Dependency size	93.69 MB	103.97 MB	🚨 +10.28 MB 🚨
Bundle Size Analyzer	Link	Link

@storybook/codemod

	Before	After	Difference
Dependency count	186	190	🚨 +4 🚨
Self size	31 KB	31 KB	0 B
Dependency size	77.78 MB	88.06 MB	🚨 +10.27 MB 🚨
Bundle Size Analyzer	Link	Link