Release: Prerelease 10.3.0-alpha.11

[github-actions]

This is an automated pull request that bumps the version from 10.3.0-alpha.10 to 10.3.0-alpha.11.
Once this pull request is merged, it will trigger a new release of version 10.3.0-alpha.11.
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: Addon Pseudo-states: Process all nested css rules #33605 (will also be patched)
• 🐛 Bug: Core: Avoid hanging when inferring args for recursive calls on DOM elemens #33922 (will also be patched)
• 🐛 Bug: Viewport: Prioritize story viewport globals and avoid user-global pollution #33849 (will also be patched)
• 🐛 Bug: Core: Sanitize inputs for save from controls #33868 (will also be patched)
• 🔧 Maintenance: Telemetry: Add project age #33910 (will also be patched)
• 🏗️ Build: Build: Optimize sandbox generation scripts in link mode #33880

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

10.3.0-alpha.11

• Addon Pseudo-states: Process all nested css rules - #33605, thanks hpohlmeyer!
• Core: Avoid hanging when inferring args for recursive calls on DOM elemens - #33922, thanks valentinpalkovic!
• Core: Sanitize inputs for save from controls - #33868, thanks valentinpalkovic!
• Telemetry: Add project age - #33910, thanks shilman!
• Viewport: Prioritize story viewport globals and avoid user-global pollution - #33849, thanks ia319!

[storybook-app-bot]

Package Benchmarks

^{Commit: 2f3ccdd, ran on 25 February 2026 at 11:51:18 UTC}

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

@storybook/nextjs-vite

	Before	After	Difference
Dependency count	92	92	0
Self size	1.12 MB	1.12 MB	0 B
Dependency size	22.39 MB	22.46 MB	🚨 +72 KB 🚨
Bundle Size Analyzer	Link	Link

@storybook/react-native-web-vite

	Before	After	Difference
Dependency count	124	124	0
Self size	30 KB	30 KB	🎉 -18 B 🎉
Dependency size	23.68 MB	23.75 MB	🚨 +72 KB 🚨
Bundle Size Analyzer	Link	Link

@storybook/react-vite

	Before	After	Difference
Dependency count	82	82	0
Self size	35 KB	35 KB	0 B
Dependency size	20.17 MB	20.25 MB	🚨 +72 KB 🚨
Bundle Size Analyzer	Link	Link

@storybook/vue3-vite

	Before	After	Difference
Dependency count	108	108	0
Self size	35 KB	35 KB	🎉 -24 B 🎉
Dependency size	43.74 MB	43.77 MB	🚨 +33 KB 🚨
Bundle Size Analyzer	Link	Link

eslint-plugin-storybook

	Before	After	Difference
Dependency count	20	20	0
Self size	131 KB	131 KB	🎉 -6 B 🎉
Dependency size	3.42 MB	3.50 MB	🚨 +72 KB 🚨
Bundle Size Analyzer	Link	Link