[liuliu-dev]

Remove sx in stories and docs for the SubNav and Textarea component.
Closes #5817

• sx usage , tracking here: https://github.com/github/primer/issues/5827

[changeset-bot]

⚠️ No Changeset found

Latest commit: 9418d2c

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[github-actions]

👋 Hi, this pull request contains changes to the source code that github/github depends on. If you are GitHub staff, we recommend testing these changes with github/github using the integration workflow. Thanks!

[github-actions]

size-limit report 📦

Path	Size
packages/react/dist/browser.esm.js	89.75 KB (0%)
packages/react/dist/browser.umd.js	89.89 KB (0%)

[primer-integration]

👋 Hi from github/github-ui! Your integration PR is ready: https://github.com/github/github-ui/pull/2539

[primer-integration]

🟢 ci completed with status success.

[Copilot]

Pull Request Overview

This PR removes deprecated sx prop support from SubNav and Textarea components as part of ongoing cleanup efforts to eliminate the sx prop from Primer React components. The changes are focused on documentation and Storybook configuration updates rather than functional code changes.

Key changes:

• Remove sx prop documentation from component docs.json files
• Remove sx from Storybook argTypes configuration
• Add changeset for patch release

Reviewed Changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated no comments.

File	Description
packages/react/src/Textarea/Textarea.stories.tsx	Remove sx from Storybook argTypes configuration
packages/react/src/Textarea/Textarea.docs.json	Remove deprecated sx prop from component documentation
packages/react/src/SubNav/SubNav.docs.json	Remove deprecated sx prop from SubNav, SubNav.Link, and SubNav.Links documentation
.changeset/quick-guests-ask.md	Add changeset documenting the removal of sx support

[joshblack]

LGTM! Just left a comment around the changeset

[joshblack]

Since these are just docs/stories changes I think you're okay to not include a changeset if that helps 👀