❗ Pre-merge checklist

Please ensure these items are checked before merging.

✅ Preliminary checks

• All CI checks pass on this pull request
• Docs and Storybook previews open in a browser

🔌 Integration smoke tests

Dotcom

• Performed successful integration test with github/github-ui, as a primary consumer of Primer Brand
  • Install RC: npm install @primer/react-brand@{RC_VERSION} -w @github-ui/swp-core
  • Run development server
  • Manually verify release-specific bugfixes and/or features on the following pages:
    • /home
    • /features/copilot
    • /features/copilot/plans
    • /features/copilot/tutorials
    • /features/preview
    • /enterprise
    • /enterprise/contact
    • /security/advanced-security
    • /education
    • /mobile
    • /about/diversity
    • /newsroom
    • /resources/articles
    • /resources/articles/software-development
    • /resources/articles/software-development/what-is-cloud-native
    • /resources/whitepapers
    • /resources/whitepapers/how-the-c-suite-can-lead-ai-innovation
    • /solutions
    • /solutions/use-case/
    • /solutions/use-case/devops
    • /contentful-lp-tests/flex-example-dark (requires a flag)
    • /contentful-lp-tests/flex-example-light (requires a flag)
  • Manually compare production site to local instance for any non-release specific regressions

Subdomain sites

• Performed successful integration test with githubuniverse.com, as a Tier 1 consumer of Primer Brand outside of the monolith.

  • Run development server and verify no new console warnings or regressions are found
  • Run local build to verify the release compiles correctly
  • Manually performed side-by-side comparison with production

• Performed successful integration test with https://resources.github.com/, as a Tier 1 consumer of Primer Brand outside of the monolith.

  • Run development server and verify no new console warnings or regressions are found
  • Run local build to verify the release compiles correctly
  • Manually performed side-by-side comparison with production

Sandboxes

• Works in CodeSandbox or StackBlitz
  • New components render successfully
  • (optional) Tested in both SPA and SSR apps if release contains build changes

🤔 Cross-check (aka sanity test)

• Release notes accurately describe the changes made
• All bugfixes in this release have resolved their corresponding issues
• The issues for reverted PRs have been re-opened and commented on with a link to the reverted PR
• No noticeable regressions or side-effects have not been introduced as a result of changes in this release.
  • If they have, determine severity of the issue and consider hotfixing

After tests

• Add report summary of your findings, including any images. Use following template as a guide:

  #### Smoke test results
  
  - Feature 1 🟢 🟡 🔴 (choose one, depending on success levels)
  
    {insert screenshot}
  
  Release testing status: Ready to release 🟢 | Paused 🟡 🔴 (choose one and provide reason)

🚢 After merge

• Issue release comms in primer brand Slack channel
• Add the preview deployment's link to releases as a way of permalinking to old version's docs. Example

🟢 No design token changes found

🟢 Bundle size report

🟢 No unit test coverage changes found

All components and hooks with tests maintain the same coverage as the main branch.

🟢 No visual differences found

Our visual comparison tests did not find any differences in the UI.

Smoke test results

JSON color map export 🟢

Verified JSON color map is correctly exported. RC export: https://app.unpkg.com/@primer/brand-primitives@0.71.0-rc.719f204c/files/lib/design-tokens/json/colors.json

RiverBreakoutTabs + Card layout adjustments 🟢

All the adjustments to RiverBreakoutTabs and Card render as expected.

Tiles density 🟢

Verified that Tiles component now correctly renders 4 items on small viewports with smaller icons and 6 on medium viewports.

Small	Medium

Verified

Release testing status: Ready to release 🟢