Write a Design System Changelog Entry

Write a clear design system changelog entry for this change:

Component or token: [NAME]
Change type: [ADDED / UPDATED / DEPRECATED / REMOVED]
What changed: [SUMMARY]
Why it changed: [REASON]
Breaking change: [YES / NO]
Migration steps: [STEPS OR N/A]
Affected surfaces: [PRODUCT AREAS]
Owner / PR link placeholder: [OWNER]

Requirements:
1. Write for product designers and front-end engineers scanning a changelog.
2. Separate visual behavior, API / props, and accessibility notes.
3. If breaking, include a minimal before/after example.
4. Keep the entry under 200 words unless migration needs more detail.
5. Avoid vague words like "improved" without saying what improved.

Deliverables:
1. Changelog entry in markdown.
2. A short Slack announcement version (under 500 characters).
3. A checklist of files or pages that should be audited after adopting the change.