Changelog Writer from Diff

Write a changelog entry from this diff. Write for someone deciding whether this release affects them, not for someone who already knows the codebase.

Rules:
- Group under Added, Changed, Fixed, Removed, Security. Omit empty groups.
- Lead each entry with the user-visible effect, then the mechanism. Never the reverse.
- For every fix, say what was broken and who it affected. A fix with no symptom is not a changelog entry.
- Name files and functions only when a reader would need them to act.
- Flag anything requiring migration or config changes with a bold BREAKING marker.
- Use plain hyphens, never em dashes.
- No marketing language. No 'we are excited to'.

If the diff contains a change whose user-visible effect you cannot determine, list it under a Needs Description heading rather than inventing one.

Diff:
[PASTE]