- Updated release.md documentation to emphasize per-release changelog behavior
- Added fix-release-changelogs.sh script to update existing releases
- Clarified that release script already extracts only specific version changes
- Script can fix releases that incorrectly show full changelog history
The release system already works correctly - it extracts only the specific
version's changelog. The issue was with some existing releases that somehow
got the full CHANGELOG.md content instead of the extracted version.
