The markdown parsing is broken/disabled for release notes. Sorry about that, I'm chasing the source of a crash that's been bringing this website down for the last couple of days.
- Improve performance of large `ComposedSectionProvider`s
- Add various convenience functions to `ComposedSectionProvider` - `sectionOffset(for:)` - `firstIndex(of:)` - `contains(_:)` - `insert(_:after:)` - `insert(_:before:)` - Fix delegate calls from `ComposedSectionProvider` sometimes providing the wrong index