9.16.0 (2026-06-08)
Features
Bug Fixes
- align FDv2 goodbye event with spec (reason-only) (#422) (84b442d)
- honor server-directed FDv1 Fallback Directive in initializer phase (#423) (7c49bc0)
- Keep booleans and numbers distinct in the in operator (#433) (da595ab)
- Replace Python 2-style ABC patterns with Python 3 equivalents (22b8fe5)
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