- Removes Erlang/OTP 20.3 support and enforces 21.3+ with forward compatibility to Erlang 23 – a breaking change.
- Adds usability and performance enhancements: more frequent GC in management stats DB, default binding‑deletion key alignment, new federation "resource cleanup mode", and improved HTTPS trust‑store handling.
- Includes numerous bug fixes across core, management, federation, shovel, and trust‑store plugins; marks the final generally supported 3.7.x release now under extended support.