- Fix v5 DISCONNECT packets with remaining length == 2 being treated as a protocol error. Closes #1367.
- Fix support for libwebsockets 3.x.
- Fix bridges potentially not connecting on Windows. Closes #478.
- Fix clients authorised using `use_identity_as_username` or `use_subject_as_username` being disconnected on SIGHUP. Closes #1402.
- Improve error messages in some situations when clients disconnect. Reduces the number of "Socket error on client X, disconnecting" messages.