Eclipse Mosquitto™ 1.6.5

Broker

• 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.
• Fix Will for v5 clients not being sent if will delay interval was greater than the session expiry interval. Closes #1401.
• Fix CRL file not being reloaded on HUP. Closes #35.
• Fix repeated "Error in poll" messages on Windows when only websockets listeners are defined. Closes #1391.
• Fix slow websockets performance when sending large messages. Closes #1390.

Client library

• Fix reconnect backoff for the situation where connections are dropped rather than refused. Closes #737.
• Fix missing locks on `mosq->state`. Closes #1374.

Documentation

• Improve details on global/per listener options in the mosquitto.conf man page. Closes #274.
• Clarify behaviour when clients exceed the `message_size_limit`. Closes #448.
• Improve documentation for `max_inflight_bytes`, `max_inflight_messages`, and `max_queued_messages`.

Build

• Fix missing function warnings on NetBSD.
• Fix WITH_STATIC_LIBRARIES using CMake on Windows. Closes #1369.
• Guard ssize_t definition on Windows. Closes #522.