v0.63.3

What's Changed

• Socket buffer deadlock fix by @tomyl in #2

Full Changelog: v0.63.2...v0.63.3

v0.63.2

What's Changed

• Must use pending method for SSL sockets, not just can_read by @tomyl in #1

New Contributors

• @tomyl made their first contribution in #1

Full Changelog: v0.63.1...v0.63.2

STOMP 1.2 and heartbeat support

Only update the _alive status when sending data

Brokers like ArtemisMQ seem to only care about clients sending data as a
sign the client is still alive, not that the broker forwarded tons of
messages to the client. In order for a primarily recieve-only client to
work properly with such a broker using server-side automatic acks that
client must send heartbeats. The fact that we were setting the _alive
time also when receiving messages prevented send_heartbeat from sending
the proper heartbeats since.