v2.4.0-rc.1

Added

• Streams - Filtering on any header #1053
• Show active arguments on queues & exchanges #1072
• Install instructions for Archlinux #1001

Changed

• Parts of LavinMQ is now multi threaded, many structures are now thread safe
• Requires Crystal 1.16 and -Dpreview_mt -Dexecution_context to run
• Purgeing a queue without unacked messages is now instant #1083
• Run etcd lease keepalive in a separate thread
• lavinmqperf throughput is multithreaded
• Drop global ACL caches and keep one write cache only per Client
• Remove ws.html and ws-mqtt.html

Fixed

• Allow requeuing of MQTT messages when delivery fails #1081
• Fixed routing_key or exchange with length 255 causing an ArithmeticOverflow #1094
• Append to x-received-from instead of replacing #1084
• Don't allow invalid binding arguments to ConsitentHashExchange #1089
• Drop msg on requeue if above delivery_limit #996