Enabling WebSocket compression across Pusher Channels socket infrastructure

Pusher is implementing WebSocket compression across its socket infrastructure starting on October 18, 2023, necessitating the deprecation of outdated WebSocket protocol versions, while maintaining support for version 13 and draft protocols hixie-75 and hixie-76. WebSocket compression, facilitated by RFC 7692, reduces network traffic by compressing repetitive JSON message data using the DEFLATE algorithm, provided both client and server support it. Most modern browsers and devices already support WebSocket protocol version 13 and its compression capabilities, making the transition seamless for users with updated systems. Pusher assures that if a client does not support compression, message delivery will remain unchanged and advises users to ensure their clients use the latest software versions for optimal compatibility.