2.2.1

[FIXED] Exception triggered by ping being sent when disconnected

2.2.0

No changes since 2.2.0-rc3.

Changes since 2.1.6:

[NEW] XHR streaming and polling transports were extracted from SockJS
[NEW] Reduced the number of roundtrips required by HTTP streaming and polling transports for connecting from 3 to 1
[NEW] Refactored the connection strategy to be faster and more reliable for clients using HTTP
[NEW] HTTP streaming and polling are now supported on Opera
[NEW] Dependency loader will retry fetching additional resources if they fail to load
[NEW] Added third argument to the bind method on event emitters to allow binding of context to callbacks

[CHANGED] Reduced the size of sockjs.js
[CHANGED] Added extra 1s to the cached transport timeout
[CHANGED] Changed the primary WebSocket fallback to WSS instead of HTTP

[FIXED] Issue with SockJS streaming not being able to reconnect
[FIXED] MozWebSocket is not assigned to WebSocket anymore
[FIXED] Socket listeners are always unbound after closing the connection

2.2.0-rc3

[NEW] Added third argument to the bind method on event emitters to allow binding of context to callbacks

[CHANGED] Changed the primary WebSocket fallback to WSS instead of HTTP

[FIXED] Exception when aborting timers, which caused infinite connection loop on IE8

2.2.0-rc2

[NEW] Dependency loader will retry fetching additional resources if they fail to load

[CHANGED] Refactored internals to reduce main file size by over 1KB
[CHANGED] Improved heartbeat handling for HTTP transports
[CHANGED] Removed wssHost and httpsHost options, reverted to a single domain regardless of encryption
[CHANGED] Added extra 1s to the cached transport timeout
[CHANGED] Updated the stats protocol

[FIXED] MozWebSocket is not assigned to WebSocket anymore
[FIXED] Socket listeners are always unbound after closing the connection

2.2.0-rc1

[NEW] XHR streaming and polling transports were extracted from SockJS
[NEW] Reduced the number of roundtrips required by HTTP streaming and polling transports for connecting from 3 to 1
[NEW] Refactored the connection strategy to be faster and more reliable for clients using HTTP
[NEW] Added new options - `wssHost` and `httpsHost` for encrypted connections
[NEW] HTTP streaming and polling are now supported on Opera

[CHANGED] Reduced the size of sockjs.js

[FIXED] Issue with SockJS streaming not being able to reconnect

2.1.6

[NEW] Ping on offline events to detect disconnections quicker

[CHANGED] Added an exception when handshake does not contain the activity timeout

[FIXED] Encrypted transports not being cached correctly

2.0.11

[FIXED] Encrypted transports not being cached correctly

2.1.5

[NEW] Server can suggest a lower activity timeout in the handshake

[CHANGED] Updated the protocol to version 7

[CHANGED] Transports are cached separately for encrypted connections

[CHANGED] Updated the stats protocol

[FIXED] Removed the `Protocol` variable leaking into the global scope

[FIXED] Flash check was occasionally raising exceptions on old Firefox releases

2.0.10

[CHANGED] Transports are cached separately for encrypted connections

[CHANGED] Updated the stats protocol

[FIXED] Removed the `Protocol` variable leaking into the global scope

[FIXED] Flash check was occasionally raising exceptions on old Firefox releases

2.1.4

[NEW] Added the `Pusher.prototype.allChannels` method

[NEW] Implemented the `enabledTransports` option

[NEW] Implemented the `disabledTransports` option

[CHANGED] Connections are not closed anymore after receiving an offline event

[CHANGED] Connections are still attempted, even if the browser indicates it's offline

[CHANGED] When not connected, an online event will trigger a new connection attempt immediately

[CHANGED] Updated the stats protocol