1.3 - April 2012

Switched to using NSJSONSerialization by default for JSON parsing (see JSON notes).
Bubble up any authorization connection errors to the Pusher delegate (#30)
Ensure channel auth delegate methods are fired when authorization fails. (#30)
Ensure connections can always be re-opened after a failure. (#32)
Handle members added to a presence channel that have no user info. (#31)

1.2 - February 2012

Changed backend socket library to SocketRocket
PTPusherEvent objects have a timeReceived property.
Updated to the latest version of JSONKit.
Re-added armv6 archicture for iOS 4.0 - 4.2 support.
HTTP authorization for private/presence channels now accepts a HTTP 201 status as well as 200 (#23).
Fixed triggering of client events (would previously send the channel name as the event name).
Fixed retain cycle between PTPusher and PTPusherChannel.
OSX framework is now called Pusher.framework.
Project has been converted to use ARC (Automatic Reference Counting).
All event binding methods return a PTPusherEventBinding object, which can be used to remove bindings (see "Removing Bindings" below).
Channels should be removed from the cache when they are unsubscribed (#25).
Subscribing to multiple private channels would fail as only the first channel would send the authorization request (#26).
Wait for handshake and socket ID to be received before attempting to connect to channels as the socket ID is required for private/presence channel authorization.