Twilio Programmable Chat Client iOS 5.0.0

Breaking changes

• Major internals improvement (the "Sessionless" protocol)
  This improvement has some core effects:
  • SDK commands will return success or failure up to ~10% more quickly than before.
  • Real-time updates of data is now likely to arrive after the command completes.
    For example, [TCHChannel setAttributes] will invoke completion (i.e. success) while [TCHChannel attributes] still returns old value. To see the new value, we recommend waiting for an update event, e.g. in chatClient:channel:updated:TCHChannelUpdateAttributes delegate.
• Channel list page size increased from 50 to 100. Please make sure your code respects any returned page size, rather than assuming 50 (or 100).
• Some error messages have changed:
  • Declining an invite whilst already joined will return an error 50601, Invite not found instead of 50602, Cannot decline invite when already channel member.
  • Trying to leave a channel you're not part of will return error 50402, Member not found instead of 50400, User not member of channel.