Release v2.2.1-Alpha

The default setting for the CreateSession() method is to create a session with the media mode set
to relayed. In previous versions of the SDK, the default setting was to use the OpenTok Media Router
(media mode set to routed). In a relayed session, clients will attempt to send streams directly
between each other (peer-to-peer); if clients cannot connect due to firewall restrictions, the
session uses the OpenTok TURN server to relay audio-video streams.

v2.2.0-Alpha

This version of the SDK includes support for working with OpenTok 2.0 archives. (This API does not
work with OpenTok 1.0 archives.)

This version of the SDK includes a number of improvements in the API design. These include a number
of API changes:

• New OpenTok class -- The name of the main class has changed from OpenTokSDK to OpenTok.
  In the previous version, the constructor was OpenTokSDK().
  In v2.2, it is OpenTok(int apiKey, int apiSecret).

• CreateSession -- In the previous version, there were two methods to create a session:
  OpenTokSDK.CreateSession(String location) and
  OpenTokSDK.CreateSession(String location, Dictionary<string, object> options).
  These methods returned a string (the session ID).
  In v2.2, the OpenTok class includes one method, which takes two parameters (both optional):
  CreateSession(string location = "", MediaMode mediaMode = MediaMode.ROUTED).
  The mediaMode parameter replaces the p2p.preference setting in the
  previous version. The method returns a Session Object.

• GenerateToken -- In the previous version, there were two methods:
  OpenTokSDK.GenerateToken(string sessionId) and
  OpenTokSDK.GenerateToken(string sessionId, Dictionary<string, object> options)
  In v2.2, this is replaced with the following method:
  OpenTokSDK.OpenTok.GenerateToken(string sessionId, Role role = Role.PUBLISHER, double expireTime = 0, string data = null).
  All parameters, except the sessionId parameter, are optional.

  Also, the Session class includes a method for generating tokens:
  OpenTokSDK.Session.GenerateToken(Role role = Role.PUBLISHER, double expireTime = 0, string data = null).