Added a note emphasizing that Lockable, LockableWithKey and IndirectLockable need to precede Thing-derived classes in the superclass list of an object declaration.
Amended the DeadEndConnector template in accordance with its change in TADs 3.0.12.
Added a brief discussion of the new IFID field on versionInfo.
Added a short section on the new ActorByeTopic class.
Removed the sections on the inputManager and the mainOutputStream, since these substance of these has been moved to a new article on Some Common Input/Output Issues<-- /AHref --> in the Technical Manual.