* The new implementation is NOT compatible with the old implementation (or any other implementation I know).
* Added a Message class to represent a Objective-C message.
* Added a MSG() macro that allows creation of Message instances with intuitive syntax (e.g. Message *m = MSG(addObject:@"a"); // An autoreleased message).
* Completely rewrote all methods to use the new Message object. This eliminates trampolines completely, allows new optimizations and makes the syntax much more natural.
* CKWeakSet is no longer included with the framework.
* The new iteration methods don't handle non-object return values.
* Removed HOMObjCValue.
* Removed NSInvocationAdditions.
* Removed HOMMethodSignatureAdditions.
* HOMObjectWrapper was replaced with HOMIteratedArgument.
* Removed the HOM and HOMIteration protocols.
* Renamed HOMHelperFunctions to HOMUtilities.
* New ID() macro (see HOMMacros.h).
* Added two macros - DP_SUBCLASS_MUST_IMPLEMENT and DPAssert() to HOMUtilities.h.
* Cleaned up HOMUtilities and added some more (unsupported) useful stuff.
* Iteration methods of NSSet now use their own implementation (rather than NSArray's) and return sets instead of arrays.
* Iteration methods of NSDictionary now use their own implementation (rather than NSArray's) and return dictionaries instead of arrays.
* Optimized iteration methods of NSArray, NSSet and NSDictionary (run HOMSpeedTest to see a comparison between HOM and "traditional" iterations).
* Combined speed testing with unit testing and removed the old unit tests.
* Replaced -single(Select/Reject)Where: with -(select/reject)SingleWhere: which accepts a variable number of messages.
* Replaced -select: and -selectWhere: with -selectWhere: which accepts a variable number of messages.
* Replaced -reject: and -rejectWhere: with -rejectWhere: which accepts a variable number of messages.
* Added -rejectSingleWhere:.
* Added -[NSObject repeatOf:for:], -[NSObject for:from:to:do:] and -[NSObject receive:].