I think Micro$oft just wants to keep 3rd party plugins (especially Plus!) busy, they want us to work hard
They change offsets and stuff for no good reason and release another version just so patches/plugins are unusable but do not tell us with a "formal letter" we can't make our plugin,
Messenger 6 on the other hand was different the api's were changed so plus had to interact differently (thus MP!2 was born)
