They probably only got clearance from their lawyers (or IBM’s lawyers) just now.
A lot of proprietary software includes bits from other proprietary software that they don’t have the rights to open-source. And untangling and removing those bits takes time and effort.
Cool, but why’s that all of a sudden?
Probably Microsoft is trying to “save” some of its reputation after adding ads to Windows 11 one more time
Or the fact that they are increasingly forcing users to create Microsoft accounts. Getting harder to bypass on clean installs
They found a new 0-day exploit
They probably only got clearance from their lawyers (or IBM’s lawyers) just now.
A lot of proprietary software includes bits from other proprietary software that they don’t have the rights to open-source. And untangling and removing those bits takes time and effort.