Reason for release: Bug fixes for the 2.0.0 Stable Channel release on April 29.
June 2, 2015: 22.214.171.124 published to Stable, Beta, and Alpha updater channels
See the corresponding Beta release thread (now closed) for the earlier history of this service release: http://forums.xamarin.com/discussion/41746/beta-service-release-xamarin-mac-2-0-1-bug-fixes-for-2-0-0/p1
You can downgrade back to the previous Stable versions (from April 29) by manually reinstalling each old package (see also the article about downgrading). The links to the previous Stable versions are:
If needed, you can also downgrade back to the older versions (from before April 29) by manually reinstalling each old package. See the "Previous versions, downgrading" section on the previous Stable release thread for the older downgrade links.
This first post will be updated regularly.
Hopefully this thread will help answer "what might break if I update to this release?"
If you find a new problem that is specific to this version, please file a bug report (if this link redirects to the top-level
https://kb.xamarin.com/ page the first time you click it, try clicking it once more).
Please discuss older bugs that are unchanged in this release compared to the previous Stable version in Bugzilla instead.
Of course for questions and discussions about topics other than bugs, feel free start new forum threads.
EDIT June 10: Correct the version numbers in the "previous versions" section.