It is still a beta release so there is still a very likely possibility that there could be some issues that need to be resolved before the final release in November. Installing beta software is done at your own risk!Is safe to update on beta2?
Absolutely agree, but I am very happy to confirm that Mail is much more stable on beta 2. I installed this morning and so far have had no problem with my 7 (!) pop accounts, which up to this point on Beta 1 would cause Mail to crash immediately.