Adobe today released an update to address crashes and performance issues in the 6.2 and CC 2015.2 releases of this past Monday. The update is labeled 6.2.1 and CC 2015.2.1.
I believe that this release has a lot of promise to address both the crashes (mostly on Mac) and the performance lags resulting from how Lightroom was scanning your hard drive for potential folders to show on the new “Add Photos” screen. While I withdraw my blanket warning to not update, I’d still say that it can’t hurt to wait and see how it goes for other users.
UPDATE 10/12/15: While the number of complaints has decreased substantially with this update, some users are still experiencing stability issues. Unless you need the new camera support or lens profiles added in 6.2, I’d suggest continuing to hold off on updating.
If you do wish to update, if Lightroom doesn’t prompt you to update, go to Help>Updates. If you are a CC subscriber, you can also update from your CC app.
If you didn’t read about what’s new in 6.2, read my blog post from Monday. In addition to new camera support, new lens profiles, and bug fixes, all users will see a redesigned import process, and CC subscribers will see dehaze added as a local adjustment.