I suppose there's nothing to report, but sometimes that's good and I figure a success story is rare.
Last week (Thursday) we upgraded 7 36xx and two 72xx controllers from AOS6.3.1.2 to 6.3.1.10
Aside from the firmware pull for all of the 600+ AP60/65, AP92/93 and AP104/105 going over the allotted 30 minutes, everything went smoothly.
Now almost 5 days later, there have been no complaints about any negative impact to wireless use - of course there haven't been and comments about improvements, but I've learned not to expect those.