My M5 iPad Pro is still indexing after updating to iPadOS 27 Beta 1 6 hours after the keynote. I say that to suggest that the battery life I'm seeing isn't still as good as it might be on the first developer beta when indexing is over. That being said, I had the worst battery life on iPadOS 26 since about 26.3 or .4. I am hopeful that 27 beta 1 will be better than 25.5. I'll keep my fingers crossed. I haven't seen too many bugs, but I have noticed that the new Siri app, isn't reliable. Sometimes it seems to lock and even killing the app doesn't unlock it. The new Siri is super impressive to me though, so much better than the old Siri. I'm amazed at what it can do.