I put it on last night. Seems reasonably stable, but tbh it's a huge let-down in terms of new features. I tried going back to 8.3 this morning, but because it made a new backup with 9 after upgrading, it can no longer restore the backup (says the backup is for a newer version of the OS), so it looks like I'm stuck with 9 now.
CPU went absolutely nuts for the first 20 minutes or so after the upgrade completed: case extremely hot, visibly chewing through the battery. It has settled down, but battery is far worse than it was on 8.3. Currently on 45%, whereas under 8.3 I would've been at 70+% at this time of day.
Well, I failed to roll back to 8.3. My backup somehow got "upgraded" to v9, meaning it wouldn't let me restore it if the phone has 8.3 on it. So I'm stuck on 9.
Battery consumption is horrendous on 9 Beta 1. I'm not using it any more than usual, simply because there is virtually nothing new!!! In fact, I'm now terrified of touching it, because I keep forgetting to bring a cable into work, and I'm now at 32%, even though I turned off all background processing this morning. It's going to be a very frustrating few weeks until a better beta gets released.
Managed to restore an iPhone backup from mid-May, which means I am super happily back on iOS 8.3! What a relief! My battery died yesterday at 6pm, and all day I had it on "low battery mode", which disables all background processing, and even that made little difference.
Just goes to show how addicted I am to my smartphone, that the idea of running out of juice creeps me out.
It's not really for public use though... it's for developers to test apps on. Even if you do want to jump on the train I wouldn't bother for the first three betas. In fact most of the good stuff doesn't arrive until GM.
I'm telling you, I've never used the booking.com app nor had it installed and I still have the problem. But thanks for the suggestion of Googling, very helpful.
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