I actually haven't deployed an iOS app since Air 16 about this time last year. But I needed to update an app, so i downloaded Air 19 and 20. The performance on my new iPhone6s is predictably fine. But on my iPad3 and iPhone4s, it's really bad. I was able to get a pretty solid 30fps on the 4s before with Air 16, but now it easily drops and bobs in the low 20's with any kind of touches or drags. I even disabled some functionality to speed things up and it still lags. I would love to just go back and use Air 16. However, my ANE's have updated to more recent versions. And even if they had not, I need things to run on iOS9 and give iPad Pro icons and Default screens to be accepted on the AppStore. I develop kids apps for 5 and under. Therefore, my target market uses mostly old hand-me-down devices. Flurry tells me these days that the iPad2 is the most common device among my users. So it's important for me to support old devices. And also, while the decision to move from iOS 6.1 to 7.0 makes sense statistically, it is a little disconcerting to those of us who are still targeting these older devices. I appreciate the focus on keeping Air relevant and moving forward. But I hope we could still hang on to the functionality we need to support these older devices. I think these devices and old os's will be around for a few years more - especially in my category of "5 and under". I post this mainly to let Adobe know that good performance on old devices is still very important to certain segments of this community. Our app has been featured in the AppStore for the past year (in several places). We are doing our best to make Flash and Air look like a solid development choice. Please help us do that. I also post this to ask if anyone else had issues and if they had any new tricks in squeezing some more performance out of Air.
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