All of our apps are using GPU rendering mode (not direct mode -- they use the traditional DisplayList), and I'm noticing an issue when trying to update older apps made in AIR 18 to AIR 21 or 22. 

When testing on the Nexus 7 tablet (original 2012 version), app performance is terrible after updating to AIR 21 or AIR 22, when it was previously as smooth as can be using AIR 18.  It seems that GPU rendering mode is no longer working on this device, since it's performing more like the CPU mode.  In Adobe Scout, I see a large amount of time each frame (45ms+) devoted to "Rasterizing edges" and "Copying to screen", when these were never even mentioned when profiling in AIR 18.

Under "Session Info > Machine" in Adobe Scout, with the AIR 18 app I see "GPU Vendor", "GPU Renderer", "GPU Version", etc. listed on this tab.  When checking the AIR 21 or AIR 22 app, none of this data is shown (only CPU info).

Does this device no longer support GPU mode for some reason in the newer versions of AIR?  We never had a single problem with GPU mode on this device, so I'm not sure why this would no longer be working in the newer versions of AIR.  Unfortunately, we're forced to update all of our Android apps to AIR 21+ because of the OpenSSL issue, so there's no option of leaving the AIR 18 apps in place.

Is there also a list somewhere detailing which devices no longer support GPU mode (especially ones that previously did, but no longer do)?  The documentation only mentions to check the release notes for devices that don't support it, but there's no information in the release notes pertaining to this.