Last Updated: Dec 6, 2019
see the release notes
some highlight points
This release updates the ADT tool so that it correctly detected MacOS 10.15 (Catalina) and creates the IPA files with only 64-bit device support. As previously stated, the iOS packaging approach is now:
Using MacOS versions up to and including 10.14, an IPA will be created that contains a universal binary with both 32-bit and 64-bit code in it. This can be installed onto older iOS devices that do not support 64-bit, as well as newer devices.
Using MacOS 10.15 upwards, with the restriction where we cannot run 32-bit executables, the IPA file will only contain the 64-bit code. These IPA files can only be installed onto 64-bit devices; there is an updated device requirements setting that is added automatically into the Info.plist file in this case.
Using Windows, developers can continue to support 32-bit and 64-bit generation as before.
3.1.4 Bug Fixes
AIR-304: Correcting detection of Catalina OS version