Can confirm this works with Catalina 10.5.7 and using the command line tools from Xcode 12, looks like just the Rez and ResManager. I copied the xcode 12 versions from Xcode12.app/Contents/Developer/usr/bin/Rez to Xcode10
Can confirm this works with Catalina 10.5.7 and using the command line tools from Xcode 12, looks like just the Rez and ResManager. I copied the xcode 12 versions from Xcode12.app/Contents/Developer/usr/bin/Rez to Xcode10