I’ve been sitting on an update for an iOS app I did originally years ago. Thought I’d wait and see if Dark Mode could be implemented. Sadly, not in this release. So I updated all the deprecations (left the "dim"s alone) and built for the App Store. Then found out that Application Loader is no longer supported in the latest Xcode. Bummer. Instead of downloading an old copy of Xcode to extract a copy, I just used the command line tool to submit to iTunes Connect. Worked like a champ and my update has been approved. So 2019R2 is OK by me.
could you please expand on now you use the command line tool?
/Applications/Xcode.app/Contents/Applications/Application\\ Loader.app/Contents/Frameworks/ITunesSoftwareService.framework/Support/altool --upload-app -f "myApp.ipa" -u myAppleIDUserName -p myAppleIDUserPassword
But Apple published a helper tool: https://apps.apple.com/us/app/transporter/id1450874784
Yup. Haven’t tried Transporter yet.