Query Latest Version Code of Uploaded Builds in Unity Editor

+1 this is important for being able to implement a decent deployment pipeline that can handle rollback with Oculus Platform Utility cli.
Can sort-of workaround this by intentionally failing setting an unused channel with a very old build in it and parsing the error.
e.g. to get the current release bundle version:

$ ./ovr-platform-util.exe set-release-channel-build --app_id <app_id> --app_secret <app_secret> source-channel ALPHA --destination-channel RELEASE > out.txt

Then regex parse the version code from out.txt
"ERROR: You are trying to add an APK with version code 12 to a release channel, but the previous APK on this channel has version code 80. The version code must be higher than the previous version code."