I am experiencing this in 2022. I opened an old project who uses this $(CURRENT_PROJECT_VERSION) and it is still not working - did you guys have any work around? However there is a solution https://blog.tjitjing.com/index.php/2021/09/auto-increment-build-number-in-xcode-11-xcode-12.html

Actually there is a solution: https://blog.tjitjing.com/index.php/2021/09/auto-increment-build-number-in-xcode-11-xcode-12.html