Theme at 1.7.0 which is the latest version.
Version 2.0 code was committed to GitHub master branch but is a WIP, and just like you said, it hasn’t been released.
How are you managing updates? If you are using GitHub updater then it’s probably something like:
GitHub Updater Version 9.0.1
WP 5.3
Should I “Enable Branch Switching” in GitHub Updater tab?