- 🇨🇦Canada bisonbleu
Needed this on an old D8 website which I'm upgrading. Path applies cleanly. When done, in mbase.info.yml, at the very end of the file, simply add this:
# D9 compatibility
core_version_requirement: ^8 || ^9So that
core: '8.x'
will be overridden (also do this in any custom theme that is a sub-theme of mbase). With this, upgrade_status.module gives me a green bill, i.e. I can proceed to upgrade to Drupal 9.