We have published an Omeka S theme using Bootstrap 5 at the following location.
https://github.com/ldasjp8/Omeka-S-theme-Bootstrap5
Based on suggestions we received, we added creation date/update date as shown below.
Additionally, as Omeka S version 4 has been released as shown below, we made it compatible.
https://forum.omeka.org/t/omeka-s-version-4-0-0/16502
However, since there were methods that could not be used in common between version 3 and version 4 during the update, we created separate releases for version 3 and version 4.
- For version 3
https://github.com/ldasjp8/Omeka-S-theme-Bootstrap5/releases/tag/3.0.0
- For version 4
https://github.com/ldasjp8/Omeka-S-theme-Bootstrap5/releases/tag/4.0.0
Going forward, we plan to primarily make modifications for version 4, but I hope this is helpful.