After Switching from Zotero 9.0.1 to the Zotero 10.0-beta.2, the plugin is marked as incompatible.
But if I update the plugin manually with exactly the same file, it becomes compatible again.

Steps to reproduce:
1) Start from Zotero 9.0.1, with the BBT plugin version 9.0.18
2) Install BBT 9.0.19 from the .xpi file ("Install Plugin From File").
3) Restart Zotero.
→ The plugin works fine in Zotero 9.0.1.
https://s3.amazonaws.com/zotero.org/images/forums/u265723/mdtro5div0bf6cbfijt8.png
4) Close Zotero and install Zotero 10.0-beta.2.
→ After starting Zotero, the plugin is disabled and marked as incompatible with the beta:
https://s3.amazonaws.com/zotero.org/images/forums/u265723/941ijl5ejp4xe7y7s0rc.png
5) Install BBT 9.0.19 from the .xpi file ("Install Plugin From File"), with exactly the same file as in Step 2.
→ The plugin is now working fine.
https://s3.amazonaws.com/zotero.org/images/forums/u265723/nv9h47k9brnc7btwryq4.png

Windows 11