I get
flarum.ERROR: TypeError: FoF\Terms\Extenders\UserPoliciesRelationship::__invoke(): Argument #1 ($serializer) must be of type Flarum\Api\Serializer\UserSerializer, Flarum\Api\Serializer\BasicUserSerializer given, called >
Stack trace:
after updating.
Reverted to 1.8.11 with a snapshot.
Edit: Did update again and disabled fof/terms (1.5.0) and forum seems to work besides only showing 1.8.11 version in the admin backend (php flarum info shows 1.8.12).
To update I used:
composer update --prefer-dist --no-plugins --no-dev -a --with-all-dependencies
php flarum migrate
php flarum cache:clear