Faceted Browse error message on updating to Omeka 4

I’ve updated my development system to Omeka 4, and the Faceted Browse module to version 1.3.0.

If I go to my Faceted Browse public page I get this warning message (I have error messages turned on in my dev system):

Deprecated: Return type of FacetedBrowse\Api\Representation\FacetedBrowseFacetRepresentation::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/modules/FacetedBrowse/src/Api/Representation/FacetedBrowseFacetRepresentation.php on line 18

Faceted Browse still seems to work OK - but does the above need fixing?

Thanks for noticing this. It’s an error specific to PHP 8.2. I’ve made the necessary fixes. They’ll be in the next release.