This is the Search API Attachments 1.18 release, fixing one bug.
The alone commit merged since release 1.17:
* Issue #3004208 by _wdm_, langelhc, izus: isFileIndexable halts indexing with bad content (missing file)
On entity definition removed the entity reference nested fields functionality. Add "uuid" claim to token. Make the query for files like Drupal does. Remove from view serialiser default image for a content type.
Dev release
Coding standards has been corrected.
It is recommend to install this beta version on a clean Drupal installation, i.e. with no alpha versions installed or previously installed.
Issue fixes:
https://www.drupal.org/project/admin_content_notification/issues/3007555
https://www.drupal.org/project/admin_content_notification/issues/3016410
https://www.drupal.org/project/admin_content_notification/issues/3016454