This is a maintenance release to fix bugs.
- Fixes an XSS vulnerability when quoting posts and comments.
- Fixes an XSS vulnerability when lightbox images are built.
- This release also contains the patch from 4.5.4 that resolves a security issue with the Downloads REST API
- Fixed an issue moving Icons & Logos to a new storage handler when one or more of the images is broken.
- Fixed an issue when logging in with LinkedIn.