Jellyfin 10.8.11 is here! Forum announcement: https://forum.jellyfin.org/t-new-server-web-hotfix-release-10-8-11
GitHub release notes: https://github.com/jellyfin/jellyfin/releases/tag/v10.8.11
Windows and macOS installers already available on our main site. Go and get it!
The webOS app is just a wrapper for jellyfin-web, so any changes to web will be reflected in the webOS app without it needing an update. As long as you keep your server up to date, of course, since jellyfin-web is ran from there.