Hey there!
We just packaged the RC 1 of the maintenance release of 14.0.1
You can download them from the prerelease folder at:
Also it will show shortly up in the updater beta channel.
Happy testing 
The changelog of this version can be found here:
- Fixes the upload progress bar layout - 14 backport (server#11039)
- Fix markup and style of mentions in comments (server#11077)
- Do not invalidate main token on OAuth (server#11090)
- Expire tokens hardening (server#11103)
- fix js files client for user names with spaces (server#11152)
- Fix user and group listing with users that have an integer user id (server#11186)
- Fix exception class (server#11187)
- Remove posix_getpwuid and compare only userid (server#11191)
- fix check for more users in sharing dialogue (server#11201)
- Remove filter_var flags due to PHP 7.3 deprecation, fixes #10894 (server#11237)
- Fix size of icons in menus inside apps when shown as images (server#11276)
- Prevent comment being composed from overlapping the submit button (server#11277)
- replace setcookie value with ‘’ instead of null. (server#11280)
- Fix the link and anchor for the update notifications (server#11282)
- Include empty directories in the default state of acceptance tests (server#11283)
- Get permission of storage for shares (server#11287)
- Shared by info for room shares without names (server#11288)
- Fix icons cacher regex for compressed output (server#11291)
- Revert “Use APCu caching of composer” (server#11293)
- Use user locale as default in the template (server#11294)
- Fix expiration code of tokens (server#11302)
- Fix scrolling in the activity app (activity#295)
- Update config and babel for ie11 (notifications#161)
