[stable30] fix(caldav): limit property length by @backportbot in https://github.com/nextcloud/server/pull/47422
[stable30] fix(migration): Add missing migration attributes by @backportbot in https://github.com/nextcloud/server/pull/47437
[stable30] fix: correct documentation for mail provider by @backportbot in https://github.com/nextcloud/server/pull/47454
[stable30] fix(dashboard): Adjust widget border radius by @backportbot in https://github.com/nextcloud/server/pull/47434
[stable30] fix(mailer): Call to custom mail_template_class by @backportbot in https://github.com/nextcloud/server/pull/47475
[stable30] fix(flow): cannot set custom user agent by @backportbot in https://github.com/nextcloud/server/pull/47483
chore(deps): bump webdav from 5.7.0 to 5.7.1 by @dependabot in https://github.com/nextcloud/server/pull/47219
[stable30] fix(files): Reset drop notice on firefox by @backportbot in https://github.com/nextcloud/server/pull/47498
[stable30] fix(dav): Allow apps to get unshares for DAV resources by @backportbot in https://github.com/nextcloud/server/pull/47512
[stable30] fix(Router): Load attribute routes of all apps when not app is specified by @backportbot in https://github.com/nextcloud/server/pull/47518
[stable30] feat: Delegate is-encrypted handling to the e2ee app by @backportbot in https://github.com/nextcloud/server/pull/47514
[stable30] fix(files): fix list gap at bottom by @backportbot in https://github.com/nextcloud/server/pull/47539
[stable30] ci: Reduce required run time by @backportbot in https://github.com/nextcloud/server/pull/47545
[stable30] fix(logger): ignore session logging during setup by @backportbot in https://github.com/nextcloud/server/pull/47550
[stable30] fix(files): Adjust margin at the file list bottom by @backportbot in https://github.com/nextcloud/server/pull/47492
[stable30] chore(files): Adjust wording for file type filter by @backportbot in https://github.com/nextcloud/server/pull/47499
[stable30] fix: gracefully handle unexpected exif orientation types by @backportbot in https://github.com/nextcloud/server/pull/47533
[stable30] [TaskProcessing] Add manager::runTask method by @backportbot in https://github.com/nextcloud/server/pull/47542
[stable30] feat: Improve encryption mode detection in occ info:file by @backportbot in https://github.com/nextcloud/server/pull/47559
[stable30] feat: add negative compare-and-delete to imemcache by @backportbot in https://github.com/nextcloud/server/pull/47398
[stable30] Transparent* database sharding by @backportbot in https://github.com/nextcloud/server/pull/47561
[stable30] fix: Filename validation should only forbid create and update by @backportbot in https://github.com/nextcloud/server/pull/47583
[stable30] fix(migration): Correctly sort migrations by version number by @backportbot in https://github.com/nextcloud/server/pull/47588
[stable30] feat(webhook_listeners): Enable the app by default by @backportbot in https://github.com/nextcloud/server/pull/47587
[stable30] fix(files_versions): Migrate version name dialog from NcModal to NcDialog by @backportbot in https://github.com/nextcloud/server/pull/47436
[stable30] fix(db): Increase log level for very slow transactions by @backportbot in https://github.com/nextcloud/server/pull/47528
[stable30] "Line" manager instead of "Account" manager by @backportbot in https://github.com/nextcloud/server/pull/47543
[stable30] fix(provisionning_api): Remove parameters that are not set into template by @backportbot in https://github.com/nextcloud/server/pull/47574
[stable30] Fix npm audit by @nextcloud-command in https://github.com/nextcloud/server/pull/47471
[stable30] feat(templates): add support for checkboxes in template filler by @juliushaertl in https://github.com/nextcloud/server/pull/47564
[stable30] fix(files_sharing): Make share labels nullable by @backportbot in https://github.com/nextcloud/server/pull/47593
[stable30] fix(test): Fix provisioning enabled apps by @backportbot in https://github.com/nextcloud/server/pull/47597
[stable30] fix: Trusted server icon recovery without addressbook change by @backportbot in https://github.com/nextcloud/server/pull/47429
[stable30] fix: optimise getWrongShareOwnership query by @backportbot in https://github.com/nextcloud/server/pull/47578
[stable30] fix(files): Respect "Show hidden files" setting in tree by @backportbot in https://github.com/nextcloud/server/pull/47442
[stable30] fix(user_status): add link to Availability page if user set predefined 'Vacationing' by @backportbot in https://github.com/nextcloud/server/pull/47505
[stable30] fix: use empty template by default when pressing enter by @backportbot in https://github.com/nextcloud/server/pull/47404
[stable30] fix(files): Correctly check for already used names when creating new folder by @backportbot in https://github.com/nextcloud/server/pull/47547
[stable30] fix(files): Remove margin and width to not break layout by @artonge in https://github.com/nextcloud/server/pull/47607
[stable30] fix(DB): set sharding parameters only when intended by @blizzz in https://github.com/nextcloud/server/pull/47612
30.0.0 RC3 by @blizzz in https://github.com/nextcloud/server/pull/47603

Full Changelog: https://github.com/nextcloud/server/compare/v30.0.0rc2...v30.0.0rc3