[stable27] fix: lower threshold for system address book sync by @backportbot-nextcloud in https://github.com/nextcloud/server/pull/41671
[stable27] fix: Also cleanup orphaned shares user cannot be found anymore by @backportbot-nextcloud in https://github.com/nextcloud/server/pull/41643
[stable27] fix(dav): Avoid date diffing if PHP is buggy by @backportbot-nextcloud in https://github.com/nextcloud/server/pull/41730
[stable27] fix: Avoid triggering a defered sidebar open if openFile is already handling that by @juliushaertl in https://github.com/nextcloud/server/pull/41636
[stable27] fix(scheduling): don't send iMIP emails to rooms / resources by @backportbot-nextcloud in https://github.com/nextcloud/server/pull/41315
[stable27] fix(files_sharing): fix sharing tab translations by @Fenn-CS in https://github.com/nextcloud/server/pull/41736
[stable27] reuse sharing disabled state when listing folder content by @backportbot-nextcloud in https://github.com/nextcloud/server/pull/41462
[stable27] do not write htaccess file if disk space is too low by @backportbot-nextcloud in https://github.com/nextcloud/server/pull/41608
[stable27] fix(files_versions): Check for user and owner before call getUserFolder by @solracsf in https://github.com/nextcloud/server/pull/41786
fix(ui): Do not close all menus on right click by @ChristophWurst in https://github.com/nextcloud/server/pull/41812
Nextcloud 27 : Replace "Update" with "Edit" in share dialog by @Jerome-Herbinet in https://github.com/nextcloud/server/pull/41734
[stable27] Improve share logic for enforced password & expiry date by @Fenn-CS in https://github.com/nextcloud/server/pull/41936
[stable27] fix(TemplateManager): Bail early if templatedirectory is empty by @backportbot-nextcloud in https://github.com/nextcloud/server/pull/42002
[stable27] Fix/text processing types covariant stable27 by @marcelklehr in https://github.com/nextcloud/server/pull/41997
fix(security): Update expiration date in security.txt by @nickvergessen in https://github.com/nextcloud/server/pull/42004
[stable27] Serve .flac audio files by @backportbot-nextcloud in https://github.com/nextcloud/server/pull/41557
[stable27] fix: Fix linkToOCSRouteAbsolute() without index.php and with subfolder by @backportbot-nextcloud in https://github.com/nextcloud/server/pull/41626
[stable27] fix: Delete ghost versions of non-existing files by @backportbot-nextcloud in https://github.com/nextcloud/server/pull/41296
[stable27] fix: Show error message when CSRF check fails at login by @ChristophWurst in https://github.com/nextcloud/server/pull/41970
[stable27] feat(LDAP): implement IIsAdmin interface by @blizzz in https://github.com/nextcloud/server/pull/41813
fix: Update @nextcloud/dialogs to 4.2.2 to fix translations of FilePicker by @susnux in https://github.com/nextcloud/server/pull/42034
[stable27] fix(backupcodes): Remove old notifications before creating a new remi… by @backportbot-nextcloud in https://github.com/nextcloud/server/pull/41451
[stable27] Fix root mounts not being setup in some cases by @backportbot-nextcloud in https://github.com/nextcloud/server/pull/41090
[stable27] fix(systemreport): Mask onlyoffice secret as sensitive by @nickvergessen in https://github.com/nextcloud/server/pull/42081
[stable27] fix: Properly fetch version from shared files by accessing the owner storage version by @backportbot-nextcloud in https://github.com/nextcloud/server/pull/42075
[stable27] fix(updatecheck): Don't wait 120s for a response of updater.nextcloud… by @nickvergessen in https://github.com/nextcloud/server/pull/42078
[stable27] fix(bruteforce-protection): Don't throw a 500 when MaxDelayReached is… by @nickvergessen in https://github.com/nextcloud/server/pull/42083
[stable27] fix(security): Handle idn_to_utf8 returning false by @nickvergessen in https://github.com/nextcloud/server/pull/42085
[stable27] Fix AppSettingsController.php overwriting currentLanguage by @solracsf in https://github.com/nextcloud/server/pull/42063
fix(dist): assets were not compiled by @blizzz in https://github.com/nextcloud/server/pull/42091
27.1.5 RC1 by @blizzz in https://github.com/nextcloud/server/pull/42015
[stable27] fix(security): Update CA certificate bundle by @nextcloud-command in https://github.com/nextcloud/server/pull/42188
27.1.5 by @blizzz in https://github.com/nextcloud/server/pull/42147

Full Changelog: https://github.com/nextcloud/server/compare/v27.1.4...v27.1.5