Log Message:
Update to15.0.0

Changelog:
Changes

Nextcloud 15 introduces social networking, next-gen 2-factor authentication and \ 
innovative collaborative document editing abilities. This release also adds a \ 
new design and grid view, workflow features and 2-3x faster loading performance.

As this is a major release, the changelog is very long. Find an overview of what \ 
has been improved in this series of blog posts:

    Avoid logging of "Partial search results returned: Sizelimit \ 
exceeded..." (server#12292)
    Enable sorting in file picker (server#12350)
    15.0.0 Beta 2 (server#12355)
    Fix the warning appearing in the admin section when mail_smtpmode is not \ 
configured (server#12401)
    Prefix icon variables with app name to avoid conflicts (server#12421)
    Shorten index name of calendar changes table (server#12447)
    Fixes dav share issue with owner (server#12458)
    Fix string doctype casing (server#12466)
    Show thumbnail on rename (server#12467)
    Remove conflicting multiselect (server#12468)
    Actually return the user when creating version dav nodes (server#12472)
    Rollback to default list view (server#12474)
    Add welcome bot (server#12476)
    Fix navigation layout for items that are added on a re-render (server#12481)
    Fix login loader position and theming support (server#12483)
    Fix loader colours for better visibility (server#12484)
    Format Nextcloud Talk clients sessions. (server#12485)
    Remove unused svg api route (server#12487)
    Only use width and opacity for transition (server#12489)
    Fix share link password input (server#12491)
    Return the correct value when trying to get a non existing item from cache \ 
by id (server#12494)
    Fix login primary colour and feedback (server#12495)
    Fix revert icon position on theming settings (server#12496)
    Forward object not found error in swift as dav 404 (server#12500)
    Make number of file list entries depending on the width for grid view \ 
(server#12515)
    Fix loading of files external templates file (server#12517)
    Fix loading of .woff2 files in .htaccess (server#12518)
    Fix updatenotifications display, dependencies and csp (server#12525)
    Allow to hide download option for folders shared by link (server#12531)
    Fix redirect page design details (server#12539)
    Bearer tokens are app token (server#12543)
    Handle permission in update of share better (server#12544)
    Respect the disabled setting for lost_password_link (server#12552)
    Allow empty string in get absolute url (server#12553)
    Do not switch to root folder if filelist is already shown (server#12554)
    Apply border to primary button if on log in page (and not in a dark \ 
container) or if in header (server#12558)
    Better header navigation display (server#12559)
    Do not show tab headers marked as hidden (server#12570)
    Make connectivity check domains configurable (server#12571)
    Fix rendering of the sidebar in Files app (server#12577)
    Fix navigation more menu background for dark theme (server#12580)
    15.0.0 RC 1 (server#12581)
    Do not clear new user form on failure (server#12587)
    Add explanatory text to admin twofactor settings (server#12589)
    Fix Typo in Original English String and All Translations (server#12615)
    Extend anonymous options to work on every dav url (server#12638)
    Fix count on string (server#12683)
    Add interface to allow storages from opting out of encryption (server#12692)
    Make acceptance tests for comments more robust (server#12696)
    Add acceptance tests for sharing files and folders with another user \ 
(server#12700)
    I changed the width of the srollbar to make it a bit bigger (server#12712)
    Open the updater via a POST form submit instead of eval the JS code d... \ 
(server#12713)
    Fix folder path containing leading slash when getting mount root by id \ 
(server#12714)
    Add capabilities for multiple share links (server#12718)
    Remove old button to submit the apppassword login (server#12723)
    Fix versions sidebar issues (server#12730)
    Don't require Same Site Cookies on accessibility app assets (server#12731)
    Date title to linkshare (server#12733)
    Add pipe mode for sendmail (server#12736)
    Set Referrer-Policy also in addSecurityHeaders() (server#12737)
    Polishing fixes (server#12740)
    Fix the loader position and the focus state on the login button (server#12741)
    Add check for missing .woff2 rule in Nginx via setup check (server#12742)
    Update compatible versions for cloud federation api (server#12744)
    Fix cannot set 0 as value on files_external through OCC command (server#12746)
    15.0.0 RC 2 (server#12755)
    Parse activity when a user self-unshares a file (server#12756)
    Polishing of various modal dialogs (server#12784)
    Fix activatable/deactivatable 2fa provider interface typos (server#12805)
    Only run the AnonymousOptionsPlugion on Anonymous requests (server#12811)
    Fix the system address book (server#12816)
    PHP module is named mbstring (server#12825)
    Unshare from mail activity is missing (server#12828)
    Fix layout of "i" in admin settings of federated sharing (server#12829)
    PHP 7.0 is end of life (server#12830)
    Do not update child all child shares on group share update (server#12833)
    Validate all rich objects (server#12836)
    Add setup check for recommended PHP modules (i.e. Imagick, intl) (server#12837)
    15.0.0 RC 3 (server#12847)
    Make a button out of 'What's new' so it's obvious it can be clicked on \ 
(server#12848)
    Fix missing click event on update button (server#12849)
    Add setup check for pending bigint conversion (server#12853)
    No user enumeration on DAV if disabled (server#12856)
    Only execute query in propagateChange once (server#12861)
    Fix password confirmation lib for ie11 (server#12863)
    Log and continue on Dav reader failure (repair uid) (server#12867)
    Emit write update only once on touch (server#12868)
    Do not show general warning on free space error (server#12880)
    Set 3rdparty to pr187 (server#12882)
    Fix logo path in non-themed instance (server#12908)
    Fix unread comment icon not shown for the sharee (server#12913)
    Bump to 15.0.0 final (server#12959)
    Bump lukasreschke/id3parser from 0.0.1 to 0.0.3 (3rdparty#118)
    Bump stecman/symfony-console-completion from 0.7.0 to 0.8.0 (3rdparty#119)
    Bump guzzlehttp/guzzle from 6.3.0 to 6.3.3 (3rdparty#120)
    Bump leafo/scssphp from 0.7.6 to 0.7.7 (3rdparty#137)
    Bump synfony to 3.4.15 (3rdparty#146)
    Bump microsoft/azure-storage-blob from 1.1.0 to 1.2.0 (3rdparty#151)
    Bump swiftmailer/swiftmailer from 6.0.2 to 6.1.3 (3rdparty#155)
    Bump symfony to 3.4.16 (3rdparty#161)
    Bump symfony 3.4.17 (3rdparty#168)
    Remove random_compat lib (3rdparty#170)
    Bump sabre/dav from 3.2.2 to 3.2.3 (3rdparty#176)
    Manually patch PHP-Doc of VObject Splitter (3rdparty#185)
    Fix named parameter detection on SQLite (3rdparty#187)
    Update version on master (activity#291)
    Fix scrolling detection on activity 14 (activity#293)
    Make the object information available on emails (activity#299)
    Add the mimetype to the preview arrays (activity#300)
    Move to compiled handlebrs (activity#301)
    Remove unneeded -ms-filter (was only needed for IE8) (activity#302)
    Use the query builder and cast the values (activity#304)
    Add icon to files sidebar tab (activity#305)
    Fix JS unit tests after handlebars (activity#307)
    Shorten tab label 'Activities' to 'Activity' (activity#308)
    Add a intermediate migration to fix old installations (activity#310)
    Correctly restrict affected users when using command to send emails \ 
(activity#311)
    Autocomplete for email command (activity#314)
    Use the substract function instead of manual math (activity#315)
    Use the full path instead of the file name in HTML emails too (activity#316)
    Update stable15 target versions (activity#319)
    Create activity when user unshares a file themselves (activity#323)
    Validate rich objects before using (activity#324)
    Remove unneeded CSS rule for IE 11 (files_pdfviewer#100)
    Update stable15 target versions (files_pdfviewer#109)
    Update version on master (files_pdfviewer#94)
    Fix embedded viewer with new server layout on IE 11 (files_pdfviewer#95)
    Hide footer in public share page (files_pdfviewer#99)
    Update version on master (files_texteditor#112)
    Update info.xml (files_texteditor#116)
    Improve code blocks in markdown rendering (files_texteditor#120)
    Update stable15 target versions (files_texteditor#123)
    Update version on master (files_videoplayer#61)
    Fix videoplayback on NC15 (files_videoplayer#68)
    Update stable15 target versions (files_videoplayer#69)
    Don't Assume Document Root (firstrunwizard#78)
    Update version on master (firstrunwizard#81)
    Remove hardcoded background-size (firstrunwizard#84)
    Design detail and accessibility fixes (firstrunwizard#85)
    Update stable15 target versions (firstrunwizard#89)
    Add HEIC/HEIF support to the gallery (gallery#464)
    Update version on master (gallery#468)
    Move to compiled handlebars (gallery#481)
    Remove sharing height limit, since it is overwriting the server defaults \ 
(gallery#482)
    Hide button if download links are hidden for link shares (gallery#484)
    Update stable15 target versions (gallery#485)
    Update version on master (logreader#74)
    Update version on master (nextcloud_announcements#33)
    Update version on master (notifications#159)
    Update config and babel for ie11 (notifications#160)
    Add vue build test (notifications#162)
    Update all NPM (notifications#170)
    Bump @babel/core from 7.0.0 to 7.0.1 (notifications#171)
    Bump vue-loader from 15.4.1 to 15.4.2 (notifications#172)
    Bump webpack from 4.18.0 to 4.19.0 (notifications#173)
    Update NPM packages (notifications#176)
    Bump webpack from 4.19.0 to 4.19.1 (notifications#177)
    Bump webpack from 4.19.1 to 4.20.2 (notifications#179)
    Bump babel-loader from 8.0.2 to 8.0.4 (notifications#180)
    Update all NPM (notifications#184)
    Switch to compiled handlebars (notifications#186)
    Bump webpack from 4.20.2 to 4.21.0 (notifications#187)
    Add .l10nignore files for compiled assets (notifications#188)
    Bump webpack from 4.21.0 to 4.22.0 (notifications#189)
    Use the rich message when available and instead of trim overlay with a \ 
shadow (notifications#190)
    Bump css-loader from 1.0.0 to 1.0.1 (notifications#194)
    Bump webpack from 4.22.0 to 4.24.0 (notifications#195)
    Bump webpack from 4.24.0 to 4.25.1 (notifications#196)
    Bump @babel/preset-env from 7.1.0 to 7.1.5 (notifications#197)
    Bump @babel/core from 7.1.2 to 7.1.6 (notifications#199)
    Bump @babel/preset-env from 7.1.5 to 7.1.6 (notifications#200)
    Bump webpack from 4.25.1 to 4.26.0 (notifications#203)
    Update stable15 target versions (notifications#204)
    Add icon to empty content message (notifications#210)
    Update version on master (password_policy#70)
    Update stable15 target versions (password_policy#74)
    Adds tooltip to make people aware of API JSON format (serverinfo#129)
    Update version on master (serverinfo#131)
    Update stable15 target versions (serverinfo#134)
    Checking for valid CPU average values (serverinfo#97)
    Update version on master (survey_client#81)
    Properly escape column name in "createFunction" call (survey_client#84)
    Do not call invalid function (survey_client#86)
    Update stable15 target versions (survey_client#87)