This update for nextcloud fixes the following issues:

nextcloud version 20.0.0 fix some security issues:

  - NC-SA-2020-037
    PIN for passwordless WebAuthm is asked for but not verified
  - NC-SA-2020-033 (CVE-2020-8228)
    Missing rate limit on signup page
  - NC-SA-2020-029 (CVE-2020-8233, boo#1177346)
    Re-Sharing allows increase of privileges
  - NC-SA-2020-026
    Passowrd of share by mail is not hashed when given on the create share call
  - NC-SA-2020-023
    Increase random used for encryption

- Update to 19.0.3

  - Fix possible leaking scope in Flow (server#22410)
  - Combine body-login rules in theming and fix twofactor and guest styling on bright colors (server#22427)
  - Show better quota warning for group folders and external storage (server#22442)
  - Add php docs build script (server#22448)
  - Fix clicks on actions menu of non opaque file rows in acceptance tests (server#22503)
  - Fix writing BLOBs to postgres with recent contacts interaction (server#22515)
  - Set the mount id before calling storage wrapper (server#22519)
  - Fix S3 error handling (server#22521)
  - Only disable zip64 if the size is known (server#22537)
  - Change free space calculation (server#22553)
  - Do not keep the part file if the forbidden exception has no retry set (server#22560)
  - Fix app password updating out of bounds (server#22569)
  - Use the correct root to determinate the webroot for the resource (server#22579)
  - Upgrade icewind/smb to 3.2.7 (server#22581)
  - Bump elliptic from 6.4.1 to 6.5.3 (notifications#732)
  - Fixes regression that prevented you from toggling the encryption flag (privacy#489)
  - Match any non-whitespace character in filesystem pattern (serverinfo#229)
  - Catch StorageNotAvailable exceptions (text#1001)
  - Harden read only check on public endpoints (text#1017)
  - Harden check when using token from memcache (text#1020)
  - Sessionid is an int (text#1029)
  - Only overwrite Ctrl-f when text is focussed (text#990)
  - Set the X-Requested-With header on dav requests (viewer#582)

- Update to 19.0.2

  - [stable19] lower minimum search length to 2 characters (server#21782)
  - [stable19] Call openssl_pkey_export with $config and log errors. (server#21804)
  - [stable19] Improve error reporting on sharing errors (server#21806)
  - [stable19] Do not log RequestedRangeNotSatisfiable exceptions in DAV (server#21840)
  - [stable19] Fix parsing of language code (server#21857)
  - [stable19] fix typo in revokeShare() (server#21876)
  - [stable19] Discourage webauthn user interaction (server#21917)
  - [stable19] Encryption is ready if master key is enabled (server#21935)
  - [stable19] Disable fragile comments tests (server#21939)
  - [stable19] Do not double encode the userid in webauthn login (server#21953)
  - [stable19] update icewind/smb to 3.2.6 (server#21955)
  - [stable19] Respect default share permissions (server#21967)
  - [stable19] allow admin to configure the max trashbin size (server#21975)
  - [stable19] Fix risky test in twofactor_backupcodes (server#21978)
  - [stable19] Fix PHPUnit deprecation warnings (server#21981)
  - [stable19] fix moving files from external storage to object store trashbin (server#21983)
  - [stable19] Ignore whitespace in sharing by mail (server#21991)
  - [stable19] Properly fetch translation for remote wipe confirmation dialog (server#22036)
  - [stable19] parse_url returns null in case a parameter is not found (server#22044)
  - Bump elliptic from 6.5.2 to 6.5.3 (server#22050)
  - [stable19] Correctly remove usergroup shares on removing group members (server#22053)
  - [stable19] Fix height to big for iPhone when using many apps (server#22064)
  - [stable19] reset the cookie internally in new API when abandoning paged results op (server#22069)
  - [stable19] Add Guzzle's InvalidArgumentException (server#22070)
  - [stable19] contactsmanager shall limit number of results early (server#22091)
  - [stable19] Fix browser freeze on long password input (server#22094)
  - [stable19] Search also the email and displayname in user mangement for groups (server#22118)
  - [stable19] Ensured large image is unloaded from memory when generating previews (server#22121)
  - [stable19] fix display of remote users in incoming share notifications (server#22131)
  - [stable19] Reuse cache for directory mtime/size if filesystem changes can be ignored (server#22171)
  - [stable19] Remove unexpected argument (server#22178)
  - [stable19] Do not exit if available space cannot be determined on file transfer (server#22181)
  - [stable19] Fix empty 'more' apps navigation after installing an app (server#22183)
  - [stable19] Fix default log_rotate_size in config.sample.php (server#22192)
  - [stable19] shortcut in reading nested group members when IN_CHAIN is available (server#22203)
  - [stable19] Fix chmod on file descriptor (server#22208)
  - [stable19] Do clearstatcache() on rmdir (server#22209)
  - [stable19] SSE enhancement of file signature (server#22210)
  - [stable19] remove logging message carrying no valuable information (server#22215)
  - [stable19] Add app config option to disable "Email was changed by admin" activity (server#22232)
  - [stable19] Delete chunks if the move on an upload failed (server#22239)
  - [stable19] Silence duplicate session warnings (server#22247)
  - [3rdparty] Doctrine: Fix unquoted stmt fragments backslash escaping (server#22252)
  - [stable19] Allow to disable share emails (server#22300)
  - [stable19] Show disabled user count in occ user:report (server#22302)
  - Bump 3rdparty to last stable19 commit (server#22303)
  - [stable19] fixing a logged deprecation message (server#22309)
  - [stable19] CalDAV: Add ability to limit sharing to owner (server#22333)
  - [stable19] Only copy the link when updating a share or no password was forced (server#22337)
  - [stable19] Remove encryption option for nextcloud external storage (server#22341)
  - [stable19] l10n:Correct appid for WebAuthn (server#22348)
  - [stable19] Properly search for users when limittogroups is enabled (server#22355)
  - [stable19] SSE: make legacy format opt in (server#22381)
  - [stable19] Update the CRL (server#22387)
  - [stable19] Fix missing FN from federated contact (server#22400)
  - [stable19] fix event icon sizes and text alignment (server#22414)
  - [stable19] Bump stecman/symfony-console-completion from 0.8.0 to 0.11.0 (3rdparty#457)
  - [stable19] Add Guzzle's InvalidArgumentException (3rdparty#474)
  - [stable19] Doctrine: Fix unquoted stmt fragments backslash escaping (3rdparty#486)
  - [stable19] Fix cypress (viewer#545)
  - Move to webpack vue global config & bump deps (viewer#558)

- Update to 19.0.1

  - Security update
    Fix (CVE-2020-8183, NC-SA-2020-026, CWE-256)
    A logic error in Nextcloud Server 19.0.0 caused a plaintext 
    storage of the share password when it was given on the initial
    create API call.

- Update to 19.0.0

  * Changes
    Nextcloud Hub v19, code name “home office”, represents a big step forward 
    for remote collaboration in teams. 
    This release brings document collaboration to video chats,
    introduces password-less login and improves performance.
    As this is a major release, the changelog is too long to put here. 
    Users can look at github milestones to find what has been merged. 
    A quick overview of what is new:
    - password-less authentication and many other security measures
    - Talk 9 with built-in office document editing courtesy of Collabora, a grid view & more
    - MUCH improved performance, Deck integration in Calendar, guest account groups and more!