Support intro
Sorry to hear you’re facing problems 
help.nextcloud.com is for home/non-enterprise users. If you’re running a business, paid support can be accessed via portal.nextcloud.com where we can ensure your business keeps running smoothly.
In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:
example
Or for longer, use three backticks above and below the code snippet:
longer
example
here
Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can 
Nextcloud version (eg, 12.0.2): 18.0.0 Beta3
Operating system and version (eg, Ubuntu 17.04): Debian 10
Apache or nginx version (eg, Apache 2.4.25): nginx 1.14.1-1
PHP version (eg, 7.1): 7.3.11
The issue you are facing:
Upgrade does not detect newer version and thus does nothing
$ sudo -u www-data php occ upgrade
Nextcloud is already latest version
Is this the first time you’ve seen this error? (Y/N): N
Steps to replicate it:
Run the following
$ sudo -u www-data php occ upgrade -V
Nextcloud 18.0.0 Beta3
$ sudo -u www-data php occ update:check
Nextcloud 18.0.0 RC 2 is available. Get more information on how to update at https://docs.nextcloud.com/server/17/admin_manual/maintenance/upgrade.html.
1 update available
$ sudo -u www-data php occ upgrade
Nextcloud is already latest version
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
<?php
$CONFIG = array (
'instanceid' => 'xxxx',
'passwordsalt' => 'xxxx',
'secret' => 'xxxx',
'trusted_domains' =>
array (
0 => 'xxx.xxx.xxxx',
),
'datadirectory' => '/srv/nc/data',
'overwrite.cli.url' => 'https://xxx.xxx.xx',
'dbtype' => 'mysql',
'version' => '18.0.0.5',
'dbname' => 'nc',
'dbhost' => 'localhost',
'dbport' => '',
'dbtableprefix' => 'oc_',
'dbuser' => 'xxxx',
'dbpassword' => 'Y+xxxx',
'logtimezone' => 'UTC',
'installed' => true,
'updater.release.channel' => 'beta',
'mail_from_address' => 'nc',
'mail_smtpmode' => 'smtp',
'mail_domain' => 'xxx.xx',
'maintenance' => false,
'memcache.local' => '\\OC\\Memcache\\APCu',
'theme' => '',
'log_type' => 'syslog',
'logfile' => '',
'loglevel' => 0,
'mail_smtpsecure' => 'ssl',
'mail_smtpauthtype' => 'LOGIN',
'mail_smtpauth' => 1,
'mail_smtphost' => 'xxx.xxx.xxx',
'mail_smtpport' => 'xxx',
'mail_smtpname' => 'xxx@xxx.xxx',
'mail_smtppassword' => 'xxxx',
'twofactor_enforced' => 'true',
'twofactor_enforced_groups' =>
array (
),
'twofactor_enforced_excluded_groups' =>
array (
),
'app_install_overwrite' =>
array (
0 => 'unsplash',
1 => 'contacts',
2 => 'files_retention',
3 => 'admin_notifications',
4 => 'deck',
5 => 'dashboard',
6 => 'announcementcenter',
7 => 'quota_warning',
8 => 'circles',
9 => 'bruteforcesettings',
10 => 'drawio',
),
'updater.secret' => 'xxxx',
);