Nextcloud 16 RC 1 update not appearing

ℹ️ Support
1

Nextcloud version (eg, 12.0.2): 15.0.7
Operating system and version (eg, Ubuntu 17.04): Ubuntu 18.04 LTS
Apache or nginx version (eg, Apache 2.4.25): nginx 1.14.2
PHP version (eg, 7.1): PHP 7.3.4-1

The issue you are facing:
When I change my update channel from stable to beta, the Nextcloud 16 RC 1 update does not appear. I tried refreshing multiple times and changing channels. Unfortunately, I don’t get the 16 RC 1 update.

Is this the first time you’ve seen this error? (Y/N): Yes

Steps to replicate it:

  1. Go to settings
  2. Change the channel from stable to beta
  3. See that it doesn’t show the 16 RC 1 update

The output of your Nextcloud log in Admin > Logging:

/

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

<?php
$CONFIG = array (
  'instanceid' => '',
  'passwordsalt' => '',
  'secret' => '',
  'trusted_domains' =>
  array (
    0 => '',
  ),
  'datadirectory' => '/var/nextcloud/data',
  'overwrite.cli.url' => '',
  'dbtype' => 'mysql',
  'version' => '15.0.7.0',
  'dbname' => 'nextcloud',
  'dbhost' => 'localhost',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'dbuser' => '',
  'dbpassword' => '',
  'installed' => true,
  'redis' =>
  array (
    'host' => 'localhost',
    'port' => ,
    'dbindex' => 0,
    'password' => '',
    'timeout' => 1.5,
  ),
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'memcache.locking' => '\\OC\\Memcache\\Redis',
  'maintenance' => false,
  'theme' => '',
  'loglevel' => 0,
  'updater.release.channel' => 'beta',
  'mail_smtpmode' => 'smtp',
  'mail_from_address' => 'webmaster',
  'mail_domain' => '',
  'mail_smtpport' => '',
  'mail_sendmailmode' => 'smtp',
  'mail_smtpsecure' => 'tls',
  'mail_smtphost' => '',
  'mail_smtpauthtype' => '',
  'mail_smtpauth' => 1,
  'mail_smtpname' => '',
  'mail_smtppassword' => '',
);

The output of your Apache/nginx/system log in /var/log/____:

Only contains access logs, nothing special.