After the new release, obviously that core and plugin automatic updates it's not working by my side. For the core auto updates I added the following mu-plugin:

add_filter( 'allow_major_auto_core_updates', '__return_true' );
add_filter( 'allow_minor_auto_core_updates', '__return_true' );

As I don't want dev builds. And another mu-plugin for autoupdate plugins:

add_filter( 'auto_update_plugin', '__return_true' );

I also use W3-Total-Cache plugin and tried to clear all caches, still no success. Where is my mistake? How to debug this? Is the auto update feature uses cron jobs? Please advice. Thanks!

  • 1
    A little luck so far. I found that plugin Background Update Tester which detect why auto updates are not working. I had version control in my folder so I removed it and now everything is passing but still no upgrade either to the core or plugins occurred. Aug 18, 2016 at 11:32
  • So maybe my webserver would require FTP credentials to autoupdate so adding this to wp-config.php would be a clue: define(‘FS_METHOD’, ‘direct’); Aug 18, 2016 at 12:52

1 Answer 1


So basically there a few more things to watch out when debugging this issues. I did the following and everything works like a charm.

Downloaded the Background Update Tester plugin to see if there are any conflicts.

  • Your WordPress install can communicate with WordPress.org securely.
  • No version control systems were detected. (I had .git folder in my installation)
  • Your installation of WordPress doesn’t require FTP credentials to perform updates. If it does just add define('FS_METHOD','direct'); in the wp-config.php or add the credentials via some of those constants

define('FS_CHMOD_FILE', 0755); define('FS_CHMOD_DIR', 0755); define('FS_METHOD', 'ftpext'); define('FTP_BASE', '/httpdocs/'); define('FTP_CONTENT_DIR', '/httpdocs/wp-content/'); define('FTP_PLUGIN_DIR ', '/httpdocs/wp-content/plugins/'); define('FTP_USER', 'username'); define('FTP_PASS', 'password'); define('FTP_HOST', '123.456.789'); define('FTP_SSL', false);

  • All of your WordPress files are writable.
  • What about if you want to keep the version control, but still allow updates?
    – hazrpg
    Feb 15, 2017 at 23:44
  • 1
    I would simply mark the unstaged or changed files as "Core files updated automatically" in the commit the next time I visited the repo. Because if I'm visiting the repo, then I'm about to make some manual code changes... and I would know which files I (am going to/have) changed. I already have a script which automates this when I manually update. I can understand the logic that if the git repo is within the root of the site, then auto-updates is not ideal because it is a staging site, but if it is up one directory or more... then it is wrong to assume. E.g. site root might be ignored.
    – hazrpg
    Feb 22, 2017 at 22:00
  • The background update tester plugin now says that it has not been tested with recent versions, and when I installed it and activated it I could not find the menu item that it was supposed to put in the dashboard, so (barring user error) I suspect it may no longer work.
    – naomi
    Jan 18, 2019 at 11:11

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