Update to WordPress 4.7 – Fatal error: Maximum execution time of 30 seconds exceeded

Manually updating WordPress fixes this issue.

Upgrading WordPress Core Manually (How To) WordFence Reference

  • First create a full backup of your website. This is very important in
    case you make a mistake.
  • Download the newest WordPress ZIP file from wordpress.org. Unzip the
    file into a directory on your local machine or in a separate
    directory on your website.
  • Deactivate all of the plugins on your WordPress site.
  • Go to your website root directory and delete your ‘wp-includes’ and
    ‘wp-admin’ directories. You can do this via sFTP or via SSH.
  • Upload (or copy over) the new wp-includes and wp-admin directories
    from the new version of WordPress you unzipped to your website root
    directory to replace the directories you just deleted.
  • Don’t delete your wp-content directory or any of the files in that
    directory. Copy over the files from the wp-content directory in the
    new version of WordPress to your existing wp-content directory. You
    will overwrite any existing files with the same name. All of your
    other files in wp-content will remain in place.
  • Copy all files from the root (‘/’) directory of the new version of
    WordPress that you unzipped into your website root directory (or the
    root directory of your WordPress installation). You will overwrite
    any existing files and new files will also be copied across. Your
    wp-config.php file will not be affected because WordPress is never
    distributed with a wp-config.php file.
  • Examine the wp-config-sample.php which is distributed with WordPress
    to see if any new settings have been added that you may want to use
    or modify.
  • If you are upgrading manually after a failed auto-update, remove the
    .maintenance file from your WordPress root directory. This will
    remove the ‘failed update’ message from your site.
  • Visit your main WordPress admin page at /wp-admin/ where you may be
    asked to sign-in again. You may also have to upgrade your database
    and will be prompted if this is needed. If you can’t sign-in, try
    clearing your cookies. Re-enable your plugins which you disabled
    earlier.
  • Clear your browser cache to ensure you can see all changes. If you
    are using a front-end cache like ‘varnish’ you should also clear that
    to ensure that your customers can see the newest changes on your
    site.
  • Your upgrade is now complete and you should be running the newest
    version of WordPress.

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