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I found the answer here:

  • If the install uses FTP for updates (and prompts for credentials), automatic updates are disabled. (I found this answerthis answer which will tell you how to avoid using FTP.)
  • If the install is running as a SVN or GIT checkout, automatic updates are disabled
  • If the constants DISALLOW_FILE_MODS or AUTOMATIC_UPDATER_DISABLED are defined, automatic updates are disabled
  • If the constant WP_AUTO_UPDATE_CORE is defined as false, automatic updates are disabled
  • Your WordPress install also needs to be able to contact WordPress.org over HTTPS connections, so your PHP install also needs OpenSSL installed and working
  • Wp-Cron needs to be operational, if for some reason cron fails to work for your install, Automatic Updates will also be unavailable

This plugin will test these things for you.

I found the answer here:

  • If the install uses FTP for updates (and prompts for credentials), automatic updates are disabled. (I found this answer which will tell you how to avoid using FTP.)
  • If the install is running as a SVN or GIT checkout, automatic updates are disabled
  • If the constants DISALLOW_FILE_MODS or AUTOMATIC_UPDATER_DISABLED are defined, automatic updates are disabled
  • If the constant WP_AUTO_UPDATE_CORE is defined as false, automatic updates are disabled
  • Your WordPress install also needs to be able to contact WordPress.org over HTTPS connections, so your PHP install also needs OpenSSL installed and working
  • Wp-Cron needs to be operational, if for some reason cron fails to work for your install, Automatic Updates will also be unavailable

This plugin will test these things for you.

I found the answer here:

  • If the install uses FTP for updates (and prompts for credentials), automatic updates are disabled. (I found this answer which will tell you how to avoid using FTP.)
  • If the install is running as a SVN or GIT checkout, automatic updates are disabled
  • If the constants DISALLOW_FILE_MODS or AUTOMATIC_UPDATER_DISABLED are defined, automatic updates are disabled
  • If the constant WP_AUTO_UPDATE_CORE is defined as false, automatic updates are disabled
  • Your WordPress install also needs to be able to contact WordPress.org over HTTPS connections, so your PHP install also needs OpenSSL installed and working
  • Wp-Cron needs to be operational, if for some reason cron fails to work for your install, Automatic Updates will also be unavailable

This plugin will test these things for you.

Added links to extra info I found recently.
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paulmorriss
  • 299
  • 2
  • 13

I found the answer here:

  • If the install uses FTP for updates (and prompts for credentials), automatic updates are disabled. (I found this answer which will tell you how to avoid using FTP.)
  • If the install is running as a SVN or GIT checkout, automatic updates are disabled
  • If the constants DISALLOW_FILE_MODS or AUTOMATIC_UPDATER_DISABLED are defined, automatic updates are disabled
  • If the constant WP_AUTO_UPDATE_CORE is defined as false, automatic updates are disabled
  • Your WordPress install also needs to be able to contact WordPress.org over HTTPS connections, so your PHP install also needs OpenSSL installed and working
  • Wp-Cron needs to be operational, if for some reason cron fails to work for your install, Automatic Updates will also be unavailable

This plugin will test these things for you.

I found the answer here:

  • If the install uses FTP for updates (and prompts for credentials), automatic updates are disabled
  • If the install is running as a SVN or GIT checkout, automatic updates are disabled
  • If the constants DISALLOW_FILE_MODS or AUTOMATIC_UPDATER_DISABLED are defined, automatic updates are disabled
  • If the constant WP_AUTO_UPDATE_CORE is defined as false, automatic updates are disabled
  • Your WordPress install also needs to be able to contact WordPress.org over HTTPS connections, so your PHP install also needs OpenSSL installed and working
  • Wp-Cron needs to be operational, if for some reason cron fails to work for your install, Automatic Updates will also be unavailable

I found the answer here:

  • If the install uses FTP for updates (and prompts for credentials), automatic updates are disabled. (I found this answer which will tell you how to avoid using FTP.)
  • If the install is running as a SVN or GIT checkout, automatic updates are disabled
  • If the constants DISALLOW_FILE_MODS or AUTOMATIC_UPDATER_DISABLED are defined, automatic updates are disabled
  • If the constant WP_AUTO_UPDATE_CORE is defined as false, automatic updates are disabled
  • Your WordPress install also needs to be able to contact WordPress.org over HTTPS connections, so your PHP install also needs OpenSSL installed and working
  • Wp-Cron needs to be operational, if for some reason cron fails to work for your install, Automatic Updates will also be unavailable

This plugin will test these things for you.

Source Link
paulmorriss
  • 299
  • 2
  • 13

I found the answer here:

  • If the install uses FTP for updates (and prompts for credentials), automatic updates are disabled
  • If the install is running as a SVN or GIT checkout, automatic updates are disabled
  • If the constants DISALLOW_FILE_MODS or AUTOMATIC_UPDATER_DISABLED are defined, automatic updates are disabled
  • If the constant WP_AUTO_UPDATE_CORE is defined as false, automatic updates are disabled
  • Your WordPress install also needs to be able to contact WordPress.org over HTTPS connections, so your PHP install also needs OpenSSL installed and working
  • Wp-Cron needs to be operational, if for some reason cron fails to work for your install, Automatic Updates will also be unavailable