Classic mode upgrade

Minor Upgrades - Using The Core Updater

The "Install Tool" in the section "Important Actions" provides a function to update the TYPO3 Core.

In the section "Important Actions" scroll down to "Core update" and click the "Check for core updates" button. If the requirements are met, TYPO3 will automatically install the new source code.

Database updates are usually not necessary, though you still have to remove the temporary cache files. After that your update is finished.

Disabling the Core Updater in a classic mode installation

The Core Updater functionality can be turned off, in order to avoid users using it, i.e. if you use your own update mechanism.

This feature is already disabled when TYPO3 is installed via Composer.

To disable the Core updater, you can set this environment variable:

TYPO3_DISABLE_CORE_UPDATER=1
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typo3_root/public/.htaccess
SetEnv TYPO3_DISABLE_CORE_UPDATER 1
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/usr/local/nginx/conf/nginx.conf
server {
  location ~ path/to/it {
    include fastcgi_params;
    fastcgi_param TYPO3_DISABLE_CORE_UPDATER "1";
  }
}
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This will remove the button and all related functionality in the Install Tool.