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Because this plugin allows configuration of arbitrary file paths to be written to (subject to the web server having permission to write to them), it is disabled by default. To enable this plugin, edit the file app/Plugin/ChangelogProvisioner/Model/ChangelogProvisioner.php and change $cmPluginType to provisioner. Care should be taken when enabling this plugin in a multi-tenant environment. You may also wish to set open_basedir in php.ini.
This is a non-core plugin, see Installing and Enabling Registry Plugins for more information.