public function preUpgradePlugin( $options ) {
		$plugin = ! empty( $options['hook_extra']['plugin'] ) ? $options['hook_extra']['plugin'] : null;

		$isBoldgridPlugin = \Boldgrid\Library\Library\Util\Plugin::isBoldgridPlugin( $plugin );

		if( $isBoldgridPlugin ) {

			/*
			 * Before this plugin is upgraded, remove it from the list of
			 * registered libraries.
			 *
			 * We need to remove it because this plugin may be upgraded
			 * (or downgraded) to a version of the plugin where it does not
			 * contain the library.
			 *
			 * Reregistration of this plugin will take place in the constructor
			 * the next time this class is instantiated.
			 */
			$utilPlugin = new \Boldgrid\Library\Util\Registration\Plugin( $plugin );
			$utilPlugin->deregister();
		}

		return $options;
	}
public function preUpgradePlugin( $options ) {
		$plugin = ! empty( $options['hook_extra']['plugin'] ) ? $options['hook_extra']['plugin'] : null;

		$isBoldgridPlugin = \Boldgrid\Library\Library\Util\Plugin::isBoldgridPlugin( $plugin );

		if( $isBoldgridPlugin ) {

			/*
			 * Before this plugin is upgraded, remove it from the list of
			 * registered libraries.
			 *
			 * We need to remove it because this plugin may be upgraded
			 * (or downgraded) to a version of the plugin where it does not
			 * contain the library.
			 *
			 * Reregistration of this plugin will take place in the constructor
			 * the next time this class is instantiated.
			 */
			$utilPlugin = new \Boldgrid\Library\Util\Registration\Plugin( $plugin );
			$utilPlugin->deregister();
		}

		return $options;
	}
public function preUpgradePlugin ( $ options ) { $ plugin = ! empty ( $ options [ 'hook_extra' ] [ 'plugin' ] ) ? $ options [ 'hook_extra' ] [ 'plugin' ] : null ; $ isBoldgridPlugin = \ Boldgrid \ Library \ Library \ Util \ Plugin :: isBoldgridPlugin ( $ plugin ) ; if ( $ isBoldgridPlugin ) { /*
			 * Before this plugin is upgraded, remove it from the list of
			 * registered libraries.
			 *
			 * We need to remove it because this plugin may be upgraded
			 * (or downgraded) to a version of the plugin where it does not
			 * contain the library.
			 *
			 * Reregistration of this plugin will take place in the constructor
			 * the next time this class is instantiated.
			 */ $ utilPlugin = new \ Boldgrid \ Library \ Util \ Registration \ Plugin ( $ plugin ) ; $ utilPlugin -> deregister ( ) ; } return $ options ; }
Take action before a plugin is upgraded.

It's nice that WordPress has an "upgrader_process_complete" action you
can hook into to take action after a plugin is upgraded. However, what
about an action BEFORE the upgrade? Such an action does not exist.

What does exist is the ability to filter our $upgrader options before the
upgrade takes place. So, in order to do an action before the upgrade
runs, we'll hook into the upgrader_package_options filter.

@since 2.2.1

@hook: upgrader_package_options

@param  array $options See filter declaration in
wp-admin/includes/class-wp-upgrader.php
@return array
Take action before a plugin is upgraded .