bbp_version_updater()

function bbp_version_updater() {

	// Get the raw database version
	$raw_db_version = (int) bbp_get_db_version_raw();

	/** 2.0 Branch ************************************************************/

	// 2.0, 2.0.1, 2.0.2, 2.0.3
	if ( $raw_db_version < 200 ) {
		// No changes
	}

	/** 2.1 Branch ************************************************************/

	// 2.1, 2.1.1
	if ( $raw_db_version < 211 ) {

		/**
		 * Repair private and hidden forum data
		 *
		 * @link http://bbpress.trac.wordpress.org/ticket/1891
		 */
		bbp_admin_repair_forum_visibility();
	}

	/** 2.2 Branch ************************************************************/

	// 2.2
	if ( $raw_db_version < 220 ) {

		// Remove the Moderator role from the database
		remove_role( bbp_get_moderator_role() );

		// Remove the Participant role from the database
		remove_role( bbp_get_participant_role() );

		// Remove capabilities
		bbp_remove_caps();
	}

	/** 2.3 Branch ************************************************************/

	// 2.3
	if ( $raw_db_version < 230 ) {
		// No changes
	}

	/** All done! *************************************************************/

	// Bump the version
	bbp_version_bump();

	// Delete rewrite rules to force a flush
	bbp_delete_rewrite_rules();
}