function bbp_version_updater() {

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

	// Only run updater if previous installation exists
	if ( ! empty( $raw_db_version ) ) {

		/** 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 https://bbpress.trac.wordpress.org/ticket/1891
			 */
			bbp_admin_repair_forum_visibility();
		}

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

		// 2.2.x
		if ( $raw_db_version < 220 ) {

			// Remove any old bbPress roles
			bbp_remove_roles();

			// Remove capabilities
			bbp_remove_caps();
		}

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

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

		/** 2.4 Branch ********************************************************/

		// 2.4.x
		if ( $raw_db_version < 240 ) {
			// No changes
		}

		/** 2.5 Branch ********************************************************/

		// 2.5.x
		if ( $raw_db_version < 250 ) {
			// No changes
		}

		/** 2.6 Branch ********************************************************/

		// Smaller installs run the upgrades directly
		if ( ! bbp_is_large_install() ) {

			/**
			 * Upgrade user favorites and subscriptions
			 */
			if ( $raw_db_version < 261 ) {
				bbp_admin_upgrade_user_favorites();
				bbp_admin_upgrade_user_topic_subscriptions();
				bbp_admin_upgrade_user_forum_subscriptions();
			}

			/**
			 * Upgrade user engagements
			 */
			if ( $raw_db_version < 262 ) {
				bbp_admin_upgrade_user_engagements();
			}

			/**
			 * Repair forum hidden reply count
			 */
			if ( $raw_db_version < 263 ) {
				bbp_admin_repair_forum_hidden_reply_count();
			}

		// Large installs require manual intervention
		} else {

			/**
			 * Upgrade user favorites and subscriptions
			 */
			if ( $raw_db_version < 261 ) {
				bbp_add_pending_upgrade( 'bbp-user-favorites-move' );
				bbp_add_pending_upgrade( 'bbp-user-topic-subscriptions-move' );
				bbp_add_pending_upgrade( 'bbp-user-forum-subscriptions-move' );

				// Set strategy to pre-2.6 on large network
				update_option( '_bbp_engagements_strategy', 'user' );
			}

			/**
			 * Upgrade user engagements
			 */
			if ( $raw_db_version < 262 ) {
				bbp_add_pending_upgrade( 'bbp-user-topic-engagements-move' );

				// Set strategy to pre-2.6 on large network
				update_option( '_bbp_engagements_strategy', 'user' );
			}

			/**
			 * Upgrade user engagements
			 */
			if ( $raw_db_version < 263 ) {
				bbp_add_pending_upgrade( 'bbp-forum-hidden-replies' );
			}
		}
	}

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

	// Bump the version
	bbp_version_bump();

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