!!! IMPORTANT 2.0 version before upgrade please run full backup of your site !!!

- new code structure, optimized for next development;
  - created spl_autoloader for remove includes;
  - UM classes with namespaces;
  - deprecated global $ultimatemember; variable (use UM() instead);
- new UM/WP roles logic;
- new settings class and logic (deprecated Redux framework, deprecated some old options, added some new options);
- new dependencies class for extensions;
- WP native styles for backend fields;
- new upgrades and license activations for extensions;
- new logic form backend forms and fields;
- created uninstall.php file for delete permanently all UM settings;
- optimized registration/upgrade profile process;

Deprecated Hooks:

um_new_user_registration_plain
um_user_registration_extra_hook
um_add_user_frontend
um_post_registration_global_hook
um_admin_extend_directory_options_general (was action...will be filter)

includes/class-dependencies.php

@@ -0,0 +1,132 @@
+<?php
+namespace um;
+
+// Exit if executed directly
+if ( ! defined( 'ABSPATH' ) ) exit;
+
+/**
+ * Ultimate Member Dependency Checker
+ *
+ * Checks if Ultimate Member plugin is enabled
+ */
+if ( ! class_exists( 'um\Dependencies' ) ) {
+    class Dependencies {
+
+        private static $active_plugins;
+
+
+        /**
+         * Get all active plugins
+         */
+        public static function init() {
+
+            self::$active_plugins = (array) get_option( 'active_plugins', array() );
+
+            if ( is_multisite() )
+                self::$active_plugins = array_merge( self::$active_plugins, get_site_option( 'active_sitewide_plugins', array() ) );
+        }
+
+
+        /**
+         * Check if UltimateMember core plugin is active
+         *
+         * @return bool
+         */
+        public static function ultimatemember_active_check() {
+
+            if ( ! self::$active_plugins ) self::init();
+
+            return in_array( 'ultimate-member/ultimate-member.php', self::$active_plugins ) || array_key_exists( 'ultimate-member/ultimate-member.php', self::$active_plugins );
+
+        }
+
+
+        /**
+         * Check if bbPress plugin is active
+         *
+         * @return bool
+         */
+        public static function bbpress_active_check() {
+
+            if ( ! self::$active_plugins ) self::init();
+
+            return in_array( 'bbpress/bbpress.php', self::$active_plugins ) || array_key_exists( 'bbpress/bbpress.php', self::$active_plugins );
+
+        }
+
+
+        /**
+         * Check if myCRED plugin is active
+         *
+         * @return bool
+         */
+        public static function mycred_active_check() {
+
+            if ( ! self::$active_plugins ) self::init();
+
+            return in_array( 'mycred/mycred.php', self::$active_plugins ) || array_key_exists( 'mycred/mycred.php', self::$active_plugins );
+
+        }
+
+
+        /**
+         * Check if Woocommerce plugin is active
+         *
+         * @return bool
+         */
+        public static function woocommerce_active_check() {
+
+            if ( ! self::$active_plugins ) self::init();
+
+            return in_array( 'woocommerce/woocommerce.php', self::$active_plugins ) || array_key_exists( 'woocommerce/woocommerce.php', self::$active_plugins );
+
+        }
+
+
+        /**
+         * @param string $extension_version Extension version
+         * @return mixed
+         */
+        public static function ultimatemember_version_check( $extension_version ) {
+
+            return version_compare( ultimatemember_version, $extension_version, '>=' );
+
+        }
+
+
+        /**
+         * @param string $extension_version Extension version
+         * @return mixed
+         */
+        public static function php_version_check( $extension_version ) {
+
+            return version_compare( phpversion(), $extension_version, '>=' );
+
+        }
+
+    }
+}
+
+
+if ( ! function_exists( 'is_um_active' ) ) {
+    /**
+     * Check UltimateMember core is active
+     *
+     * @return bool active - true | inactive - false
+     */
+    function is_um_active() {
+        return Dependencies::ultimatemember_active_check();
+    }
+}
+
+
+if ( ! function_exists( 'is_um_version_required' ) ) {
+    /**
+     * Check UltimateMember core required version
+     *
+     * @return bool  Larger then required - true | Less than necessary - false
+     */
+    function is_um_version_required( $version ) {
+        return Dependencies::ultimatemember_version_check( $version );
+    }
+}