WordPress 4.5

[autoinstalls/wordpress.git] / wp-includes / update.php

diff --git a/wp-includes/update.php b/wp-includes/update.php
index de335a04c9e7696f2e6c0bb2d2adfcc1b6a55601..3fe0d937289b6a9ffe7954833966ac07f6893ee3 100644 (file)
--- a/wp-includes/update.php
+++ b/wp-includes/update.php
@@ -13,37 +13,47 @@
  * WordPress server at api.wordpress.org server. Will only check if WordPress
  * isn't installing.
  *
  * WordPress server at api.wordpress.org server. Will only check if WordPress
  * isn't installing.
  *

- * @package WordPress

  * @since 2.3.0
  * @since 2.3.0

- * @uses $wp_version Used to check against the newest WordPress version.
+ * @global string $wp_version Used to check against the newest WordPress version.
+ * @global wpdb   $wpdb
+ * @global string $wp_local_package

  *
  * @param array $extra_stats Extra statistics to report to the WordPress.org API.
  *
  * @param array $extra_stats Extra statistics to report to the WordPress.org API.

- * @return mixed Returns null if update is unsupported. Returns false if check is too soon.
+ * @param bool  $force_check Whether to bypass the transient cache and force a fresh update check. Defaults to false, true if $extra_stats is set.

  */
  */

-function wp_version_check( $extra_stats = array() ) {
-       if ( defined('WP_INSTALLING') )
+function wp_version_check( $extra_stats = array(), $force_check = false ) {
+       if ( wp_installing() ) {

                return;
                return;

+       }

 
        global $wpdb, $wp_local_package;
 
        global $wpdb, $wp_local_package;

-       include ABSPATH . WPINC . '/version.php'; // include an unmodified $wp_version
+       // include an unmodified $wp_version
+       include( ABSPATH . WPINC . '/version.php' );

        $php_version = phpversion();
 
        $current = get_site_transient( 'update_core' );
        $translations = wp_get_installed_translations( 'core' );
 
        $php_version = phpversion();
 
        $current = get_site_transient( 'update_core' );
        $translations = wp_get_installed_translations( 'core' );
 

+       // Invalidate the transient when $wp_version changes
+       if ( is_object( $current ) && $wp_version != $current->version_checked )
+               $current = false;
+

        if ( ! is_object($current) ) {
                $current = new stdClass;
                $current->updates = array();
                $current->version_checked = $wp_version;
        }
 
        if ( ! is_object($current) ) {
                $current = new stdClass;
                $current->updates = array();
                $current->version_checked = $wp_version;
        }
 

+       if ( ! empty( $extra_stats ) )
+               $force_check = true;
+

        // Wait 60 seconds between multiple version check requests
        $timeout = 60;
        $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
        // Wait 60 seconds between multiple version check requests
        $timeout = 60;
        $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );

-       if ( $time_not_changed && empty( $extra_stats ) )
-               return false;
+       if ( ! $force_check && $time_not_changed ) {
+               return;
+       }

 
 

-       $locale = get_locale();

        /**
         * Filter the locale requested for WordPress core translations.
         *
        /**
         * Filter the locale requested for WordPress core translations.
         *


@@ -51,7 +61,7 @@ function wp_version_check( $extra_stats = array() ) {
         *
         * @param string $locale Current locale.
         */
         *
         * @param string $locale Current locale.
         */

-       $locale = apply_filters( 'core_version_check_locale', $locale );
+       $locale = apply_filters( 'core_version_check_locale', get_locale() );

 
        // Update last_checked for current to prevent multiple blocking requests if request hangs
        $current->last_checked = time();
 
        // Update last_checked for current to prevent multiple blocking requests if request hangs
        $current->last_checked = time();


@@ -76,21 +86,22 @@ function wp_version_check( $extra_stats = array() ) {
        }
 
        $query = array(
        }
 
        $query = array(

-               'version'           => $wp_version,
-               'php'               => $php_version,
-               'locale'            => $locale,
-               'mysql'             => $mysql_version,
-               'local_package'     => isset( $wp_local_package ) ? $wp_local_package : '',
-               'blogs'             => $num_blogs,
-               'users'             => $user_count,
-               'multisite_enabled' => $multisite_enabled,
+               'version'            => $wp_version,
+               'php'                => $php_version,
+               'locale'             => $locale,
+               'mysql'              => $mysql_version,
+               'local_package'      => isset( $wp_local_package ) ? $wp_local_package : '',
+               'blogs'              => $num_blogs,
+               'users'              => $user_count,
+               'multisite_enabled'  => $multisite_enabled,
+               'initial_db_version' => get_site_option( 'initial_db_version' ),

        );
 
        $post_body = array(
        );
 
        $post_body = array(

-               'translations' => json_encode( $translations ),
+               'translations' => wp_json_encode( $translations ),

        );
 
        );
 

-       if ( $extra_stats )
+       if ( is_array( $extra_stats ) )

                $post_body = array_merge( $post_body, $extra_stats );
 
        $url = $http_url = 'http://api.wordpress.org/core/version-check/1.7/?' . http_build_query( $query, null, '&' );
                $post_body = array_merge( $post_body, $extra_stats );
 
        $url = $http_url = 'http://api.wordpress.org/core/version-check/1.7/?' . http_build_query( $query, null, '&' );


@@ -109,18 +120,20 @@ function wp_version_check( $extra_stats = array() ) {
 
        $response = wp_remote_post( $url, $options );
        if ( $ssl && is_wp_error( $response ) ) {
 
        $response = wp_remote_post( $url, $options );
        if ( $ssl && is_wp_error( $response ) ) {

-               trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="http://wordpress.org/support/">support forums</a>.' ) . ' ' . '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)', headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );
+               trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );

                $response = wp_remote_post( $http_url, $options );
        }
 
                $response = wp_remote_post( $http_url, $options );
        }
 

-       if ( is_wp_error( $response ) || 200 != wp_remote_retrieve_response_code( $response ) )
-               return false;
+       if ( is_wp_error( $response ) || 200 != wp_remote_retrieve_response_code( $response ) ) {
+               return;
+       }

 
        $body = trim( wp_remote_retrieve_body( $response ) );
        $body = json_decode( $body, true );
 
 
        $body = trim( wp_remote_retrieve_body( $response ) );
        $body = json_decode( $body, true );
 

-       if ( ! is_array( $body ) || ! isset( $body['offers'] ) )
-               return false;
+       if ( ! is_array( $body ) || ! isset( $body['offers'] ) ) {
+               return;
+       }

 
        $offers = $body['offers'];
 
 
        $offers = $body['offers'];
 


@@ -135,7 +148,7 @@ function wp_version_check( $extra_stats = array() ) {
                                $offer[ $offer_key ] = esc_html( $value );
                }
                $offer = (object) array_intersect_key( $offer, array_fill_keys( array( 'response', 'download', 'locale',
                                $offer[ $offer_key ] = esc_html( $value );
                }
                $offer = (object) array_intersect_key( $offer, array_fill_keys( array( 'response', 'download', 'locale',

-                       'packages', 'current', 'version', 'php_version', 'mysql_version', 'new_bundled', 'partial_version', 'notify_email' ), '' ) );
+                       'packages', 'current', 'version', 'php_version', 'mysql_version', 'new_bundled', 'partial_version', 'notify_email', 'support_email', 'new_files' ), '' ) );

        }
 
        $updates = new stdClass();
        }
 
        $updates = new stdClass();


@@ -146,7 +159,20 @@ function wp_version_check( $extra_stats = array() ) {
        if ( isset( $body['translations'] ) )
                $updates->translations = $body['translations'];
 
        if ( isset( $body['translations'] ) )
                $updates->translations = $body['translations'];
 

-       set_site_transient( 'update_core',  $updates);
+       set_site_transient( 'update_core', $updates );
+
+       if ( ! empty( $body['ttl'] ) ) {
+               $ttl = (int) $body['ttl'];
+               if ( $ttl && ( time() + $ttl < wp_next_scheduled( 'wp_version_check' ) ) ) {
+                       // Queue an event to re-run the update check in $ttl seconds.
+                       wp_schedule_single_event( time() + $ttl, 'wp_version_check' );
+               }
+       }
+
+       // Trigger background updates if running non-interactively, and we weren't called from the update handler.
+       if ( defined( 'DOING_CRON' ) && DOING_CRON && ! doing_action( 'wp_maybe_auto_update' ) ) {
+               do_action( 'wp_maybe_auto_update' );
+       }

 }
 
 /**
 }
 
 /**


@@ -156,18 +182,18 @@ function wp_version_check( $extra_stats = array() ) {
  * all plugins installed. Checks against the WordPress server at
  * api.wordpress.org. Will only check if WordPress isn't installing.
  *
  * all plugins installed. Checks against the WordPress server at
  * api.wordpress.org. Will only check if WordPress isn't installing.
  *

- * @package WordPress

  * @since 2.3.0
  * @since 2.3.0

- * @uses $wp_version Used to notify the WordPress version.
+ * @global string $wp_version Used to notify the WordPress version.

  *
  * @param array $extra_stats Extra statistics to report to the WordPress.org API.
  *
  * @param array $extra_stats Extra statistics to report to the WordPress.org API.

- * @return mixed Returns null if update is unsupported. Returns false if check is too soon.

  */
 function wp_update_plugins( $extra_stats = array() ) {
  */
 function wp_update_plugins( $extra_stats = array() ) {

-       include ABSPATH . WPINC . '/version.php'; // include an unmodified $wp_version
+       if ( wp_installing() ) {
+               return;
+       }

 
 

-       if ( defined('WP_INSTALLING') )
-               return false;
+       // include an unmodified $wp_version
+       include( ABSPATH . WPINC . '/version.php' );

 
        // If running blog-side, bail unless we've not checked in the last 12 hours
        if ( !function_exists( 'get_plugins' ) )
 
        // If running blog-side, bail unless we've not checked in the last 12 hours
        if ( !function_exists( 'get_plugins' ) )


@@ -197,7 +223,11 @@ function wp_update_plugins( $extra_stats = array() ) {
                        $timeout = HOUR_IN_SECONDS;
                        break;
                default :
                        $timeout = HOUR_IN_SECONDS;
                        break;
                default :

-                       $timeout = 12 * HOUR_IN_SECONDS;
+                       if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
+                               $timeout = 0;
+                       } else {
+                               $timeout = 12 * HOUR_IN_SECONDS;
+                       }

        }
 
        $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
        }
 
        $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );


@@ -221,8 +251,9 @@ function wp_update_plugins( $extra_stats = array() ) {
                }
 
                // Bail if we've checked recently and if nothing has changed
                }
 
                // Bail if we've checked recently and if nothing has changed

-               if ( ! $plugin_changed )
-                       return false;
+               if ( ! $plugin_changed ) {
+                       return;
+               }

        }
 
        // Update last_checked for current to prevent multiple blocking requests if request hangs
        }
 
        // Update last_checked for current to prevent multiple blocking requests if request hangs


@@ -231,28 +262,39 @@ function wp_update_plugins( $extra_stats = array() ) {
 
        $to_send = compact( 'plugins', 'active' );
 
 
        $to_send = compact( 'plugins', 'active' );
 

-       $locales = array( get_locale() );
+       $locales = array_values( get_available_languages() );
+

        /**
         * Filter the locales requested for plugin translations.
         *
         * @since 3.7.0
        /**
         * Filter the locales requested for plugin translations.
         *
         * @since 3.7.0

+        * @since 4.5.0 The default value of the `$locales` parameter changed to include all locales.

         *
         *

-        * @param array $locales Plugin locale. Default is current locale of the site.
+        * @param array $locales Plugin locales. Default is all available locales of the site.

         */
        $locales = apply_filters( 'plugins_update_check_locales', $locales );
         */
        $locales = apply_filters( 'plugins_update_check_locales', $locales );

+       $locales = array_unique( $locales );
+
+       if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
+               $timeout = 30;
+       } else {
+               // Three seconds, plus one extra second for every 10 plugins
+               $timeout = 3 + (int) ( count( $plugins ) / 10 );
+       }

 
        $options = array(
 
        $options = array(

-               'timeout' => ( ( defined('DOING_CRON') && DOING_CRON ) ? 30 : 3),
+               'timeout' => $timeout,

                'body' => array(
                'body' => array(

-                       'plugins'      => json_encode( $to_send ),
-                       'translations' => json_encode( $translations ),
-                       'locale'       => json_encode( $locales ),
+                       'plugins'      => wp_json_encode( $to_send ),
+                       'translations' => wp_json_encode( $translations ),
+                       'locale'       => wp_json_encode( $locales ),
+                       'all'          => wp_json_encode( true ),

                ),
                'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
        );
 
        if ( $extra_stats ) {
                ),
                'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
        );
 
        if ( $extra_stats ) {

-               $options['body']['update_stats'] = json_encode( $extra_stats );
+               $options['body']['update_stats'] = wp_json_encode( $extra_stats );

        }
 
        $url = $http_url = 'http://api.wordpress.org/plugins/update-check/1.1/';
        }
 
        $url = $http_url = 'http://api.wordpress.org/plugins/update-check/1.1/';


@@ -261,25 +303,39 @@ function wp_update_plugins( $extra_stats = array() ) {
 
        $raw_response = wp_remote_post( $url, $options );
        if ( $ssl && is_wp_error( $raw_response ) ) {
 
        $raw_response = wp_remote_post( $url, $options );
        if ( $ssl && is_wp_error( $raw_response ) ) {

-               trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="http://wordpress.org/support/">support forums</a>.' ) . ' ' . '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)', headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );
+               trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );

                $raw_response = wp_remote_post( $http_url, $options );
        }
 
                $raw_response = wp_remote_post( $http_url, $options );
        }
 

-       if ( is_wp_error( $raw_response ) || 200 != wp_remote_retrieve_response_code( $raw_response ) )
-               return false;
+       if ( is_wp_error( $raw_response ) || 200 != wp_remote_retrieve_response_code( $raw_response ) ) {
+               return;
+       }

 
        $response = json_decode( wp_remote_retrieve_body( $raw_response ), true );
        foreach ( $response['plugins'] as &$plugin ) {
                $plugin = (object) $plugin;
 
        $response = json_decode( wp_remote_retrieve_body( $raw_response ), true );
        foreach ( $response['plugins'] as &$plugin ) {
                $plugin = (object) $plugin;

+               if ( isset( $plugin->compatibility ) ) {
+                       $plugin->compatibility = (object) $plugin->compatibility;
+                       foreach ( $plugin->compatibility as &$data ) {
+                               $data = (object) $data;
+                       }
+               }
+       }
+       unset( $plugin, $data );
+       foreach ( $response['no_update'] as &$plugin ) {
+               $plugin = (object) $plugin;

        }
        unset( $plugin );
 
        if ( is_array( $response ) ) {
                $new_option->response = $response['plugins'];
                $new_option->translations = $response['translations'];
        }
        unset( $plugin );
 
        if ( is_array( $response ) ) {
                $new_option->response = $response['plugins'];
                $new_option->translations = $response['translations'];

+               // TODO: Perhaps better to store no_update in a separate transient with an expiry?
+               $new_option->no_update = $response['no_update'];

        } else {
                $new_option->response = array();
                $new_option->translations = array();
        } else {
                $new_option->response = array();
                $new_option->translations = array();

+               $new_option->no_update = array();

        }
 
        set_site_transient( 'update_plugins', $new_option );
        }
 
        set_site_transient( 'update_plugins', $new_option );


@@ -292,18 +348,17 @@ function wp_update_plugins( $extra_stats = array() ) {
  * WordPress server at api.wordpress.org. Will only check if WordPress isn't
  * installing.
  *
  * WordPress server at api.wordpress.org. Will only check if WordPress isn't
  * installing.
  *

- * @package WordPress

  * @since 2.7.0
  * @since 2.7.0

- * @uses $wp_version Used to notify the WordPress version.

  *
  * @param array $extra_stats Extra statistics to report to the WordPress.org API.
  *
  * @param array $extra_stats Extra statistics to report to the WordPress.org API.

- * @return mixed Returns null if update is unsupported. Returns false if check is too soon.

  */
 function wp_update_themes( $extra_stats = array() ) {
  */
 function wp_update_themes( $extra_stats = array() ) {

-       include ABSPATH . WPINC . '/version.php'; // include an unmodified $wp_version
+       if ( wp_installing() ) {
+               return;
+       }

 
 

-       if ( defined( 'WP_INSTALLING' ) )
-               return false;
+       // include an unmodified $wp_version
+       include( ABSPATH . WPINC . '/version.php' );

 
        $installed_themes = wp_get_themes();
        $translations = wp_get_installed_translations( 'themes' );
 
        $installed_themes = wp_get_themes();
        $translations = wp_get_installed_translations( 'themes' );


@@ -344,7 +399,11 @@ function wp_update_themes( $extra_stats = array() ) {
                        $timeout = HOUR_IN_SECONDS;
                        break;
                default :
                        $timeout = HOUR_IN_SECONDS;
                        break;
                default :

-                       $timeout = 12 * HOUR_IN_SECONDS;
+                       if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
+                               $timeout = 0;
+                       } else {
+                               $timeout = 12 * HOUR_IN_SECONDS;
+                       }

        }
 
        $time_not_changed = isset( $last_update->last_checked ) && $timeout > ( time() - $last_update->last_checked );
        }
 
        $time_not_changed = isset( $last_update->last_checked ) && $timeout > ( time() - $last_update->last_checked );


@@ -366,8 +425,9 @@ function wp_update_themes( $extra_stats = array() ) {
                }
 
                // Bail if we've checked recently and if nothing has changed
                }
 
                // Bail if we've checked recently and if nothing has changed

-               if ( ! $theme_changed )
-                       return false;
+               if ( ! $theme_changed ) {
+                       return;
+               }

        }
 
        // Update last_checked for current to prevent multiple blocking requests if request hangs
        }
 
        // Update last_checked for current to prevent multiple blocking requests if request hangs


@@ -376,28 +436,38 @@ function wp_update_themes( $extra_stats = array() ) {
 
        $request['themes'] = $themes;
 
 
        $request['themes'] = $themes;
 

-       $locales = array( get_locale() );
+       $locales = array_values( get_available_languages() );
+

        /**
         * Filter the locales requested for theme translations.
         *
         * @since 3.7.0
        /**
         * Filter the locales requested for theme translations.
         *
         * @since 3.7.0

+        * @since 4.5.0 The default value of the `$locales` parameter changed to include all locales.

         *
         *

-        * @param array $locales Theme locale. Default is current locale of the site.
+        * @param array $locales Theme locales. Default is all available locales of the site.

         */
        $locales = apply_filters( 'themes_update_check_locales', $locales );
         */
        $locales = apply_filters( 'themes_update_check_locales', $locales );

+       $locales = array_unique( $locales );
+
+       if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
+               $timeout = 30;
+       } else {
+               // Three seconds, plus one extra second for every 10 themes
+               $timeout = 3 + (int) ( count( $themes ) / 10 );
+       }

 
        $options = array(
 
        $options = array(

-               'timeout' => ( ( defined('DOING_CRON') && DOING_CRON ) ? 30 : 3),
+               'timeout' => $timeout,

                'body' => array(
                'body' => array(

-                       'themes'       => json_encode( $request ),
-                       'translations' => json_encode( $translations ),
-                       'locale'       => json_encode( $locales ),
+                       'themes'       => wp_json_encode( $request ),
+                       'translations' => wp_json_encode( $translations ),
+                       'locale'       => wp_json_encode( $locales ),

                ),
                'user-agent'    => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
        );
 
        if ( $extra_stats ) {
                ),
                'user-agent'    => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
        );
 
        if ( $extra_stats ) {

-               $options['body']['update_stats'] = json_encode( $extra_stats );
+               $options['body']['update_stats'] = wp_json_encode( $extra_stats );

        }
 
        $url = $http_url = 'http://api.wordpress.org/themes/update-check/1.1/';
        }
 
        $url = $http_url = 'http://api.wordpress.org/themes/update-check/1.1/';


@@ -406,12 +476,13 @@ function wp_update_themes( $extra_stats = array() ) {
 
        $raw_response = wp_remote_post( $url, $options );
        if ( $ssl && is_wp_error( $raw_response ) ) {
 
        $raw_response = wp_remote_post( $url, $options );
        if ( $ssl && is_wp_error( $raw_response ) ) {

-               trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="http://wordpress.org/support/">support forums</a>.' ) . ' ' . '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)', headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );
+               trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );

                $raw_response = wp_remote_post( $http_url, $options );
        }
 
                $raw_response = wp_remote_post( $http_url, $options );
        }
 

-       if ( is_wp_error( $raw_response ) || 200 != wp_remote_retrieve_response_code( $raw_response ) )
-               return false;
+       if ( is_wp_error( $raw_response ) || 200 != wp_remote_retrieve_response_code( $raw_response ) ) {
+               return;
+       }

 
        $new_update = new stdClass;
        $new_update->last_checked = time();
 
        $new_update = new stdClass;
        $new_update->last_checked = time();


@@ -433,8 +504,8 @@ function wp_update_themes( $extra_stats = array() ) {
  * @since 3.7.0
  */
 function wp_maybe_auto_update() {
  * @since 3.7.0
  */
 function wp_maybe_auto_update() {

-       include_once ABSPATH . '/wp-admin/includes/admin.php';
-       include_once ABSPATH . '/wp-admin/includes/class-wp-upgrader.php';
+       include_once( ABSPATH . '/wp-admin/includes/admin.php' );
+       include_once( ABSPATH . '/wp-admin/includes/class-wp-upgrader.php' );

 
        $upgrader = new WP_Automatic_Updater;
        $upgrader->run();
 
        $upgrader = new WP_Automatic_Updater;
        $upgrader->run();


@@ -444,12 +515,13 @@ function wp_maybe_auto_update() {
  * Retrieves a list of all language updates available.
  *
  * @since 3.7.0
  * Retrieves a list of all language updates available.
  *
  * @since 3.7.0

+ *
+ * @return array

  */
 function wp_get_translation_updates() {
        $updates = array();
        $transients = array( 'update_core' => 'core', 'update_plugins' => 'plugin', 'update_themes' => 'theme' );
        foreach ( $transients as $transient => $type ) {
  */
 function wp_get_translation_updates() {
        $updates = array();
        $transients = array( 'update_core' => 'core', 'update_plugins' => 'plugin', 'update_themes' => 'theme' );
        foreach ( $transients as $transient => $type ) {

-

                $transient = get_site_transient( $transient );
                if ( empty( $transient->translations ) )
                        continue;
                $transient = get_site_transient( $transient );
                if ( empty( $transient->translations ) )
                        continue;


@@ -458,11 +530,10 @@ function wp_get_translation_updates() {
                        $updates[] = (object) $translation;
                }
        }
                        $updates[] = (object) $translation;
                }
        }

-

        return $updates;
 }
 
        return $updates;
 }
 

-/*
+/**

  * Collect counts and UI strings for available updates
  *
  * @since 3.3.0
  * Collect counts and UI strings for available updates
  *
  * @since 3.3.0


@@ -523,17 +594,24 @@ function wp_get_update_data() {
        return apply_filters( 'wp_get_update_data', $update_data, $titles );
 }
 
        return apply_filters( 'wp_get_update_data', $update_data, $titles );
 }
 

+/**
+ * Determines whether core should be updated.
+ *
+ * @since 2.8.0
+ *
+ * @global string $wp_version
+ */

 function _maybe_update_core() {
 function _maybe_update_core() {

-       include ABSPATH . WPINC . '/version.php'; // include an unmodified $wp_version
+       // include an unmodified $wp_version
+       include( ABSPATH . WPINC . '/version.php' );

 
        $current = get_site_transient( 'update_core' );
 
 
        $current = get_site_transient( 'update_core' );
 

-       if ( isset( $current->last_checked ) &&
+       if ( isset( $current->last_checked, $current->version_checked ) &&

                12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) &&
                12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) &&

-               isset( $current->version_checked ) &&
-               $current->version_checked == $wp_version )
+               $current->version_checked == $wp_version ) {

                return;
                return;

-
+       }

        wp_version_check();
 }
 /**
        wp_version_check();
 }
 /**


@@ -566,7 +644,6 @@ function _maybe_update_themes() {
        $current = get_site_transient( 'update_themes' );
        if ( isset( $current->last_checked ) && 12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) )
                return;
        $current = get_site_transient( 'update_themes' );
        if ( isset( $current->last_checked ) && 12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) )
                return;

-

        wp_update_themes();
 }
 
        wp_update_themes();
 }
 


@@ -576,32 +653,34 @@ function _maybe_update_themes() {
  * @since 3.1.0
  */
 function wp_schedule_update_checks() {
  * @since 3.1.0
  */
 function wp_schedule_update_checks() {

-       if ( !wp_next_scheduled('wp_version_check') && !defined('WP_INSTALLING') )
+       if ( ! wp_next_scheduled( 'wp_version_check' ) && ! wp_installing() )

                wp_schedule_event(time(), 'twicedaily', 'wp_version_check');
 
                wp_schedule_event(time(), 'twicedaily', 'wp_version_check');
 

-       if ( !wp_next_scheduled('wp_update_plugins') && !defined('WP_INSTALLING') )
+       if ( ! wp_next_scheduled( 'wp_update_plugins' ) && ! wp_installing() )

                wp_schedule_event(time(), 'twicedaily', 'wp_update_plugins');
 
                wp_schedule_event(time(), 'twicedaily', 'wp_update_plugins');
 

-       if ( !wp_next_scheduled('wp_update_themes') && !defined('WP_INSTALLING') )
+       if ( ! wp_next_scheduled( 'wp_update_themes' ) && ! wp_installing() )

                wp_schedule_event(time(), 'twicedaily', 'wp_update_themes');
                wp_schedule_event(time(), 'twicedaily', 'wp_update_themes');

+}

 
 

-       if ( ! wp_next_scheduled( 'wp_maybe_auto_update' ) && ! defined( 'WP_INSTALLING' ) ) {
-               // Schedule auto updates for 7 a.m. and 7 p.m. in the timezone of the site.
-               $next = strtotime( 'today 7am' );
-               $now = time();
-               // Find the next instance of 7 a.m. or 7 p.m., but skip it if it is within 3 hours from now.
-               while ( ( $now + 3 * HOUR_IN_SECONDS ) > $next ) {
-                       $next += 12 * HOUR_IN_SECONDS;
-               }
-               $next = $next - get_option( 'gmt_offset' ) * HOUR_IN_SECONDS;
-               // Add a random number of minutes, so we don't have all sites trying to update exactly on the hour
-               $next = $next + rand( 0, 59 ) * MINUTE_IN_SECONDS;
-               wp_schedule_event( $next, 'twicedaily', 'wp_maybe_auto_update' );
+/**
+ * Clear existing update caches for plugins, themes, and core.
+ *
+ * @since 4.1.0
+ */
+function wp_clean_update_cache() {
+       if ( function_exists( 'wp_clean_plugins_cache' ) ) {
+               wp_clean_plugins_cache();
+       } else {
+               delete_site_transient( 'update_plugins' );

        }
        }

+       wp_clean_themes_cache();
+       delete_site_transient( 'update_core' );

 }
 
 }
 

-if ( ( ! is_main_site() && ! is_network_admin() ) || ( defined( 'DOING_AJAX' ) && DOING_AJAX ) )
+if ( ( ! is_main_site() && ! is_network_admin() ) || ( defined( 'DOING_AJAX' ) && DOING_AJAX ) ) {

        return;
        return;

+}

 
 add_action( 'admin_init', '_maybe_update_core' );
 add_action( 'wp_version_check', 'wp_version_check' );
 
 add_action( 'admin_init', '_maybe_update_core' );
 add_action( 'wp_version_check', 'wp_version_check' );


@@ -621,6 +700,8 @@ add_action( 'admin_init', '_maybe_update_themes' );
 add_action( 'wp_update_themes', 'wp_update_themes' );
 add_action( 'upgrader_process_complete', 'wp_update_themes', 10, 0 );
 
 add_action( 'wp_update_themes', 'wp_update_themes' );
 add_action( 'upgrader_process_complete', 'wp_update_themes', 10, 0 );
 

+add_action( 'update_option_WPLANG', 'wp_clean_update_cache' , 10, 0 );
+

 add_action( 'wp_maybe_auto_update', 'wp_maybe_auto_update' );
 
 add_action( 'wp_maybe_auto_update', 'wp_maybe_auto_update' );
 

-add_action('init', 'wp_schedule_update_checks');
+add_action( 'init', 'wp_schedule_update_checks' );