Update to WordPress 6.4.2. For more information, see https://wordpres…

…s.org/news/2023/12/wordpress-6-4-2-maintenance-security-release/

wp-admin/about.php

@@ -45,15 +45,15 @@
 
 		<div class="about__section changelog has-subtle-background-color">
 			<div class="column">
-				<h2><?php _e( 'Maintenance Release' ); ?></h2>
+				<h2><?php _e( 'Maintenance and Security Releases' ); ?></h2>
 				<p>
 					<?php
 					printf(
 						/* translators: 1: WordPress version number, 2: Plural number of bugs. */
 						_n(
 							'<strong>Version %1$s</strong> addressed %2$s bug.',
 							'<strong>Version %1$s</strong> addressed %2$s bugs.',
-							10
+							4
 						),
 						'6.4.1',
 						'4'
@@ -71,6 +71,31 @@
 					);
 					?>
 				</p>
+				<p>
+					<?php
+					printf(
+						/* translators: 1: WordPress version number, 2: Plural number of bugs. */
+						_n(
+							'<strong>Version %1$s</strong> addressed a security issue and fixed %2$s bug.',
+							'<strong>Version %1$s</strong> addressed a security issue and fixed %2$s bugs.',
+							7
+						),
+						'6.4.2',
+						'7'
+					);
+					?>
+					<?php
+					printf(
+						/* translators: %s: HelpHub URL. */
+						__( 'For more information, see <a href="%s">the release notes</a>.' ),
+						sprintf(
+							/* translators: %s: WordPress version. */
+							esc_url( __( 'https://wordpress.org/support/wordpress-version/version-%s/' ) ),
+							sanitize_title( '6.4.2' )
+						)
+					);
+					?>
+				</p>
 			</div>
 		</div>
 
@@ -272,7 +297,7 @@
 				<p style="margin-top:calc(var(--gap) / 2);">
 					<?php
 					printf(
-						/* translators: %s: WordPress Field Guide link. */
+						/* translators: 1: WordPress Field Guide link, 2: WordPress version number. */
 						__( 'Explore the <a href="%1$s">WordPress %2$s Field Guide</a>. Learn about the changes in this release with detailed developer notes to help you build with WordPress.' ),
 						__( 'https://make.wordpress.org/core/2023/10/23/wordpress-6-4-field-guide/' ),
 						'6.4'

wp-admin/css/about-rtl.css

@@ -535,8 +535,8 @@
 	position: relative;
 	display: flex;
 	flex-direction: column;
-	align-items: start;
-	justify-content: end;
+	align-items: flex-start;
+	justify-content: flex-end;
 	box-sizing: border-box;
 	padding: var(--gap) 0;
 	height: clamp(12.5rem, -1.25rem + 36.67vw, 26.25rem);
@@ -1127,7 +1127,7 @@
 }
 
 .about-wrap .is-vertically-aligned-top {
-	align-self: start;
+	align-self: flex-start;
 }
 
 .about-wrap .is-vertically-aligned-center {

wp-admin/css/about.css

@@ -534,8 +534,8 @@
 	position: relative;
 	display: flex;
 	flex-direction: column;
-	align-items: start;
-	justify-content: end;
+	align-items: flex-start;
+	justify-content: flex-end;
 	box-sizing: border-box;
 	padding: var(--gap) 0;
 	height: clamp(12.5rem, -1.25rem + 36.67vw, 26.25rem);
@@ -1126,7 +1126,7 @@
 }
 
 .about-wrap .is-vertically-aligned-top {
-	align-self: start;
+	align-self: flex-start;
 }
 
 .about-wrap .is-vertically-aligned-center {

wp-includes/block-patterns.php

@@ -324,7 +324,7 @@ function _register_remote_theme_patterns() {
  * @since 6.0.0
  * @since 6.1.0 The `postTypes` property was added.
  * @since 6.2.0 The `templateTypes` property was added.
- * @since 6.4.0 Uses the `_wp_get_block_patterns` function.
+ * @since 6.4.0 Uses the `WP_Theme::get_block_patterns` method.
  * @access private
  */
 function _register_theme_block_patterns() {

wp-includes/block-template-utils.php

@@ -518,12 +518,12 @@ function _remove_theme_attribute_from_template_part_block( &$block ) {
  */
 function _build_block_template_result_from_file( $template_file, $template_type ) {
 	$default_template_types = get_default_block_template_types();
-	$template_content       = file_get_contents( $template_file['path'] );
 	$theme                  = get_stylesheet();
 
 	$template                 = new WP_Block_Template();
 	$template->id             = $theme . '//' . $template_file['slug'];
 	$template->theme          = $theme;
+	$template->content        = file_get_contents( $template_file['path'] );
 	$template->slug           = $template_file['slug'];
 	$template->source         = 'theme';
 	$template->type           = $template_type;
@@ -554,7 +554,7 @@ function _build_block_template_result_from_file( $template_file, $template_type
 		$before_block_visitor = make_before_block_visitor( $hooked_blocks, $template );
 		$after_block_visitor  = make_after_block_visitor( $hooked_blocks, $template );
 	}
-	$blocks            = parse_blocks( $template_content );
+	$blocks            = parse_blocks( $template->content );
 	$template->content = traverse_and_serialize_blocks( $blocks, $before_block_visitor, $after_block_visitor );
 
 	return $template;

wp-includes/html-api/class-wp-html-tag-processor.php

@@ -116,7 +116,7 @@
  *
  * Example:
  *
- *     if ( $tags->next_tag( array( 'class' => 'wp-group-block' ) ) ) {
+ *     if ( $tags->next_tag( array( 'class_name' => 'wp-group-block' ) ) ) {
  *         $tags->set_attribute( 'title', 'This groups the contained content.' );
  *         $tags->remove_attribute( 'data-test-id' );
  *     }

wp-includes/html-api/class-wp-html-token.php

@@ -94,4 +94,13 @@ public function __destruct() {
 			call_user_func( $this->on_destroy, $this->bookmark_name );
 		}
 	}
+
+	/**
+	 * Wakeup magic method.
+	 *
+	 * @since 6.4.2
+	 */
+	public function __wakeup() {
+		throw new \LogicException( __CLASS__ . ' should never be unserialized' );
+	}
 }

wp-includes/ms-blogs.php

@@ -491,8 +491,6 @@ function update_blog_option( $id, $option, $value, $deprecated = null ) {
  * @global array           $_wp_switched_stack
  * @global bool            $switched
  * @global string          $table_prefix
- * @global string          $wp_template_path
- * @global string          $wp_stylesheet_path
  * @global WP_Object_Cache $wp_object_cache
  *
  * @param int  $new_blog_id The ID of the blog to switch to. Default: current blog.
@@ -534,10 +532,8 @@ function switch_to_blog( $new_blog_id, $deprecated = null ) {
 	}
 
 	$wpdb->set_blog_id( $new_blog_id );
-	$GLOBALS['table_prefix']       = $wpdb->get_blog_prefix();
-	$GLOBALS['blog_id']            = $new_blog_id;
-	$GLOBALS['wp_template_path']   = null;
-	$GLOBALS['wp_stylesheet_path'] = null;
+	$GLOBALS['table_prefix'] = $wpdb->get_blog_prefix();
+	$GLOBALS['blog_id']      = $new_blog_id;
 
 	if ( function_exists( 'wp_cache_switch_to_blog' ) ) {
 		wp_cache_switch_to_blog( $new_blog_id );
@@ -604,8 +600,6 @@ function switch_to_blog( $new_blog_id, $deprecated = null ) {
  * @global int             $blog_id
  * @global bool            $switched
  * @global string          $table_prefix
- * @global string          $wp_template_path
- * @global string          $wp_stylesheet_path
  * @global WP_Object_Cache $wp_object_cache
  *
  * @return bool True on success, false if we're already on the current blog.
@@ -631,10 +625,8 @@ function restore_current_blog() {
 	}
 
 	$wpdb->set_blog_id( $new_blog_id );
-	$GLOBALS['blog_id']            = $new_blog_id;
-	$GLOBALS['table_prefix']       = $wpdb->get_blog_prefix();
-	$GLOBALS['wp_template_path']   = null;
-	$GLOBALS['wp_stylesheet_path'] = null;
+	$GLOBALS['blog_id']      = $new_blog_id;
+	$GLOBALS['table_prefix'] = $wpdb->get_blog_prefix();
 
 	if ( function_exists( 'wp_cache_switch_to_blog' ) ) {
 		wp_cache_switch_to_blog( $new_blog_id );

wp-includes/rest-api/class-wp-rest-server.php

@@ -1294,6 +1294,13 @@ public function get_index( $request ) {
 			$this->add_active_theme_link_to_index( $response );
 			$this->add_site_logo_to_index( $response );
 			$this->add_site_icon_to_index( $response );
+		} else {
+			if ( rest_is_field_included( 'site_logo', $fields ) ) {
+				$this->add_site_logo_to_index( $response );
+			}
+			if ( rest_is_field_included( 'site_icon', $fields ) || rest_is_field_included( 'site_icon_url', $fields ) ) {
+				$this->add_site_icon_to_index( $response );
+			}
 		}
 
 		/**

wp-includes/theme.php

@@ -188,39 +188,25 @@ function get_stylesheet() {
  *
  * @since 1.5.0
  * @since 6.4.0 Memoizes filter execution so that it only runs once for the current theme.
- *
- * @global string $wp_stylesheet_path Current theme stylesheet directory path.
+ * @since 6.4.2 Memoization removed.
  *
  * @return string Path to active theme's stylesheet directory.
  */
 function get_stylesheet_directory() {
-	global $wp_stylesheet_path;
-
-	if ( null === $wp_stylesheet_path ) {
-		$stylesheet     = get_stylesheet();
-		$theme_root     = get_theme_root( $stylesheet );
-		$stylesheet_dir = "$theme_root/$stylesheet";
-
-		/**
-		 * Filters the stylesheet directory path for the active theme.
-		 *
-		 * @since 1.5.0
-		 *
-		 * @param string $stylesheet_dir Absolute path to the active theme.
-		 * @param string $stylesheet     Directory name of the active theme.
-		 * @param string $theme_root     Absolute path to themes directory.
-		 */
-		$stylesheet_dir = apply_filters( 'stylesheet_directory', $stylesheet_dir, $stylesheet, $theme_root );
-
-		// If there are filter callbacks, force the logic to execute on every call.
-		if ( has_filter( 'stylesheet' ) || has_filter( 'theme_root' ) || has_filter( 'stylesheet_directory' ) ) {
-			return $stylesheet_dir;
-		}
+	$stylesheet     = get_stylesheet();
+	$theme_root     = get_theme_root( $stylesheet );
+	$stylesheet_dir = "$theme_root/$stylesheet";
 
-		$wp_stylesheet_path = $stylesheet_dir;
-	}
-
-	return $wp_stylesheet_path;
+	/**
+	 * Filters the stylesheet directory path for the active theme.
+	 *
+	 * @since 1.5.0
+	 *
+	 * @param string $stylesheet_dir Absolute path to the active theme.
+	 * @param string $stylesheet     Directory name of the active theme.
+	 * @param string $theme_root     Absolute path to themes directory.
+	 */
+	return apply_filters( 'stylesheet_directory', $stylesheet_dir, $stylesheet, $theme_root );
 }
 
 /**
@@ -338,39 +324,25 @@ function get_template() {
  *
  * @since 1.5.0
  * @since 6.4.0 Memoizes filter execution so that it only runs once for the current theme.
- *
- * @global string $wp_template_path Current theme template directory path.
+ * @since 6.4.1 Memoization removed.
  *
  * @return string Path to active theme's template directory.
  */
 function get_template_directory() {
-	global $wp_template_path;
-
-	if ( null === $wp_template_path ) {
-		$template     = get_template();
-		$theme_root   = get_theme_root( $template );
-		$template_dir = "$theme_root/$template";
+	$template     = get_template();
+	$theme_root   = get_theme_root( $template );
+	$template_dir = "$theme_root/$template";
 
-		/**
-		 * Filters the active theme directory path.
-		 *
-		 * @since 1.5.0
-		 *
-		 * @param string $template_dir The path of the active theme directory.
-		 * @param string $template     Directory name of the active theme.
-		 * @param string $theme_root   Absolute path to the themes directory.
-		 */
-		$template_dir = apply_filters( 'template_directory', $template_dir, $template, $theme_root );
-
-		// If there are filter callbacks, force the logic to execute on every call.
-		if ( has_filter( 'template' ) || has_filter( 'theme_root' ) || has_filter( 'template_directory' ) ) {
-			return $template_dir;
-		}
-
-		$wp_template_path = $template_dir;
-	}
-
-	return $wp_template_path;
+	/**
+	 * Filters the active theme directory path.
+	 *
+	 * @since 1.5.0
+	 *
+	 * @param string $template_dir The path of the active theme directory.
+	 * @param string $template     Directory name of the active theme.
+	 * @param string $theme_root   Absolute path to the themes directory.
+	 */
+	return apply_filters( 'template_directory', $template_dir, $template, $theme_root );
 }
 
 /**
@@ -776,13 +748,11 @@ function locale_stylesheet() {
  * @global WP_Customize_Manager $wp_customize
  * @global array                $sidebars_widgets
  * @global array                $wp_registered_sidebars
- * @global string               $wp_stylesheet_path
- * @global string               $wp_template_path
  *
  * @param string $stylesheet Stylesheet name.
  */
 function switch_theme( $stylesheet ) {
-	global $wp_theme_directories, $wp_customize, $sidebars_widgets, $wp_registered_sidebars, $wp_stylesheet_path, $wp_template_path;
+	global $wp_theme_directories, $wp_customize, $sidebars_widgets, $wp_registered_sidebars;
 
 	$requirements = validate_theme_requirements( $stylesheet );
 	if ( is_wp_error( $requirements ) ) {
@@ -866,13 +836,6 @@ function switch_theme( $stylesheet ) {
 
 	update_option( 'theme_switched', $old_theme->get_stylesheet() );
 
-	/*
-	 * Reset globals to force refresh the next time these directories are
-	 * accessed via `get_stylesheet_directory()` / `get_template_directory()`.
-	 */
-	$wp_stylesheet_path = null;
-	$wp_template_path   = null;
-
 	// Clear pattern caches.
 	$new_theme->delete_pattern_cache();
 	$old_theme->delete_pattern_cache();

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.4.1';
+$wp_version = '6.4.2';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.