diff --git a/wp-admin/includes/translation-install.php b/wp-admin/includes/translation-install.php
index f18bbecd9c..67609836b9 100644
--- a/wp-admin/includes/translation-install.php
+++ b/wp-admin/includes/translation-install.php
@@ -14,7 +14,24 @@
  *
  * @param string       $type Type of translations. Accepts 'plugins', 'themes', 'core'.
  * @param array|object $args Translation API arguments. Optional.
- * @return array|WP_Error On success an associative array of translations, WP_Error on failure.
+ * @return array|WP_Error {
+ *     On success an associative array of translations, WP_Error on failure.
+ *
+ *     @type array $translations {
+ *         List of translations, each an array of data.
+ *
+ *         @type array ...$0 {
+ *             @type string   $language     Language code.
+ *             @type string   $version      WordPress version.
+ *             @type string   $updated      Date the translation was last updated, in MySQL datetime format.
+ *             @type string   $english_name English name of the language.
+ *             @type string   $native_name  Native name of the language.
+ *             @type string   $package      URL to download the translation package.
+ *             @type string[] $iso          Array of ISO language codes.
+ *             @type array    $strings      Array of translated strings used in the installation process.
+ *         }
+ *     }
+ * }
  */
 function translations_api( $type, $args = null ) {
 	if ( ! in_array( $type, array( 'plugins', 'themes', 'core' ), true ) ) {
@@ -100,7 +117,24 @@ function translations_api( $type, $args = null ) {
 	 *
 	 * @since 4.0.0
 	 *
-	 * @param array|WP_Error $res  Response as an associative array or WP_Error.
+	 * @param array|WP_Error $res  {
+	 *     On success an associative array of translations, WP_Error on failure.
+	 *
+	 *     @type array $translations {
+	 *         List of translations, each an array of data.
+	 *
+	 *         @type array ...$0 {
+	 *             @type string   $language     Language code.
+	 *             @type string   $version      WordPress version.
+	 *             @type string   $updated      Date the translation was last updated, in MySQL datetime format.
+	 *             @type string   $english_name English name of the language.
+	 *             @type string   $native_name  Native name of the language.
+	 *             @type string   $package      URL to download the translation package.
+	 *             @type string[] $iso          Array of ISO language codes.
+	 *             @type array    $strings      Array of translated strings used in the installation process.
+	 *         }
+	 *     }
+	 * }
 	 * @param string         $type The type of translations being requested.
 	 * @param object         $args Translation API arguments.
 	 */
@@ -114,8 +148,21 @@ function translations_api( $type, $args = null ) {
  *
  * @see translations_api()
  *
- * @return array[] Array of translations, each an array of data, keyed by the language. If the API response results
- *                 in an error, an empty array will be returned.
+ * @return array {
+ *     Array of translations keyed by the language code, each an associative array of data.
+ *     If the API response results in an error, an empty array will be returned.
+ *
+ *     @type array ...$0 {
+ *         @type string   $language     Language code.
+ *         @type string   $version      WordPress version.
+ *         @type string   $updated      Date the translation was last updated, in MySQL datetime format.
+ *         @type string   $english_name English name of the language.
+ *         @type string   $native_name  Native name of the language.
+ *         @type string   $package      URL to download the translation package.
+ *         @type string[] $iso          Array of ISO language codes.
+ *         @type array    $strings      Array of translated strings used in the installation process.
+ *     }
+ * }
  */
 function wp_get_available_translations() {
 	if ( ! wp_installing() ) {
@@ -132,7 +179,7 @@ function wp_get_available_translations() {
 	}
 
 	$translations = array();
-	// Key the array with the language code for now.
+	// Key the array with the language code.
 	foreach ( $api['translations'] as $translation ) {
 		$translations[ $translation['language'] ] = $translation;
 	}
diff --git a/wp-includes/blocks.php b/wp-includes/blocks.php
index 9b24b989d4..1a8f3459c5 100644
--- a/wp-includes/blocks.php
+++ b/wp-includes/blocks.php
@@ -1432,7 +1432,7 @@ function get_comment_delimited_block_content( $block_name, $block_attributes, $b
  * @since 5.3.1
  *
  * @param array $block {
- *     A representative array of a single parsed block object. See WP_Block_Parser_Block.
+ *     An associative array of a single parsed block object. See WP_Block_Parser_Block.
  *
  *     @type string   $blockName    Name of block.
  *     @type array    $attrs        Attributes from block comment delimiters.
@@ -1473,7 +1473,7 @@ function serialize_block( $block ) {
  *     Array of block structures.
  *
  *     @type array ...$0 {
- *         A representative array of a single parsed block object. See WP_Block_Parser_Block.
+ *         An associative array of a single parsed block object. See WP_Block_Parser_Block.
  *
  *         @type string   $blockName    Name of block.
  *         @type array    $attrs        Attributes from block comment delimiters.
@@ -1515,7 +1515,7 @@ function serialize_blocks( $blocks ) {
  *
  * @see serialize_block()
  *
- * @param array    $block         A representative array of a single parsed block object. See WP_Block_Parser_Block.
+ * @param array    $block         An associative array of a single parsed block object. See WP_Block_Parser_Block.
  * @param callable $pre_callback  Callback to run on each block in the tree before it is traversed and serialized.
  *                                It is called with the following arguments: &$block, $parent_block, $previous_block.
  *                                Its string return value will be prepended to the serialized block markup.
@@ -1997,7 +1997,7 @@ function _excerpt_render_inner_blocks( $parsed_block, $allowed_blocks ) {
  * @global WP_Post $post The post to edit.
  *
  * @param array $parsed_block {
- *     A representative array of the block being rendered. See WP_Block_Parser_Block.
+ *     An associative array of the block being rendered. See WP_Block_Parser_Block.
  *
  *     @type string   $blockName    Name of block.
  *     @type array    $attrs        Attributes from block comment delimiters.
@@ -2021,7 +2021,7 @@ function render_block( $parsed_block ) {
 	 *
 	 * @param string|null   $pre_render   The pre-rendered content. Default null.
 	 * @param array         $parsed_block {
-	 *     A representative array of the block being rendered. See WP_Block_Parser_Block.
+	 *     An associative array of the block being rendered. See WP_Block_Parser_Block.
 	 *
 	 *     @type string   $blockName    Name of block.
 	 *     @type array    $attrs        Attributes from block comment delimiters.
@@ -2047,7 +2047,7 @@ function render_block( $parsed_block ) {
 	 * @since 5.9.0 The `$parent_block` parameter was added.
 	 *
 	 * @param array         $parsed_block {
-	 *     A representative array of the block being rendered. See WP_Block_Parser_Block.
+	 *     An associative array of the block being rendered. See WP_Block_Parser_Block.
 	 *
 	 *     @type string   $blockName    Name of block.
 	 *     @type array    $attrs        Attributes from block comment delimiters.
@@ -2095,7 +2095,7 @@ function render_block( $parsed_block ) {
 	 *
 	 * @param array         $context      Default context.
 	 * @param array         $parsed_block {
-	 *     A representative array of the block being rendered. See WP_Block_Parser_Block.
+	 *     An associative array of the block being rendered. See WP_Block_Parser_Block.
 	 *
 	 *     @type string   $blockName    Name of block.
 	 *     @type array    $attrs        Attributes from block comment delimiters.
@@ -2124,7 +2124,7 @@ function render_block( $parsed_block ) {
  *     Array of block structures.
  *
  *     @type array ...$0 {
- *         A representative array of a single parsed block object. See WP_Block_Parser_Block.
+ *         An associative array of a single parsed block object. See WP_Block_Parser_Block.
  *
  *         @type string   $blockName    Name of block.
  *         @type array    $attrs        Attributes from block comment delimiters.
diff --git a/wp-includes/class-wp-application-passwords.php b/wp-includes/class-wp-application-passwords.php
index 49c4e58b6b..38ec4915de 100644
--- a/wp-includes/class-wp-application-passwords.php
+++ b/wp-includes/class-wp-application-passwords.php
@@ -71,7 +71,7 @@ class WP_Application_Passwords {
 	 * @return array|WP_Error {
 	 *     Application password details, or a WP_Error instance if an error occurs.
 	 *
-	 *     @type string $0 The unhashed generated application password.
+	 *     @type string $0 The generated application password in plain text.
 	 *     @type array  $1 {
 	 *         The details about the created password.
 	 *
@@ -141,7 +141,7 @@ class WP_Application_Passwords {
 		 *     @type null   $last_used Null.
 		 *     @type null   $last_ip   Null.
 		 * }
-		 * @param string $new_password The unhashed generated application password.
+		 * @param string $new_password The generated application password in plain text.
 		 * @param array  $args         {
 		 *     Arguments used to create the application password.
 		 *
@@ -161,7 +161,7 @@ class WP_Application_Passwords {
 	 *
 	 * @param int $user_id User ID.
 	 * @return array {
-	 *     The list of app passwords.
+	 *     The list of application passwords.
 	 *
 	 *     @type array ...$0 {
 	 *         @type string      $uuid      The unique identifier for the application password.
@@ -204,7 +204,17 @@ class WP_Application_Passwords {
 	 *
 	 * @param int    $user_id User ID.
 	 * @param string $uuid    The password's UUID.
-	 * @return array|null The application password if found, null otherwise.
+	 * @return array|null {
+	 *     The application password if found, null otherwise.
+	 *
+	 *     @type string      $uuid      The unique identifier for the application password.
+	 *     @type string      $app_id    A UUID provided by the application to uniquely identify it.
+	 *     @type string      $name      The name of the application password.
+	 *     @type string      $password  A one-way hash of the password.
+	 *     @type int         $created   Unix timestamp of when the password was created.
+	 *     @type int|null    $last_used The Unix timestamp of the GMT date the application password was last used.
+	 *     @type string|null $last_ip   The IP address the application password was last used by.
+	 * }
 	 */
 	public static function get_user_application_password( $user_id, $uuid ) {
 		$passwords = static::get_user_application_passwords( $user_id );
@@ -246,7 +256,17 @@ class WP_Application_Passwords {
 	 *
 	 * @param int    $user_id User ID.
 	 * @param string $uuid    The password's UUID.
-	 * @param array  $update  Information about the application password to update.
+	 * @param array  $update  {
+	 *     Information about the application password to update.
+	 *
+	 *     @type string      $uuid      The unique identifier for the application password.
+	 *     @type string      $app_id    A UUID provided by the application to uniquely identify it.
+	 *     @type string      $name      The name of the application password.
+	 *     @type string      $password  A one-way hash of the password.
+	 *     @type int         $created   Unix timestamp of when the password was created.
+	 *     @type int|null    $last_used The Unix timestamp of the GMT date the application password was last used.
+	 *     @type string|null $last_ip   The IP address the application password was last used by.
+	 * }
 	 * @return true|WP_Error True if successful, otherwise a WP_Error instance is returned on error.
 	 */
 	public static function update_application_password( $user_id, $uuid, $update = array() ) {
@@ -282,7 +302,17 @@ class WP_Application_Passwords {
 			 * @since 5.6.0
 			 *
 			 * @param int   $user_id The user ID.
-			 * @param array $item    The updated app password details.
+			 * @param array $item    {
+			 *     The updated application password details.
+			 *
+			 *     @type string      $uuid      The unique identifier for the application password.
+			 *     @type string      $app_id    A UUID provided by the application to uniquely identify it.
+			 *     @type string      $name      The name of the application password.
+			 *     @type string      $password  A one-way hash of the password.
+			 *     @type int         $created   Unix timestamp of when the password was created.
+			 *     @type int|null    $last_used The Unix timestamp of the GMT date the application password was last used.
+			 *     @type string|null $last_ip   The IP address the application password was last used by.
+			 * }
 			 * @param array $update  The information to update.
 			 */
 			do_action( 'wp_update_application_password', $user_id, $item, $update );
@@ -404,9 +434,22 @@ class WP_Application_Passwords {
 	 * @since 5.6.0
 	 *
 	 * @param int   $user_id   User ID.
-	 * @param array $passwords Application passwords.
+	 * @param array $passwords {
+	 *     The list of application passwords.
 	 *
-	 * @return bool
+	 *     @type array ...$0 {
+	 *         @type string      $uuid      The unique identifier for the application password.
+	 *         @type string      $app_id    A UUID provided by the application to uniquely identify it.
+	 *         @type string      $name      The name of the application password.
+	 *         @type string      $password  A one-way hash of the password.
+	 *         @type int         $created   Unix timestamp of when the password was created.
+	 *         @type int|null    $last_used The Unix timestamp of the GMT date the application password was last used.
+	 *         @type string|null $last_ip   The IP address the application password was last used by.
+	 *     }
+	 * }
+	 * @return int|bool User meta ID if the key didn't exist (ie. this is the first time that an application password
+	 *                  has been saved for the user), true on successful update, false on failure or if the value passed
+	 *                  is the same as the one that is already in the database.
 	 */
 	protected static function set_user_application_passwords( $user_id, $passwords ) {
 		return update_user_meta( $user_id, static::USERMETA_KEY_APPLICATION_PASSWORDS, $passwords );
diff --git a/wp-includes/class-wp-block.php b/wp-includes/class-wp-block.php
index c6ca8a3bd4..f7fd53dfc9 100644
--- a/wp-includes/class-wp-block.php
+++ b/wp-includes/class-wp-block.php
@@ -114,7 +114,7 @@ class WP_Block {
 	 * @since 5.5.0
 	 *
 	 * @param array                  $block             {
-	 *     A representative array of a single parsed block object. See WP_Block_Parser_Block.
+	 *     An associative array of a single parsed block object. See WP_Block_Parser_Block.
 	 *
 	 *     @type string   $blockName    Name of block.
 	 *     @type array    $attrs        Attributes from block comment delimiters.
diff --git a/wp-includes/class-wp-http.php b/wp-includes/class-wp-http.php
index ea8adde0ba..fde0f4355d 100644
--- a/wp-includes/class-wp-http.php
+++ b/wp-includes/class-wp-http.php
@@ -145,8 +145,21 @@ class WP_Http {
 	 *     @type int          $limit_response_size Size in bytes to limit the response to. Default null.
 	 *
 	 * }
-	 * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'.
-	 *                        A WP_Error instance upon error.
+	 * @return array|WP_Error {
+	 *     Array of response data, or a WP_Error instance upon error.
+	 *
+	 *     @type \WpOrg\Requests\Utility\CaseInsensitiveDictionary $headers       Response headers keyed by name.
+	 *     @type string                                            $body          Response body.
+	 *     @type array                                             $response      {
+	 *         Array of HTTP response data.
+	 *
+	 *         @type int|false    $code    HTTP response status code.
+	 *         @type string|false $message HTTP response message.
+	 *     }
+	 *     @type WP_HTTP_Cookie[]                                  $cookies       Array of cookies set by the server.
+	 *     @type string|null                                       $filename      Optional. Filename of the response.
+	 *     @type WP_HTTP_Requests_Response|null                    $http_response Response object.
+	 * }
 	 */
 	public function request( $url, $args = array() ) {
 		$defaults = array(
diff --git a/wp-includes/class-wp-site-query.php b/wp-includes/class-wp-site-query.php
index 8c097fc17e..826bf76c78 100644
--- a/wp-includes/class-wp-site-query.php
+++ b/wp-includes/class-wp-site-query.php
@@ -263,8 +263,8 @@ class WP_Site_Query {
 	 * @since 4.6.0
 	 *
 	 * @param string|array $query Array or URL query string of parameters.
-	 * @return array|int List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids',
-	 *                   or the number of sites when 'count' is passed as a query var.
+	 * @return WP_Site[]|int[]|int List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids',
+	 *                             or the number of sites when 'count' is passed as a query var.
 	 */
 	public function query( $query ) {
 		$this->query_vars = wp_parse_args( $query );
@@ -279,8 +279,8 @@ class WP_Site_Query {
 	 *
 	 * @global wpdb $wpdb WordPress database abstraction object.
 	 *
-	 * @return array|int List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids',
-	 *                   or the number of sites when 'count' is passed as a query var.
+	 * @return WP_Site[]|int[]|int List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids',
+	 *                             or the number of sites when 'count' is passed as a query var.
 	 */
 	public function get_sites() {
 		global $wpdb;
@@ -333,10 +333,10 @@ class WP_Site_Query {
 		 * @since 5.6.0 The returned array of site data is assigned to the `sites` property
 		 *              of the current WP_Site_Query instance.
 		 *
-		 * @param array|int|null $site_data Return an array of site data to short-circuit WP's site query,
-		 *                                  the site count as an integer if `$this->query_vars['count']` is set,
-		 *                                  or null to run the normal queries.
-		 * @param WP_Site_Query  $query     The WP_Site_Query instance, passed by reference.
+		 * @param WP_Site[]|int[]|int|null $site_data Return an array of site data to short-circuit WP's site query,
+		 *                                            the site count as an integer if `$this->query_vars['count']` is set,
+		 *                                            or null to run the normal queries.
+		 * @param WP_Site_Query            $query     The WP_Site_Query instance, passed by reference.
 		 */
 		$site_data = apply_filters_ref_array( 'sites_pre_query', array( $site_data, &$this ) );
 
diff --git a/wp-includes/http.php b/wp-includes/http.php
index 240fd03795..fda090c4e8 100644
--- a/wp-includes/http.php
+++ b/wp-includes/http.php
@@ -45,6 +45,7 @@ function _wp_http_get_object() {
  * @param array  $args Optional. Request arguments. Default empty array.
  *                     See WP_Http::request() for information on accepted arguments.
  * @return array|WP_Error The response or WP_Error on failure.
+ *                        See WP_Http::request() for information on return value.
  */
 function wp_safe_remote_request( $url, $args = array() ) {
 	$args['reject_unsafe_urls'] = true;
@@ -71,6 +72,7 @@ function wp_safe_remote_request( $url, $args = array() ) {
  * @param array  $args Optional. Request arguments. Default empty array.
  *                     See WP_Http::request() for information on accepted arguments.
  * @return array|WP_Error The response or WP_Error on failure.
+ *                        See WP_Http::request() for information on return value.
  */
 function wp_safe_remote_get( $url, $args = array() ) {
 	$args['reject_unsafe_urls'] = true;
@@ -97,6 +99,7 @@ function wp_safe_remote_get( $url, $args = array() ) {
  * @param array  $args Optional. Request arguments. Default empty array.
  *                     See WP_Http::request() for information on accepted arguments.
  * @return array|WP_Error The response or WP_Error on failure.
+ *                        See WP_Http::request() for information on return value.
  */
 function wp_safe_remote_post( $url, $args = array() ) {
 	$args['reject_unsafe_urls'] = true;
@@ -123,6 +126,7 @@ function wp_safe_remote_post( $url, $args = array() ) {
  * @param array  $args Optional. Request arguments. Default empty array.
  *                     See WP_Http::request() for information on accepted arguments.
  * @return array|WP_Error The response or WP_Error on failure.
+ *                        See WP_Http::request() for information on return value.
  */
 function wp_safe_remote_head( $url, $args = array() ) {
 	$args['reject_unsafe_urls'] = true;
@@ -146,20 +150,8 @@ function wp_safe_remote_head( $url, $args = array() ) {
  * @param string $url  URL to retrieve.
  * @param array  $args Optional. Request arguments. Default empty array.
  *                     See WP_Http::request() for information on accepted arguments.
- * @return array|WP_Error {
- *     The response array or a WP_Error on failure.
- *
- *     @type string[]                       $headers       Array of response headers keyed by their name.
- *     @type string                         $body          Response body.
- *     @type array                          $response      {
- *         Data about the HTTP response.
- *
- *         @type int|false    $code    HTTP response code.
- *         @type string|false $message HTTP response message.
- *     }
- *     @type WP_HTTP_Cookie[]               $cookies       Array of response cookies.
- *     @type WP_HTTP_Requests_Response|null $http_response Raw HTTP response object.
- * }
+ * @return array|WP_Error The response array or a WP_Error on failure.
+ *                        See WP_Http::request() for information on return value.
  */
 function wp_remote_request( $url, $args = array() ) {
 	$http = _wp_http_get_object();
@@ -178,6 +170,7 @@ function wp_remote_request( $url, $args = array() ) {
  * @param array  $args Optional. Request arguments. Default empty array.
  *                     See WP_Http::request() for information on accepted arguments.
  * @return array|WP_Error The response or WP_Error on failure.
+ *                        See WP_Http::request() for information on return value.
  */
 function wp_remote_get( $url, $args = array() ) {
 	$http = _wp_http_get_object();
@@ -196,6 +189,7 @@ function wp_remote_get( $url, $args = array() ) {
  * @param array  $args Optional. Request arguments. Default empty array.
  *                     See WP_Http::request() for information on accepted arguments.
  * @return array|WP_Error The response or WP_Error on failure.
+ *                        See WP_Http::request() for information on return value.
  */
 function wp_remote_post( $url, $args = array() ) {
 	$http = _wp_http_get_object();
@@ -214,6 +208,7 @@ function wp_remote_post( $url, $args = array() ) {
  * @param array  $args Optional. Request arguments. Default empty array.
  *                     See WP_Http::request() for information on accepted arguments.
  * @return array|WP_Error The response or WP_Error on failure.
+ *                        See WP_Http::request() for information on return value.
  */
 function wp_remote_head( $url, $args = array() ) {
 	$http = _wp_http_get_object();
diff --git a/wp-includes/ms-site.php b/wp-includes/ms-site.php
index 71d61cd6da..b1d50940a2 100644
--- a/wp-includes/ms-site.php
+++ b/wp-includes/ms-site.php
@@ -439,8 +439,8 @@ function update_sitemeta_cache( $site_ids ) {
  *
  * @param string|array $args Optional. Array or string of arguments. See WP_Site_Query::__construct()
  *                           for information on accepted arguments. Default empty array.
- * @return array|int List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids',
- *                   or the number of sites when 'count' is passed as a query var.
+ * @return WP_Site[]|int[]|int List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids',
+ *                             or the number of sites when 'count' is passed as a query var.
  */
 function get_sites( $args = array() ) {
 	$query = new WP_Site_Query();
diff --git a/wp-includes/pluggable.php b/wp-includes/pluggable.php
index 8380a59724..690c0fe4bc 100644
--- a/wp-includes/pluggable.php
+++ b/wp-includes/pluggable.php
@@ -2564,10 +2564,10 @@ endif;
 
 if ( ! function_exists( 'wp_hash_password' ) ) :
 	/**
-	 * Creates a hash (encrypt) of a plain text password.
+	 * Creates a hash of a plain text password.
 	 *
 	 * For integration with other applications, this function can be overwritten to
-	 * instead use the other package password checking algorithm.
+	 * instead use the other package password hashing algorithm.
 	 *
 	 * @since 2.5.0
 	 *
@@ -2591,7 +2591,7 @@ endif;
 
 if ( ! function_exists( 'wp_check_password' ) ) :
 	/**
-	 * Checks the plaintext password against the encrypted Password.
+	 * Checks a plaintext password against a hashed password.
 	 *
 	 * Maintains compatibility between old version and the new cookie authentication
 	 * protocol using PHPass library. The $hash parameter is the encrypted password
@@ -2599,7 +2599,7 @@ if ( ! function_exists( 'wp_check_password' ) ) :
 	 * against the already encrypted password to see if they match.
 	 *
 	 * For integration with other applications, this function can be overwritten to
-	 * instead use the other package password checking algorithm.
+	 * instead use the other package password hashing algorithm.
 	 *
 	 * @since 2.5.0
 	 *
@@ -2792,7 +2792,7 @@ endif;
 
 if ( ! function_exists( 'wp_set_password' ) ) :
 	/**
-	 * Updates the user's password with a new encrypted one.
+	 * Updates the user's password with a new hashed one.
 	 *
 	 * For integration with other applications, this function can be overwritten to
 	 * instead use the other package password checking algorithm.
diff --git a/wp-includes/post.php b/wp-includes/post.php
index df4aa1c32f..725433939e 100644
--- a/wp-includes/post.php
+++ b/wp-includes/post.php
@@ -7794,7 +7794,10 @@ function wp_check_post_hierarchy_for_loops( $post_parent, $post_id ) {
  *
  * @param int|WP_Post $post         Post ID or post object where thumbnail should be attached.
  * @param int         $thumbnail_id Thumbnail to attach.
- * @return int|bool True on success, false on failure.
+ * @return int|bool Post meta ID if the key didn't exist (ie. this is the first time that
+ *                  a thumbnail has been saved for the post), true on successful update,
+ *                  false on failure or if the value passed is the same as the one that
+ *                  is already in the database.
  */
 function set_post_thumbnail( $post, $thumbnail_id ) {
 	$post         = get_post( $post );
diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php
index e3057e75d8..8be3aedd9a 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php
@@ -516,7 +516,7 @@ class WP_REST_Global_Styles_Controller extends WP_REST_Posts_Controller {
 	public function get_theme_item_permissions_check( $request ) {
 		/*
 		 * Verify if the current user has edit_theme_options capability.
-		 * This capability is required to edit/view/delete templates.
+		 * This capability is required to edit/view/delete global styles.
 		 */
 		if ( ! current_user_can( 'edit_theme_options' ) ) {
 			return new WP_Error(
@@ -596,7 +596,7 @@ class WP_REST_Global_Styles_Controller extends WP_REST_Posts_Controller {
 	public function get_theme_items_permissions_check( $request ) {
 		/*
 		 * Verify if the current user has edit_theme_options capability.
-		 * This capability is required to edit/view/delete templates.
+		 * This capability is required to edit/view/delete global styles.
 		 */
 		if ( ! current_user_can( 'edit_theme_options' ) ) {
 			return new WP_Error(
diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php
index 9fbaa95371..ee69643813 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php
@@ -102,7 +102,7 @@ class WP_REST_Menu_Items_Controller extends WP_REST_Posts_Controller {
 	}
 
 	/**
-	 * Creates a single post.
+	 * Creates a single nav menu item.
 	 *
 	 * @since 5.9.0
 	 *
@@ -267,7 +267,7 @@ class WP_REST_Menu_Items_Controller extends WP_REST_Posts_Controller {
 	}
 
 	/**
-	 * Deletes a single menu item.
+	 * Deletes a single nav menu item.
 	 *
 	 * @since 5.9.0
 	 *
@@ -317,7 +317,7 @@ class WP_REST_Menu_Items_Controller extends WP_REST_Posts_Controller {
 	}
 
 	/**
-	 * Prepares a single post for create or update.
+	 * Prepares a single nav menu item for create or update.
 	 *
 	 * @since 5.9.0
 	 *
@@ -482,7 +482,7 @@ class WP_REST_Menu_Items_Controller extends WP_REST_Posts_Controller {
 	}
 
 	/**
-	 * Prepares a single post output for response.
+	 * Prepares a single nav menu item output for response.
 	 *
 	 * @since 5.9.0
 	 *
@@ -678,7 +678,7 @@ class WP_REST_Menu_Items_Controller extends WP_REST_Posts_Controller {
 	}
 
 	/**
-	 * Retrieves Link Description Objects that should be added to the Schema for the posts collection.
+	 * Retrieves Link Description Objects that should be added to the Schema for the nav menu items collection.
 	 *
 	 * @since 5.9.0
 	 *
@@ -705,7 +705,7 @@ class WP_REST_Menu_Items_Controller extends WP_REST_Posts_Controller {
 	}
 
 	/**
-	 * Retrieves the term's schema, conforming to JSON Schema.
+	 * Retrieves the nav menu item's schema, conforming to JSON Schema.
 	 *
 	 * @since 5.9.0
 	 *
@@ -926,7 +926,7 @@ class WP_REST_Menu_Items_Controller extends WP_REST_Posts_Controller {
 	}
 
 	/**
-	 * Retrieves the query params for the posts collection.
+	 * Retrieves the query params for the nav menu items collection.
 	 *
 	 * @since 5.9.0
 	 *
diff --git a/wp-includes/version.php b/wp-includes/version.php
index b4ef637d6d..3564ae8c90 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.7-alpha-59008';
+$wp_version = '6.7-alpha-59009';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.