diff --git a/wp-includes/rest-api.php b/wp-includes/rest-api.php
index 187c653e13..22697fab4d 100644
--- a/wp-includes/rest-api.php
+++ b/wp-includes/rest-api.php
@@ -317,6 +317,10 @@ function create_initial_rest_routes() {
 	$controller = new WP_REST_Block_Types_Controller();
 	$controller->register_routes();
 
+	// Global Styles revisions.
+	$controller = new WP_REST_Global_Styles_Revisions_Controller();
+	$controller->register_routes();
+
 	// Global Styles.
 	$controller = new WP_REST_Global_Styles_Controller();
 	$controller->register_routes();
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 1ea2fc4faa..f64afba1ba 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
@@ -420,6 +420,7 @@ class WP_REST_Global_Styles_Controller extends WP_REST_Controller {
 	 * Prepares links for the request.
 	 *
 	 * @since 5.9.0
+	 * @since 6.3.0 Adds revisions count and rest URL href to version-history.
 	 *
 	 * @param integer $id ID.
 	 * @return array Links for the given post.
@@ -433,6 +434,16 @@ class WP_REST_Global_Styles_Controller extends WP_REST_Controller {
 			),
 		);
 
+		if ( post_type_supports( $this->post_type, 'revisions' ) ) {
+			$revisions       = wp_get_latest_revision_id_and_total_count( $id );
+			$revisions_count = ! is_wp_error( $revisions ) ? $revisions['count'] : 0;
+			$revisions_base  = sprintf( '/%s/%d/revisions', $base, $id );
+			$links['version-history'] = array(
+				'href'  => rest_url( $revisions_base ),
+				'count' => $revisions_count,
+			);
+		}
+
 		return $links;
 	}
 
diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-revisions-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-revisions-controller.php
new file mode 100644
index 0000000000..20457ee9ac
--- /dev/null
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-revisions-controller.php
@@ -0,0 +1,474 @@
+<?php
+/**
+ * REST API: WP_REST_Global_Styles_Revisions_Controller class
+ *
+ * @package WordPress
+ * @subpackage REST_API
+ * @since 6.3.0
+ */
+
+/**
+ * Core class used to access global styles revisions via the REST API.
+ *
+ * @since 6.3.0
+ *
+ * @see WP_REST_Controller
+ */
+class WP_REST_Global_Styles_Revisions_Controller extends WP_REST_Controller {
+	/**
+	 * Parent post type.
+	 *
+	 * @since 6.3.0
+	 * @var string
+	 */
+	private $parent_post_type;
+
+	/**
+	 * The base of the parent controller's route.
+	 *
+	 * @since 6.3.0
+	 * @var string
+	 */
+	private $parent_base;
+
+	/**
+	 * Constructor.
+	 *
+	 * @since 6.3.0
+	 */
+	public function __construct() {
+		$this->parent_post_type = 'wp_global_styles';
+		$this->rest_base        = 'revisions';
+		$this->parent_base      = 'global-styles';
+		$this->namespace        = 'wp/v2';
+	}
+
+	/**
+	 * Registers the controller's routes.
+	 *
+	 * @since 6.3.0
+	 */
+	public function register_routes() {
+		register_rest_route(
+			$this->namespace,
+			'/' . $this->parent_base . '/(?P<parent>[\d]+)/' . $this->rest_base,
+			array(
+				'args'   => array(
+					'parent' => array(
+						'description' => __( 'The ID for the parent of the revision.' ),
+						'type'        => 'integer',
+					),
+				),
+				array(
+					'methods'             => WP_REST_Server::READABLE,
+					'callback'            => array( $this, 'get_items' ),
+					'permission_callback' => array( $this, 'get_item_permissions_check' ),
+					'args'                => $this->get_collection_params(),
+				),
+				'schema' => array( $this, 'get_public_item_schema' ),
+			)
+		);
+	}
+
+	/**
+	 * Retrieves the query params for collections.
+	 *
+	 * Inherits from WP_REST_Controller::get_collection_params(),
+	 * also reflects changes to return value WP_REST_Revisions_Controller::get_collection_params().
+	 *
+	 * @since 6.3.0
+	 *
+	 * @return array Collection parameters.
+	 */
+	public function get_collection_params() {
+		$collection_params                       = parent::get_collection_params();
+		$collection_params['context']['default'] = 'view';
+		$collection_params['offset']             = array(
+			'description' => __( 'Offset the result set by a specific number of items.' ),
+			'type'        => 'integer',
+		);
+		unset( $collection_params['search'] );
+		unset( $collection_params['per_page']['default'] );
+
+		return $collection_params;
+	}
+
+	/**
+	 * Returns decoded JSON from post content string,
+	 * or a 404 if not found.
+	 *
+	 * @since 6.3.0
+	 *
+	 * @param string $raw_json Encoded JSON from global styles custom post content.
+	 * @return Array|WP_Error
+	 */
+	private function get_decoded_global_styles_json( $raw_json ) {
+		$decoded_json = json_decode( $raw_json, true );
+
+		if ( is_array( $decoded_json ) && isset( $decoded_json['isGlobalStylesUserThemeJSON'] ) && true === $decoded_json['isGlobalStylesUserThemeJSON'] ) {
+			return $decoded_json;
+		}
+
+		return new WP_Error(
+			'rest_global_styles_not_found',
+			__( 'Cannot find user global styles revisions.' ),
+			array( 'status' => 404 )
+		);
+	}
+
+	/**
+	 * Returns paginated revisions of the given global styles config custom post type.
+	 *
+	 * The bulk of the body is taken from WP_REST_Revisions_Controller->get_items,
+		 * but global styles does not require as many parameters.
+		 *
+	 * @since 6.3.0
+	 *
+	 * @param WP_REST_Request $request The request instance.
+	 * @return WP_REST_Response|WP_Error
+	 */
+	public function get_items( $request ) {
+		$parent = $this->get_parent( $request['parent'] );
+
+		if ( is_wp_error( $parent ) ) {
+			return $parent;
+		}
+
+		$global_styles_config = $this->get_decoded_global_styles_json( $parent->post_content );
+
+		if ( is_wp_error( $global_styles_config ) ) {
+			return $global_styles_config;
+		}
+
+		if ( wp_revisions_enabled( $parent ) ) {
+			$registered = $this->get_collection_params();
+			$query_args = array(
+				'post_parent'    => $parent->ID,
+				'post_type'      => 'revision',
+				'post_status'    => 'inherit',
+				'posts_per_page' => -1,
+				'orderby'        => 'date ID',
+				'order'          => 'DESC',
+			);
+
+			$parameter_mappings = array(
+				'offset'   => 'offset',
+				'page'     => 'paged',
+				'per_page' => 'posts_per_page',
+			);
+
+			foreach ( $parameter_mappings as $api_param => $wp_param ) {
+				if ( isset( $registered[ $api_param ], $request[ $api_param ] ) ) {
+					$query_args[ $wp_param ] = $request[ $api_param ];
+				}
+			}
+
+			$revisions_query = new WP_Query();
+			$revisions       = $revisions_query->query( $query_args );
+			$offset          = isset( $query_args['offset'] ) ? (int) $query_args['offset'] : 0;
+			$page            = (int) $query_args['paged'];
+			$total_revisions = $revisions_query->found_posts;
+
+			if ( $total_revisions < 1 ) {
+				// Out-of-bounds, run the query again without LIMIT for total count.
+				unset( $query_args['paged'], $query_args['offset'] );
+				$count_query = new WP_Query();
+				$count_query->query( $query_args );
+
+				$total_revisions = $count_query->found_posts;
+			}
+
+			if ( $revisions_query->query_vars['posts_per_page'] > 0 ) {
+				$max_pages = ceil( $total_revisions / (int) $revisions_query->query_vars['posts_per_page'] );
+			} else {
+				$max_pages = $total_revisions > 0 ? 1 : 0;
+			}
+			if ( $total_revisions > 0 ) {
+				if ( $offset >= $total_revisions ) {
+					return new WP_Error(
+						'rest_revision_invalid_offset_number',
+						__( 'The offset number requested is larger than or equal to the number of available revisions.' ),
+						array( 'status' => 400 )
+					);
+				} elseif ( ! $offset && $page > $max_pages ) {
+					return new WP_Error(
+						'rest_revision_invalid_page_number',
+						__( 'The page number requested is larger than the number of pages available.' ),
+						array( 'status' => 400 )
+					);
+				}
+			}
+		} else {
+			$revisions       = array();
+			$total_revisions = 0;
+			$max_pages       = 0;
+			$page            = (int) $request['page'];
+		}
+
+		$response = array();
+
+		foreach ( $revisions as $revision ) {
+			$data       = $this->prepare_item_for_response( $revision, $request );
+			$response[] = $this->prepare_response_for_collection( $data );
+		}
+
+		$response = rest_ensure_response( $response );
+
+		$response->header( 'X-WP-Total', (int) $total_revisions );
+		$response->header( 'X-WP-TotalPages', (int) $max_pages );
+
+		$request_params = $request->get_query_params();
+		$base_path      = rest_url( sprintf( '%s/%s/%d/%s', $this->namespace, $this->parent_base, $request['parent'], $this->rest_base ) );
+		$base           = add_query_arg( urlencode_deep( $request_params ), $base_path );
+
+		if ( $page > 1 ) {
+			$prev_page = $page - 1;
+
+			if ( $prev_page > $max_pages ) {
+				$prev_page = $max_pages;
+			}
+
+			$prev_link = add_query_arg( 'page', $prev_page, $base );
+			$response->link_header( 'prev', $prev_link );
+		}
+		if ( $max_pages > $page ) {
+			$next_page = $page + 1;
+			$next_link = add_query_arg( 'page', $next_page, $base );
+
+			$response->link_header( 'next', $next_link );
+		}
+
+		return $response;
+	}
+
+	/**
+	 * Checks the post_date_gmt or modified_gmt and prepare any post or
+	 * modified date for single post output.
+	 *
+	 * Duplicate of WP_REST_Revisions_Controller::prepare_date_response
+	 *
+	 * @since 6.3.0
+	 *
+	 * @param string      $date_gmt GMT publication time.
+	 * @param string|null $date     Optional. Local publication time. Default null.
+	 * @return string|null ISO8601/RFC3339 formatted datetime, otherwise null.
+	 */
+	protected function prepare_date_response( $date_gmt, $date = null ) {
+		if ( '0000-00-00 00:00:00' === $date_gmt ) {
+			return null;
+		}
+
+		if ( isset( $date ) ) {
+			return mysql_to_rfc3339( $date );
+		}
+
+		return mysql_to_rfc3339( $date_gmt );
+	}
+
+	/**
+	 * Prepares the revision for the REST response.
+	 *
+	 * @since 6.3.0
+	 *
+	 * @param WP_Post         $post    Post revision object.
+	 * @param WP_REST_Request $request Request object.
+	 * @return WP_REST_Response|WP_Error Response object.
+	 */
+	public function prepare_item_for_response( $post, $request ) {
+		$parent               = $this->get_parent( $request['parent'] );
+		$global_styles_config = $this->get_decoded_global_styles_json( $post->post_content );
+
+		if ( is_wp_error( $global_styles_config ) ) {
+			return $global_styles_config;
+		}
+
+		$fields = $this->get_fields_for_response( $request );
+		$data   = array();
+
+		if ( ! empty( $global_styles_config['styles'] ) || ! empty( $global_styles_config['settings'] ) ) {
+			$global_styles_config = ( new WP_Theme_JSON( $global_styles_config, 'custom' ) )->get_raw_data();
+			if ( rest_is_field_included( 'settings', $fields ) ) {
+				$data['settings'] = ! empty( $global_styles_config['settings'] ) ? $global_styles_config['settings'] : new stdClass();
+			}
+			if ( rest_is_field_included( 'styles', $fields ) ) {
+				$data['styles'] = ! empty( $global_styles_config['styles'] ) ? $global_styles_config['styles'] : new stdClass();
+			}
+		}
+
+		if ( rest_is_field_included( 'author', $fields ) ) {
+			$data['author'] = (int) $post->post_author;
+		}
+
+		if ( rest_is_field_included( 'date', $fields ) ) {
+			$data['date'] = $this->prepare_date_response( $post->post_date_gmt, $post->post_date );
+		}
+
+		if ( rest_is_field_included( 'date_gmt', $fields ) ) {
+			$data['date_gmt'] = $this->prepare_date_response( $post->post_date_gmt );
+		}
+
+		if ( rest_is_field_included( 'id', $fields ) ) {
+			$data['id'] = (int) $post->ID;
+		}
+
+		if ( rest_is_field_included( 'modified', $fields ) ) {
+			$data['modified'] = $this->prepare_date_response( $post->post_modified_gmt, $post->post_modified );
+		}
+
+		if ( rest_is_field_included( 'modified_gmt', $fields ) ) {
+			$data['modified_gmt'] = $this->prepare_date_response( $post->post_modified_gmt );
+		}
+
+		if ( rest_is_field_included( 'parent', $fields ) ) {
+			$data['parent'] = (int) $parent->ID;
+		}
+
+		$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
+		$data    = $this->add_additional_fields_to_object( $data, $request );
+		$data    = $this->filter_response_by_context( $data, $context );
+
+		return rest_ensure_response( $data );
+	}
+
+	/**
+	 * Retrieves the revision's schema, conforming to JSON Schema.
+	 *
+	 * @since 6.3.0
+	 *
+	 * @return array Item schema data.
+	 */
+	public function get_item_schema() {
+		if ( $this->schema ) {
+			return $this->add_additional_fields_schema( $this->schema );
+		}
+
+		$schema = array(
+			'$schema'    => 'http://json-schema.org/draft-04/schema#',
+			'title'      => "{$this->parent_post_type}-revision",
+			'type'       => 'object',
+			// Base properties for every revision.
+			'properties' => array(
+
+				/*
+				 * Adds settings and styles from the WP_REST_Revisions_Controller item fields.
+				 * Leaves out GUID as global styles shouldn't be accessible via URL.
+				 */
+				'author'       => array(
+					'description' => __( 'The ID for the author of the revision.' ),
+					'type'        => 'integer',
+					'context'     => array( 'view', 'edit', 'embed' ),
+				),
+				'date'         => array(
+					'description' => __( "The date the revision was published, in the site's timezone." ),
+					'type'        => 'string',
+					'format'      => 'date-time',
+					'context'     => array( 'view', 'edit', 'embed' ),
+				),
+				'date_gmt'     => array(
+					'description' => __( 'The date the revision was published, as GMT.' ),
+					'type'        => 'string',
+					'format'      => 'date-time',
+					'context'     => array( 'view', 'edit' ),
+				),
+				'id'           => array(
+					'description' => __( 'Unique identifier for the revision.' ),
+					'type'        => 'integer',
+					'context'     => array( 'view', 'edit', 'embed' ),
+				),
+				'modified'     => array(
+					'description' => __( "The date the revision was last modified, in the site's timezone." ),
+					'type'        => 'string',
+					'format'      => 'date-time',
+					'context'     => array( 'view', 'edit' ),
+				),
+				'modified_gmt' => array(
+					'description' => __( 'The date the revision was last modified, as GMT.' ),
+					'type'        => 'string',
+					'format'      => 'date-time',
+					'context'     => array( 'view', 'edit' ),
+				),
+				'parent'       => array(
+					'description' => __( 'The ID for the parent of the revision.' ),
+					'type'        => 'integer',
+					'context'     => array( 'view', 'edit', 'embed' ),
+				),
+
+				// Adds settings and styles from the WP_REST_Global_Styles_Controller parent schema.
+				'styles'       => array(
+					'description' => __( 'Global styles.' ),
+					'type'        => array( 'object' ),
+					'context'     => array( 'view', 'edit' ),
+				),
+				'settings'     => array(
+					'description' => __( 'Global settings.' ),
+					'type'        => array( 'object' ),
+					'context'     => array( 'view', 'edit' ),
+				),
+			),
+		);
+
+		$this->schema = $schema;
+
+		return $this->add_additional_fields_schema( $this->schema );
+	}
+
+	/**
+	 * Checks if a given request has access to read a single global style.
+	 *
+	 * @since 6.3.0
+	 *
+	 * @param WP_REST_Request $request Full details about the request.
+	 * @return true|WP_Error True if the request has read access, WP_Error object otherwise.
+	 */
+	public function get_item_permissions_check( $request ) {
+		$post = $this->get_parent( $request['parent'] );
+		if ( is_wp_error( $post ) ) {
+			return $post;
+		}
+
+		/*
+		 * The same check as WP_REST_Global_Styles_Controller::get_item_permissions_check.
+		 */
+		if ( ! current_user_can( 'read_post', $post->ID ) ) {
+			return new WP_Error(
+				'rest_cannot_view',
+				__( 'Sorry, you are not allowed to view revisions for this global style.' ),
+				array( 'status' => rest_authorization_required_code() )
+			);
+		}
+
+		return true;
+	}
+
+	/**
+	 * Get the parent post, if the ID is valid.
+	 *
+	 * Duplicate of WP_REST_Revisions_Controller::get_parent
+	 *
+	 * @since 6.3.0
+	 *
+	 * @param int $parent_post_id Supplied ID.
+	 * @return WP_Post|WP_Error Post object if ID is valid, WP_Error otherwise.
+	 */
+	protected function get_parent( $parent_post_id ) {
+		$error = new WP_Error(
+			'rest_post_invalid_parent',
+			__( 'Invalid post parent ID.' ),
+			array( 'status' => 404 )
+		);
+
+		if ( (int) $parent_post_id <= 0 ) {
+			return $error;
+		}
+
+		$parent_post = get_post( (int) $parent_post_id );
+
+		if ( empty( $parent_post ) || empty( $parent_post->ID )
+			|| $this->parent_post_type !== $parent_post->post_type
+		) {
+			return $error;
+		}
+
+		return $parent_post;
+	}
+}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index ac769a8a7f..8bc43ddb78 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.3-alpha-56081';
+$wp_version = '6.3-alpha-56082';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
diff --git a/wp-settings.php b/wp-settings.php
index 26d2662f6b..ac3365ab3f 100644
--- a/wp-settings.php
+++ b/wp-settings.php
@@ -261,6 +261,7 @@ require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-posts-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-attachments-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-global-styles-controller.php';
+require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-global-styles-revisions-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-post-types-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-post-statuses-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-revisions-controller.php';