Index: wp-includes/class-wp-xmlrpc-server.php
===================================================================
--- wp-includes/class-wp-xmlrpc-server.php	(revision 21468)
+++ wp-includes/class-wp-xmlrpc-server.php	(working copy)
@@ -78,6 +78,10 @@
 			'wp.getPostFormats'     => 'this:wp_getPostFormats',
 			'wp.getPostType'		=> 'this:wp_getPostType',
 			'wp.getPostTypes'		=> 'this:wp_getPostTypes',
+			'wp.getRevision'		=> 'this:wp_getRevision',
+			'wp.getRevisions'		=> 'this:wp_getRevisions',
+			'wp.newRevision'		=> 'this:wp_newRevision',
+			'wp.restoreRevision'	=> 'this:wp_restoreRevision',
 
 			// Blogger API
 			'blogger.getUsersBlogs' => 'this:blogger_getUsersBlogs',
@@ -3164,6 +3168,189 @@
 		return $struct;
 	}
 
+	/**
+	 * Retrieves a post revision
+	 *
+	 * @since 3.5.0
+	 *
+	 * @uses wp_get_post_revision()
+	 * @param array $args Method parameters. Contains:
+	 *  - int     $blog_id
+	 *  - string  $username
+	 *  - string  $password
+	 *  - int     $post_id
+	 *  - array   $fields
+	 * @return array
+	 */
+	function wp_getRevision( $args ) {
+		if ( ! $this->minimum_args( $args, 4 ) )
+			return $this->error;
+
+		$this->escape( $args );
+
+		$blog_id            = (int) $args[0];
+		$username           = $args[1];
+		$password           = $args[2];
+		$post_id            = (int) $args[3];
+
+		if ( isset( $args[4] ) )
+			$fields = $args[4];
+		else
+			$fields = apply_filters( 'xmlrpc_default_revision_fields', array( 'post' ), 'wp.getRevision' );
+
+		if ( ! $user = $this->login( $username, $password ) )
+			return $this->error;
+
+		do_action( 'xmlrpc_call', 'wp.getRevision' );
+
+		$post = wp_get_post_revision( $post_id, ARRAY_A );
+
+		if ( empty( $post['ID'] ) )
+			return new IXR_Error( 404, __( 'Invalid post ID.' ) );
+
+		return $this->_prepare_post( $post, $fields );
+	}
+
+	/**
+	 * Retrieve revisions.
+	 *
+	 * @since 3.5.0
+	 *
+	 * The optional $filter parameter modifies the query used to retrieve posts.
+	 * Accepted keys are 'post_type', 'post_status', 'number', 'offset',
+	 * 'orderby', and 'order'.
+	 *
+	 * The optional $fields parameter specifies what fields will be included
+	 * in the response array.
+	 *
+	 * @uses wp_get_recent_posts()
+	 * @see wp_getPost() for more on $fields
+	 * @see get_posts() for more on $filter values
+	 *
+	 * @param array $args Method parameters. Contains:
+	 *  - int     $blog_id
+	 *  - string  $username
+	 *  - string  $password
+	 *  - int     $post_id
+	 *  - array   $fields
+	 * @return array contains a collection of posts.
+	 */
+	function wp_getRevisions( $args ) {
+		if ( ! $this->minimum_args( $args, 4 ) )
+			return $this->error;
+		$this->escape( $args );
+
+		$blog_id    = (int) $args[0];
+		$username   = $args[1];
+		$password   = $args[2];
+		$post_id    = (int) $args[3];
+
+		if ( isset( $args[4] ) )
+			$fields = $args[4];
+		else
+			$fields = apply_filters( 'xmlrpc_default_revision_fields', array( 'post' ), 'wp.getRevisions' );
+
+		if ( ! $user = $this->login( $username, $password ) )
+			return $this->error;
+
+		do_action( 'xmlrpc_call', 'wp.getRevisions' );
+
+		$query = array();
+
+		$posts_list = wp_get_post_revisions( $post_id );
+
+		if ( ! $posts_list )
+			return array();
+
+		// holds all the posts data
+		$struct = array();
+
+		foreach ( $posts_list as $post ) {
+			$struct[] = $this->_prepare_post( $post, $fields );
+		}
+
+		return $struct;
+	}
+
+	/**
+	 * Retrieve revisions.
+	 *
+	 * @since 3.5.0
+	 *
+	 * The optional $filter parameter modifies the query used to retrieve posts.
+	 * Accepted keys are 'post_type', 'post_status', 'number', 'offset',
+	 * 'orderby', and 'order'.
+	 *
+	 * The optional $fields parameter specifies what fields will be included
+	 * in the response array.
+	 *
+	 * @uses wp_get_recent_posts()
+	 * @see wp_getPost() for more on $fields
+	 * @see get_posts() for more on $filter values
+	 *
+	 * @param array $args Method parameters. Contains:
+	 *  - int     $blog_id
+	 *  - string  $username
+	 *  - string  $password
+	 *  - int     $post_id
+	 *  - array   $fields
+	 * @return array contains a collection of posts.
+	 */
+	function wp_newRevision( $args ) {
+		add_action( 'pre_post_update', 'wp_save_post_revision' );
+		return $this->wp_editPost( $args );
+	}
+
+	/**
+	 * Retrieve revisions.
+	 *
+	 * @since 3.5.0
+	 *
+	 * The optional $filter parameter modifies the query used to retrieve posts.
+	 * Accepted keys are 'post_type', 'post_status', 'number', 'offset',
+	 * 'orderby', and 'order'.
+	 *
+	 * The optional $fields parameter specifies what fields will be included
+	 * in the response array.
+	 *
+	 * @uses wp_get_recent_posts()
+	 * @see wp_getPost() for more on $fields
+	 * @see get_posts() for more on $filter values
+	 *
+	 * @param array $args Method parameters. Contains:
+	 *  - int     $blog_id
+	 *  - string  $username
+	 *  - string  $password
+	 *  - int     $post_id
+	 *  - array   $fields
+	 * @return array contains a collection of posts.
+	 */
+	function wp_restoreRevision( $args ) {
+		if ( ! $this->minimum_args( $args, 3 ) )
+			return $this->error;
+
+		$this->escape( $args );
+
+		$blog_id    = (int) $args[0];
+		$username   = $args[1];
+		$password   = $args[2];
+		$post_id    = (int) $args[3];
+
+		if ( isset( $args[4] ) )
+			$fields = $args[4];
+		else
+			$fields = apply_filters( 'xmlrpc_default_revision_fields', array( 'post' ), 'wp.restoreRevisions' );
+
+		if ( ! $user = $this->login( $username, $password ) )
+			return $this->error;
+
+		do_action( 'xmlrpc_call', 'wp.restoreRevision' );
+
+		$post = wp_get_post_revision( $post_id, ARRAY_A );
+
+		return true;
+	}
+
 	/* Blogger API functions.
 	 * specs on http://plant.blogger.com/api and http://groups.yahoo.com/group/bloggerDev/
 	 */