diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-attachments-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-attachments-controller.php
index 42187df05b..9d8e7d438f 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-attachments-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-attachments-controller.php
@@ -594,7 +594,6 @@ class WP_REST_Attachments_Controller extends WP_REST_Posts_Controller {
 			'description'       => __( 'Limit result set to attachments of a particular media type.' ),
 			'type'              => 'string',
 			'enum'              => array_keys( $media_types ),
-			'validate_callback' => 'rest_validate_request_arg',
 		);
 
 		$params['mime_type'] = array(
diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php
index bfd652db4b..b0a8bd790d 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php
@@ -1114,9 +1114,7 @@ class WP_REST_Comments_Controller extends WP_REST_Controller {
 					'type'         => 'string',
 					'format'       => 'ipv4',
 					'context'      => array( 'edit' ),
-					'arg_options'  => array(
-						'default'           => '127.0.0.1',
-					),
+					'default'      => '127.0.0.1',
 				),
 				'author_name'     => array(
 					'description'  => __( 'Display name for the object author.' ),
@@ -1188,17 +1186,13 @@ class WP_REST_Comments_Controller extends WP_REST_Controller {
 					'description'  => __( 'The id for the parent of the object.' ),
 					'type'         => 'integer',
 					'context'      => array( 'view', 'edit', 'embed' ),
-					'arg_options'  => array(
-						'default'           => 0,
-					),
+					'default'      => 0,
 				),
 				'post'             => array(
 					'description'  => __( 'The id of the associated post object.' ),
 					'type'         => 'integer',
 					'context'      => array( 'view', 'edit' ),
-					'arg_options'  => array(
-						'default'           => 0,
-					),
+					'default'      => 0,
 				),
 				'status'           => array(
 					'description'  => __( 'State of the object.' ),
@@ -1264,26 +1258,28 @@ class WP_REST_Comments_Controller extends WP_REST_Controller {
 			'description'       => __( 'Limit response to resources published after a given ISO8601 compliant date.' ),
 			'type'              => 'string',
 			'format'            => 'date-time',
-			'validate_callback' => 'rest_validate_request_arg',
 		);
 
 		$query_params['author'] = array(
 			'description'       => __( 'Limit result set to comments assigned to specific user ids. Requires authorization.' ),
-			'sanitize_callback' => 'wp_parse_id_list',
 			'type'              => 'array',
+			'items'             => array(
+				'type'          => 'integer',
+			),
 		);
 
 		$query_params['author_exclude'] = array(
 			'description'       => __( 'Ensure result set excludes comments assigned to specific user ids. Requires authorization.' ),
-			'sanitize_callback' => 'wp_parse_id_list',
 			'type'              => 'array',
+			'items'             => array(
+				'type'          => 'integer',
+			),
 		);
 
 		$query_params['author_email'] = array(
 			'default'           => null,
 			'description'       => __( 'Limit result set to that from a specific author email. Requires authorization.' ),
 			'format'            => 'email',
-			'sanitize_callback' => 'sanitize_email',
 			'type'              => 'string',
 		);
 
@@ -1291,43 +1287,40 @@ class WP_REST_Comments_Controller extends WP_REST_Controller {
 			'description'       => __( 'Limit response to resources published before a given ISO8601 compliant date.' ),
 			'type'              => 'string',
 			'format'            => 'date-time',
-			'validate_callback' => 'rest_validate_request_arg',
 		);
 
 		$query_params['exclude'] = array(
 			'description'        => __( 'Ensure result set excludes specific ids.' ),
 			'type'               => 'array',
+			'items'              => array(
+				'type'           => 'integer',
+			),
 			'default'            => array(),
-			'sanitize_callback'  => 'wp_parse_id_list',
 		);
 
 		$query_params['include'] = array(
 			'description'        => __( 'Limit result set to specific ids.' ),
 			'type'               => 'array',
+			'items'              => array(
+				'type'           => 'integer',
+			),
 			'default'            => array(),
-			'sanitize_callback'  => 'wp_parse_id_list',
 		);
 
 		$query_params['karma'] = array(
 			'default'           => null,
 			'description'       => __( 'Limit result set to that of a particular comment karma. Requires authorization.' ),
-			'sanitize_callback' => 'absint',
 			'type'              => 'integer',
-			'validate_callback'  => 'rest_validate_request_arg',
 		);
 
 		$query_params['offset'] = array(
 			'description'        => __( 'Offset the result set by a specific number of comments.' ),
 			'type'               => 'integer',
-			'sanitize_callback'  => 'absint',
-			'validate_callback'  => 'rest_validate_request_arg',
 		);
 
 		$query_params['order']      = array(
 			'description'           => __( 'Order sort attribute ascending or descending.' ),
 			'type'                  => 'string',
-			'sanitize_callback'     => 'sanitize_key',
-			'validate_callback'     => 'rest_validate_request_arg',
 			'default'               => 'desc',
 			'enum'                  => array(
 				'asc',
@@ -1338,8 +1331,6 @@ class WP_REST_Comments_Controller extends WP_REST_Controller {
 		$query_params['orderby']    = array(
 			'description'           => __( 'Sort collection by object attribute.' ),
 			'type'                  => 'string',
-			'sanitize_callback'     => 'sanitize_key',
-			'validate_callback'     => 'rest_validate_request_arg',
 			'default'               => 'date_gmt',
 			'enum'                  => array(
 				'date',
@@ -1355,22 +1346,28 @@ class WP_REST_Comments_Controller extends WP_REST_Controller {
 		$query_params['parent'] = array(
 			'default'           => array(),
 			'description'       => __( 'Limit result set to resources of specific parent ids.' ),
-			'sanitize_callback' => 'wp_parse_id_list',
 			'type'              => 'array',
+			'items'             => array(
+				'type'          => 'integer',
+			),
 		);
 
 		$query_params['parent_exclude'] = array(
 			'default'           => array(),
 			'description'       => __( 'Ensure result set excludes specific parent ids.' ),
-			'sanitize_callback' => 'wp_parse_id_list',
 			'type'              => 'array',
+			'items'             => array(
+				'type'          => 'integer',
+			),
 		);
 
 		$query_params['post']   = array(
 			'default'           => array(),
 			'description'       => __( 'Limit result set to resources assigned to specific post ids.' ),
 			'type'              => 'array',
-			'sanitize_callback' => 'wp_parse_id_list',
+			'items'             => array(
+				'type'          => 'integer',
+			),
 		);
 
 		$query_params['status'] = array(
diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php
index 2eed29b69f..0afc6061b6 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php
@@ -1975,20 +1975,6 @@ class WP_REST_Posts_Controller extends WP_REST_Controller {
 				'items'       => array(
 					'type'    => 'integer',
 				),
-				'arg_options' => array(
-					'sanitize_callback' => 'wp_parse_id_list',
-				),
-				'context'     => array( 'view', 'edit' ),
-			);
-			$schema['properties'][ $base . '_exclude' ] = array(
-				'description' => sprintf( __( 'The terms in the %s taxonomy that should not be assigned to the object.' ), $taxonomy->name ),
-				'type'        => 'array',
-				'items'       => array(
-					'type'    => 'integer',
-				),
-				'arg_options' => array(
-					'sanitize_callback' => 'wp_parse_id_list',
-				),
 				'context'     => array( 'view', 'edit' ),
 			);
 		}
@@ -2013,21 +1999,24 @@ class WP_REST_Posts_Controller extends WP_REST_Controller {
 			'description'        => __( 'Limit response to resources published after a given ISO8601 compliant date.' ),
 			'type'               => 'string',
 			'format'             => 'date-time',
-			'validate_callback'  => 'rest_validate_request_arg',
 		);
 
 		if ( post_type_supports( $this->post_type, 'author' ) ) {
 			$params['author'] = array(
 				'description'         => __( 'Limit result set to posts assigned to specific authors.' ),
 				'type'                => 'array',
+				'items'               => array(
+					'type'            => 'integer',
+				),
 				'default'             => array(),
-				'sanitize_callback'   => 'wp_parse_id_list',
 			);
 			$params['author_exclude'] = array(
 				'description'         => __( 'Ensure result set excludes posts assigned to specific authors.' ),
 				'type'                => 'array',
+				'items'               => array(
+					'type'            => 'integer',
+				),
 				'default'             => array(),
-				'sanitize_callback'   => 'wp_parse_id_list',
 			);
 		}
 
@@ -2035,37 +2024,36 @@ class WP_REST_Posts_Controller extends WP_REST_Controller {
 			'description'        => __( 'Limit response to resources published before a given ISO8601 compliant date.' ),
 			'type'               => 'string',
 			'format'             => 'date-time',
-			'validate_callback'  => 'rest_validate_request_arg',
 		);
 
 		$params['exclude'] = array(
 			'description'        => __( 'Ensure result set excludes specific ids.' ),
 			'type'               => 'array',
+			'items'              => array(
+				'type'           => 'integer',
+			),
 			'default'            => array(),
-			'sanitize_callback'  => 'wp_parse_id_list',
 		);
 
 		$params['include'] = array(
 			'description'        => __( 'Limit result set to specific ids.' ),
 			'type'               => 'array',
+			'items'              => array(
+				'type'           => 'integer',
+			),
 			'default'            => array(),
-			'sanitize_callback'  => 'wp_parse_id_list',
 		);
 
 		if ( 'page' === $this->post_type || post_type_supports( $this->post_type, 'page-attributes' ) ) {
 			$params['menu_order'] = array(
 				'description'        => __( 'Limit result set to resources with a specific menu_order value.' ),
 				'type'               => 'integer',
-				'sanitize_callback'  => 'absint',
-				'validate_callback'  => 'rest_validate_request_arg',
 			);
 		}
 
 		$params['offset'] = array(
 			'description'        => __( 'Offset the result set by a specific number of items.' ),
 			'type'               => 'integer',
-			'sanitize_callback'  => 'absint',
-			'validate_callback'  => 'rest_validate_request_arg',
 		);
 
 		$params['order'] = array(
@@ -2073,7 +2061,6 @@ class WP_REST_Posts_Controller extends WP_REST_Controller {
 			'type'               => 'string',
 			'default'            => 'desc',
 			'enum'               => array( 'asc', 'desc' ),
-			'validate_callback'  => 'rest_validate_request_arg',
 		);
 
 		$params['orderby'] = array(
@@ -2088,7 +2075,6 @@ class WP_REST_Posts_Controller extends WP_REST_Controller {
 				'title',
 				'slug',
 			),
-			'validate_callback'  => 'rest_validate_request_arg',
 		);
 
 		if ( 'page' === $this->post_type || post_type_supports( $this->post_type, 'page-attributes' ) ) {
@@ -2101,13 +2087,17 @@ class WP_REST_Posts_Controller extends WP_REST_Controller {
 			$params['parent'] = array(
 				'description'       => __( 'Limit result set to those of particular parent ids.' ),
 				'type'              => 'array',
-				'sanitize_callback' => 'wp_parse_id_list',
+				'items'             => array(
+					'type'          => 'integer',
+				),
 				'default'           => array(),
 			);
 			$params['parent_exclude'] = array(
 				'description'       => __( 'Limit result set to all items except those of a particular parent id.' ),
 				'type'              => 'array',
-				'sanitize_callback' => 'wp_parse_id_list',
+				'items'             => array(
+					'type'          => 'integer',
+				),
 				'default'           => array(),
 			);
 		}
@@ -2137,7 +2127,18 @@ class WP_REST_Posts_Controller extends WP_REST_Controller {
 			$params[ $base ] = array(
 				'description'       => sprintf( __( 'Limit result set to all items that have the specified term assigned in the %s taxonomy.' ), $base ),
 				'type'              => 'array',
-				'sanitize_callback' => 'wp_parse_id_list',
+				'items'             => array(
+					'type'          => 'integer',
+				),
+				'default'           => array(),
+			);
+
+			$params[ $base . '_exclude' ] = array(
+				'description' => sprintf( __( 'Limit result set to all items except those that have the specified term assigned in the %s taxonomy.' ), $base ),
+				'type'        => 'array',
+				'items'       => array(
+					'type'    => 'integer',
+				),
 				'default'           => array(),
 			);
 		}
@@ -2146,7 +2147,6 @@ class WP_REST_Posts_Controller extends WP_REST_Controller {
 			$params['sticky'] = array(
 				'description'       => __( 'Limit result set to items that are sticky.' ),
 				'type'              => 'boolean',
-				'sanitize_callback' => 'rest_parse_request_arg',
 			);
 		}
 
diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-taxonomies-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-taxonomies-controller.php
index 5ae26212df..053bff537b 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-taxonomies-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-taxonomies-controller.php
@@ -304,7 +304,6 @@ class WP_REST_Taxonomies_Controller extends WP_REST_Controller {
 		$new_params['type'] = array(
 			'description'  => __( 'Limit results to resources associated with a specific post type.' ),
 			'type'         => 'string',
-			'validate_callback' => 'rest_validate_request_arg',
 		);
 		return $new_params;
 	}
diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php
index ceaa26bee7..c9f9f910a8 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php
@@ -887,42 +887,41 @@ class WP_REST_Terms_Controller extends WP_REST_Controller {
 		$query_params['exclude'] = array(
 			'description'       => __( 'Ensure result set excludes specific ids.' ),
 			'type'              => 'array',
+			'items'             => array(
+				'type'          => 'integer',
+			),
 			'default'           => array(),
-			'sanitize_callback' => 'wp_parse_id_list',
 		);
 
 		$query_params['include'] = array(
 			'description'       => __( 'Limit result set to specific ids.' ),
 			'type'              => 'array',
+			'items'             => array(
+				'type'          => 'integer',
+			),
 			'default'           => array(),
-			'sanitize_callback' => 'wp_parse_id_list',
 		);
 
 		if ( ! $taxonomy->hierarchical ) {
 			$query_params['offset'] = array(
 				'description'       => __( 'Offset the result set by a specific number of items.' ),
 				'type'              => 'integer',
-				'sanitize_callback' => 'absint',
-				'validate_callback' => 'rest_validate_request_arg',
 			);
 		}
 
 		$query_params['order'] = array(
 			'description'       => __( 'Order sort attribute ascending or descending.' ),
 			'type'              => 'string',
-			'sanitize_callback' => 'sanitize_key',
 			'default'           => 'asc',
 			'enum'              => array(
 				'asc',
 				'desc',
 			),
-			'validate_callback' => 'rest_validate_request_arg',
 		);
 
 		$query_params['orderby'] = array(
 			'description'       => __( 'Sort collection by resource attribute.' ),
 			'type'              => 'string',
-			'sanitize_callback' => 'sanitize_key',
 			'default'           => 'name',
 			'enum'              => array(
 				'id',
@@ -933,23 +932,18 @@ class WP_REST_Terms_Controller extends WP_REST_Controller {
 				'description',
 				'count',
 			),
-			'validate_callback' => 'rest_validate_request_arg',
 		);
 
 		$query_params['hide_empty'] = array(
 			'description'       => __( 'Whether to hide resources not assigned to any posts.' ),
 			'type'              => 'boolean',
 			'default'           => false,
-			'sanitize_callback' => 'rest_sanitize_request_arg',
-			'validate_callback' => 'rest_validate_request_arg',
 		);
 
 		if ( $taxonomy->hierarchical ) {
 			$query_params['parent'] = array(
 				'description'       => __( 'Limit result set to resources assigned to a specific parent.' ),
 				'type'              => 'integer',
-				'sanitize_callback' => 'absint',
-				'validate_callback' => 'rest_validate_request_arg',
 			);
 		}
 
@@ -957,13 +951,11 @@ class WP_REST_Terms_Controller extends WP_REST_Controller {
 			'description'       => __( 'Limit result set to resources assigned to a specific post.' ),
 			'type'              => 'integer',
 			'default'           => null,
-			'validate_callback' => 'rest_validate_request_arg',
 		);
 
 		$query_params['slug'] = array(
 			'description'       => __( 'Limit result set to resources with a specific slug.' ),
 			'type'              => 'string',
-			'validate_callback' => 'rest_validate_request_arg',
 		);
 
 		return $query_params;
diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php
index bb3737df0c..1256c6810d 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php
@@ -1102,9 +1102,6 @@ class WP_REST_Users_Controller extends WP_REST_Controller {
 						'type'    => 'string',
 					),
 					'context'     => array( 'edit' ),
-					'arg_options' => array(
-						'sanitize_callback' => 'wp_parse_slug_list',
-					),
 				),
 				'password'        => array(
 					'description' => __( 'Password for the resource (never included).' ),
@@ -1171,31 +1168,31 @@ class WP_REST_Users_Controller extends WP_REST_Controller {
 		$query_params['exclude'] = array(
 			'description'        => __( 'Ensure result set excludes specific ids.' ),
 			'type'               => 'array',
+			'items'              => array(
+				'type'           => 'integer',
+			),
 			'default'            => array(),
-			'sanitize_callback'  => 'wp_parse_id_list',
 		);
 
 		$query_params['include'] = array(
 			'description'        => __( 'Limit result set to specific ids.' ),
 			'type'               => 'array',
+			'items'              => array(
+				'type'           => 'integer',
+			),
 			'default'            => array(),
-			'sanitize_callback'  => 'wp_parse_id_list',
 		);
 
 		$query_params['offset'] = array(
 			'description'        => __( 'Offset the result set by a specific number of items.' ),
 			'type'               => 'integer',
-			'sanitize_callback'  => 'absint',
-			'validate_callback'  => 'rest_validate_request_arg',
 		);
 
 		$query_params['order'] = array(
 			'default'            => 'asc',
 			'description'        => __( 'Order sort attribute ascending or descending.' ),
 			'enum'               => array( 'asc', 'desc' ),
-			'sanitize_callback'  => 'sanitize_key',
 			'type'               => 'string',
-			'validate_callback'  => 'rest_validate_request_arg',
 		);
 
 		$query_params['orderby'] = array(
@@ -1210,21 +1207,20 @@ class WP_REST_Users_Controller extends WP_REST_Controller {
 				'email',
 				'url',
 			),
-			'sanitize_callback'  => 'sanitize_key',
 			'type'               => 'string',
-			'validate_callback'  => 'rest_validate_request_arg',
 		);
 
 		$query_params['slug']    = array(
 			'description'        => __( 'Limit result set to resources with a specific slug.' ),
 			'type'               => 'string',
-			'validate_callback'  => 'rest_validate_request_arg',
 		);
 
 		$query_params['roles']   = array(
 			'description'        => __( 'Limit result set to resources matching at least one specific role provided. Accepts csv list or single role.' ),
 			'type'               => 'array',
-			'sanitize_callback'  => 'wp_parse_slug_list',
+			'items'              => array(
+				'type'           => 'string',
+			),
 		);
 
 		return $query_params;
diff --git a/wp-includes/version.php b/wp-includes/version.php
index a89e1e0186..d66f28edc9 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-beta1-39104';
+$wp_version = '4.7-beta1-39105';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.