diff -r 34716fd837a4 -r be944660c56a wp/wp-includes/blocks/spacer/block.json
--- a/wp/wp-includes/blocks/spacer/block.json	Tue Dec 15 15:52:01 2020 +0100
+++ b/wp/wp-includes/blocks/spacer/block.json	Wed Sep 21 18:19:35 2022 +0200
@@ -1,13 +1,23 @@
 {
+	"apiVersion": 2,
 	"name": "core/spacer",
+	"title": "Spacer",
 	"category": "design",
+	"description": "Add white space between blocks and customize its height.",
+	"textdomain": "default",
 	"attributes": {
 		"height": {
 			"type": "number",
 			"default": 100
+		},
+		"width": {
+			"type": "number"
 		}
 	},
+	"usesContext": [ "orientation" ],
 	"supports": {
 		"anchor": true
-	}
+	},
+	"editorStyle": "wp-block-spacer-editor",
+	"style": "wp-block-spacer"
 }