diff --git a/doc/source/ext/resources.py b/doc/source/ext/resources.py
index 0c3e735f40..a7432b556b 100644
--- a/doc/source/ext/resources.py
+++ b/doc/source/ext/resources.py
@@ -43,6 +43,12 @@ _CODE_NAMES = {
     '13.0.0': 'Train',
     '14.0.0': 'Ussuri',
     '15.0.0': 'Victoria',
+    '16.0.0': 'Wallaby',
+    '17.0.0': 'Xena',
+    '18.0.0': 'Yoga',
+    '19.0.0': 'Zed',
+    '20.0.0': '2023.1',
+    '21.0.0': '2023.2',
 }
 
 all_resources = {}