diff --git a/aip/general/0162.md b/aip/general/0162.md
index c8de3e261d..77e819eace 100644
--- a/aip/general/0162.md
+++ b/aip/general/0162.md
@@ -144,8 +144,8 @@ message TagBookRevisionRequest {
 }
 ```
 
-- The `name` field **should** require an explicit revision ID to be provided.
-  - The field **should** be [annotated as required][aip-203].
+- The `name` field **must** require an explicit revision ID to be provided.
+  - The field **must** be [annotated as required][aip-203].
   - The field **should** identify the [resource type][aip-123] that it
     references.
 - The `tag` field **should** be [annotated as required][aip-203].
@@ -403,6 +403,7 @@ used, and **must** clearly document it.
 
 ## Changelog
 
+- **2023-06-09**: Clarified that tagging requires a revision ID.
 - **2021-04-27**: Added guidance on returning the resource from Delete Revision.
 
 [aip-123]: ./0123.md