diff --git a/UPDATING.md b/UPDATING.md
index 412bff8596866..700fc9332d9ef 100644
--- a/UPDATING.md
+++ b/UPDATING.md
@@ -61,6 +61,7 @@ assists people when migrating to a new version.
 - [29798](https://github.com/apache/superset/pull/29798) Since 3.1.0, the intial schedule for an alert or report was mistakenly offset by the specified timezone's relation to UTC. The initial schedule should now begin at the correct time.
 - [30021](https://github.com/apache/superset/pull/30021) The `dev` layer in our Dockerfile no long includes firefox binaries, only Chromium to reduce bloat/docker-build-time
 - [30274](https://github.com/apache/superset/pull/30274) Moved SLACK_ENABLE_AVATAR from config.py to the feature flag framework, please adapt your configs
+- [30099](https://github.com/apache/superset/pull/30099) Translations are no longer included in the default docker image builds. If your environment requires translations, you'll want to set the docker build arg `BUILD_TRANSACTION=true`.
 
 ### Potential Downtime