docs(UPDATING): Adding downtime for apache#16756

exemplary-citizen · Oct 29, 2021 · 5ed9260 · 5ed9260
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@@ -31,6 +31,8 @@ assists people when migrating to a new version.
 
 ### Potential Downtime
 
+- [16756](https://github.com/apache/incubator-superset/pull/16756): The renaming of column `dbs.allow_csv_upload` fails for MySQL 8 users because there's a check constraint on it.
+
 ### Deprecations
 
 ### Other