Update dec2024.md

docs/release_notes/2024/dec2024.md

@@ -40,4 +40,9 @@ For more information on the APIs, see Active and Total Users.
 
 ### Minor Improvements {#MinorImprovements342}
 
-- **Execution Metrics bug fix**: There is a new diagnostic error code when authentication fails while attempting to test a Spark Fabric connection.
+- **"Offset" column name bug fix**: We fixed a bug where naming a column using a Snowflake reserved keyword, such as "Offset", would break when using a Reformat Gem.
+
+- **New Spark Fabric diagnotic error codes**: There are new diagnostic error codes for the following failures:
+  - Unable to reach Databricks endpoint.
+  - Unable to write execution metrics because Hive Metastore is not enabled on your Spark.
+  - Authentication fails while attempting to test a Spark Fabric connection.