In the documentation for enabling iceberg compatibility on delta tables, it states that the minReaderVersion for IcebergCompatV1 and IcebergCompatV2 is 2 (https://docs.databricks.com/en/delta/uniform.html#requirements).

However, when you run the REORG TABLE command to enable uniform format:

REORG TABLE table_name APPLY (UPGRADE UNIFORM(ICEBERG_COMPAT_VERSION=2));

 The table's minReaderVersion is upgraded to 3. Is there a reason for this or is this a bug?