v.24.8Backward Incompatible Changes
LowCardinality Data Type Alternative Syntax Deprecated
In previous versions, it was possible to use an alternative syntax forLowCardinalitydata types by appendingWithDictionaryto the name of the data type. It was an initial working implementation, and it was never documented or exposed to the public. Now, it is deprecated. If you have used this syntax, you have to ALTER your tables and rename the data types toLowCardinality. #66842 (Alexey Milovidov).