Breaking Changes

helm/onprem-clickhouse-cluster version 1.1.210

Starting with chart version 1.1.210, new config constraints are included by default. If you are using a ClickHouse server version lower than 25.10, you must exclude these constraints by adding the following to your server configuration:

server:
  excludeConfigConstraints:
    - allow_experimental_qbit_type
    - rewrite_in_to_join
    - allow_experimental_alias_table_engine

Without this configuration, ClickHouse will fail to start as these settings are not recognized by versions prior to 25.10.