These settings are available in system.server_settings and are autogenerated from the ClickHouse snapshot.
openSSL.client.requireTLSv1
Require a TLSv1 connection. Acceptable values: <true>, <false>.
openSSL.client.requireTLSv1_1
Require a TLSv1.1 connection. Acceptable values: <true>, <false>.
openSSL.client.requireTLSv1_2
Require a TLSv1.2 connection. Acceptable values: <true>, <false>.