rpc_pubsub_enable_block_subscription

raw details (from release v2.2.3):

{
  "name": "rpc_pubsub_enable_block_subscription",
  "properties": {
    "long": "rpc-pubsub-enable-block-subscription",
    "requires": "enable_rpc_transaction_history",
    "takes_value": "false",
    "help": "Enable the unstable RPC PubSub `blockSubscribe` subscription"
  },
  "isDeprecated": false
}