The feature is not yet enabled. Before the feature would get enabled, the participation keys on the network need to be regenerated.
I don’t know how long it would take… since it’s up to the node runners to renew their participation keys.
No, it’s not enabled yet on betanet.
Betanet is supposed to be one step before testnet/mainnet, but enabling the feature there implies that the pipeline ( master - betanet - mainnet ) would be blocked until mainnet reachs the desired participation key update threshold.
Instead, it would remain disabled until mainnet is ready with the participation keys… and then the switch would get enabled.
You wouldn’t want Algorand to block other big upgrades while “waiting”… right?