The current opendnssec porthas seen a massive rewrite by the upstream
so it was rechristened opendnssec Version 2.
To quote the announcement at https://www.opendnssec.org:

"OpenDNSSEC got a entire re-write of the enforcer. This part of
OpenDNSSEC controls changing signing keys in the right way to perform
a roll-over. Before, the enforcer would perform a roll-over according
to a strict paradigm. One scenario in which deviations would not be
possible.

The new enforcer is more aware of the zone changes being propagated in
the Internet. It can therefore decide when it is safe to make changes,
rather than to rely upon a given scenario.

PR: 211018
Submitted by: Jaap Akkerhuis <jaap@NLnetLabs.nl>
Sponsored by: DK Hostmaster A/S