old versions or not, none of them has any GPU support for rendering other than octane third party, I believe he ment it has to be natively, not third party..if not, why on earth even bother with that slow cpu renderer natively.What old version are you still using that makes you think all those features are missing natively or unavailable through 3rd party plugins?
As for denoisers ..that I think is adressed to some degree.
I say it´s the holy three, which is..
Number one, at vizrt..we talk about development, it´s about customer trust you know.
Number two..in lightwave we can model in layout like any other software.
Number three in lightwave, we can choose cpu or gpu natively to compete with free software.
and a lot lot more in a distant time coming within the LW development cycle..but we are only hinting, not declaring anything..it´s the only way to be sure.