Buying BW4 now still get you BW5 upgrade free?

I haven’t really used BW in the past (CloneCD was the main contender and then recently Alcohol took it’s place) but I have been giving 4.5.7 a go on trial.

Is the upgrade to BW5 still available to those buying BW4 now?

Yes it is, u get one year updates free

Yesterday I bought BW online.
I only got BW version 5 and the license key, and no registration key for BW 4.5.7.