Procmail...not updated since 2001

why is it that mail filtering in virtualmin is still using procmail when this program has not been updated since 2001 and its author has stated that people shouldnt be using it anymore?

I have noticed an uptick in spam and unwanted email coming through my system and I am looking to cut back on this. I had thought perhaps procmail was the solution, however, in light of the above, should i be looking elsewhere such as maildrop?