If you check his Patreon he actually counted the last update as 2/52 for the weekly updatesI know it was no new content, but didn't he want to add the missing ~600-1000? renders to these first weekly updates, making them 3-400 instead of 100 renders big? So in that case the last update was the (official) first 52/52 update and the 1-2 next would also be bigger containing the rest of those last delayed renders.