Indeed I did~ The new update has me so stoked for the new content that I'm going back through all of the previous levels, besides Pyramid of course, looking to see if there are any other "secret" levels as described in the secret codes README file - only checked out the first two so far but I'll be checking the rest soon.  I can't help but feel like the way it was described in the .txt that there are other little WIP secret portals to be found, maybe with easter eggs, more lore, or a sneak peek at what the next update will be like, and I'm enjoying just playing through yet again, hunting for secrets that might not even be there to begin with ^-^