Copied and pasted from what you probably overlooked:

I'm sure 1.18~ 1.19 ~1.20 are all being worked on right now as we speak 1.18 is Ready 1.19 probably near completion 1.20 probably half complete

This is all being worked on currently those patch are the " Patches will come in quicker sucession" because of the fact that 1) they have a September Deadline to meet all those goals and 2) they need to get this game in tip top shape ASAP!

Do you really honestly believe that ALL they been working on was patch 1.18? Give me a break >.>