Yeah but no change-log & it's lame how the date doesn't change alongside the version no (I mean in the store).
It seems to always keep the date that the app was first listed in the Store!

I believe this is where he normally posts news about updates to his apps:
https://sites.google.com/site/marxodian/home/news
But it seems he hasn't gotten round to doing that yet, I hope he hasn't forgotten.