Hi Harma22, thanks for your reply.
There have never been feature updates or any (big) code changes. The only difference in the 1.0.6 (as I recall now) is there are more vehicles in there. These vehicles cannot be properly gained (that code part is missing) but there aren't any other changes that can influence stability or create additional buggyness.
This build is not using Mono anymore when compiling but it is converted to c++ which can mean modding is more difficult todo. The reason we did this is because it this version runs much faster than the previous one.