I have seen some info on ChakraCore but just wanted to see if it was sane information and one of the reasons why the change was made. This is probably also more reasons to switch from V8 ?

I had to check JS engines for an unrelated project and ended up learning a lot about them. Primary reason is that Chakra is relatively small and I therefore get along with it much better. I managed to compile it directly via koremake, to port it to consoles and I got debugging support working. Speed is very similar (but overall V8 is faster), executable size is less than half (and it's a single exe without any libs).