HI.
I have tried to implement the latest changes of the official core of ZXnext, not all implemented but if someone wants to try it or see the code you have it in :
https://github.com/albconde/ZXNext_MISTer
I do not implement the changes in the sound variables and in the zxula_timming .
So far I haven't been able to make those changes work in the core.
Some games that no not work with the last oficial core works now like:
Captain Square Jaw demo work
Tx-1696 demos sound and graphics works
The way of the sploding fist fx fixed
The games that check version of the core seens to work
I'm starting to learn the subject of core implantation, so if there is a problem I don't know if I will be able to solve it for now.