Netrunning is maybe the biggest change compared with cp2020,more in line with cp2077 canonwise due to datakrash,gamewise I think that is because netrunners were always a little bit difficult to incorporate in a players party. Also there is more clarity of what corpo,nomad,cop,media special ability can and cant do, and I think corpo characters are easier to incorporate because in RED age megacorps are not that big compared wih 2020 and 2077,so you can put characters in mid-sized companies easily. Solo special ability also has been reworked, not fully remember the mechanism but looked to me that it was to avoid them always winning initiative rolls