The terms of service as far as I could tell the only update was to the Privacy Policy link I think. But I do not have the original to compare it with. The privacy policy is real real long, and I am sure it had a lot of changes in regards to who has the right to use and sell what information they want and to who. I think that was most likely brought on by Microsoft's Purchase of github, and that steemit is telling people that their content is their content on steemit and github. I am not a github user since I do not develop programs, but I would imagine that new Privacy Rights are going up for github also.