Previously, if you were bleeding from a particular wound (let's say on the forehead), you could be treated twice for that wound. If you are treated three times, you will have to forfeit the match.
Under new rules, it doesn't matter if it's a different wound, if you are treated for bleeding three times, you will have to forfeit the match. So, let's say you were treated twice for a gash on the forehead. Then your nose starts bleeding and you get treated for that. It's considered the third time, and you will have to forfeit the match.
Blog posts
New rules to punish players who waste time in order to catch a breather during matches.
New IJF rule on Ushiro-Sankaku
New rules about Ushiro-Sankaku.
A significant change has been made relating to grip breaking.