Game updates are weird. Sometimes developers don’t mention major changes because... well, I don’t really know. Depends on the game and the change. In Overwatch’s case, Lucio is now much better at both being a skater boy and saying see you later boy.
Lucio’s wall ride now covers a lot more distance, and instead of falling off at corners, he seamlessly transitions and keeps on skating. This makes him much easier for new players to pick up and adds versatility to his arsenal for experts. Instead of fretting about sticking to walls like some kind of shitty, low self-esteem Spider-Man, you’re free to focus on firing your gun while gliding over skirmishes or away from foes. A lot of people don’t understand just how mobile Lucio can be. Hopefully these changes will lead to more experimentation and strategy.
Also, I’d be remiss if I didn’t mention this: in console land (I play on PC), Symmetra just got a nasty 30 percent damage nerf to her turrets. A lot of people don’t think it makes much sense (her turrets are easy to eliminate, unlike Torbjorn’s), and she’s already a rare pick. At the same time, though, people can’t turn and fire on consoles quite as quickly as they can on PC. I imagine Blizzard figured this would even things out. The Ana patch hasn’t been in the wild on consoles for very long, so time will tell whether Blizzard’s team of top tweakers did one of their Trademark Tweaks (TM) for good or for ill.