While the biggest part of today's Overwatch patch was the new 'Horizon Lunar Colony' map (read more on that here), the patch also came with balance changes for Reaper, Roadhog, and McCree—and added the Oni Genji and Officer D.Va skins previously locked behind Heroes of the Storm's Nexus Challenge to classic loot boxes. Here's what's new:
Reaper no longer causes enemies to drop health orbs on death. Instead, he now has a passive lifesteal effect that heals him for 20 percent of all damage he deals to heroes. The patch notes explain the switch, saying "since enemies needed to be dead for [the old passive] to work, it wasn’t very helpful unless the situation was already in your favor. His new passive lets him get immediate benefit from it," which is certainly true. I imagine we're going to start seeing a lot more invincible Reapers in the near future.
Roadhog got two updates: One is a simple change to make his head hitbox smaller (by 20 percent), which should let him live a little longer. The other is more substantial, with his gun now dealing 33 percent less damage, but firing 30 percent faster, and getting five shots in a clip instead of four. The patch notes claim this means his DPS will stay roughly the same, while simultaneously nerfing the burst potential of the dreaded hook-shoot combo that can insta-kill weaker targets.
There was also a small buff to McCree's Deadeye ultimate, causing its initial lock-on to happen quicker and charge more damage in its first second. The patch notes say "these changes make [Deadeye] more flexible and powerful," allowing him to get off a bit more damage if he's going to die quickly after using it, but not buff any other aspect of the ability.
And, of course, there were also a number of bug fixes and smaller UI updates—for example, the game now tracks damage done to heroes and damage done to barriers separately. Career profiles also now have an option to view stats for all modes and all competitive seasons—a welcome change that makes it easier to accurately assess a player's overall experience. You can read the entire patch note blog post here.