The latest Beta patch for Overwatch is a rather small one. The patch has a small amount of changes made to Maps and Heroes as well as some fixes to bugs. In heroes section, the developers have made a few changes to McCree, Roadhog, and Reinhardt. As for maps, Blizzard has increased the time that is needed to capture the map objectives.
Of course, the changes doesn't stop here, so you would like to read the full list of patch notes here!