Current PTR has several nerfs and buffs;
zenyata nerf: the space between balls on his right click is increased causing his balls to hit in sequence slower and with potential of greater spread if the targeting recticle moves to track the opponent.
Diva nerf: splash damage of each rocket reduced from 6 to 4. Rockets do impact damage and then splash. This is because Blizz felt she was doing too much burst damage.
Reaper buff: Reaper can cancel his wraith form at any point before it normally expires. You can’t instantly fire as soon as you come out. His wraith form speed was also increased from 25% to 50%. Reapers ult also reloads his hellfire shotguns.
Mei buff: Mei can freeze more than one target as her primary fire now pierced targets like Moira’s healing spray. It does not pierce barriers like Rhein’s shield.
“I’m not locked in here with you! You’re locked in here with MEI!”