Overwatch has a big update on the PTR today. In addition to the new hero Baptiste, there are a slate of hero balance changes that take aim, at least a little bit, at Overwatch's current tank-heavy meta. Here's everything that's changing:

General updates:
Armor

Beam-type damage is now reduced by 20 percent when hitting armor
Damage over time effects are no longer mitigated by armor
"The damage taken by armor from damage over time effects, such as Widowmaker’s Venom Mine, and beam weapons, like Symmetra’s Photon Projector, varied greatly," read the developer comments. "Now it will be more consistent and predictable."

Damage Boost

Damage boost is now applied when a projectile is fired rather than when it hits a target
"Previously, the effects of damage boosting were only accounted for if the damage-dealing hero was being boosted as they landed a hit," Blizzard said. "Now, damage is applied to the projectile as it is fired. This means the damage-dealing hero doesn’t need to be boosted when the projectile hits an enemy for the damage boost to be accounted for."

Knockback

Knockback distance is now more consistent
Heroes that are flying can now be knocked back and slowed
"Knockbacks are now less affected by how the enemy was moving when they were hit. Instead of having small or large knockbacks that depend on chance, knockbacks will feel similar regardless of the enemy’s movement leading up to the knockback," Blizzard said. "Allowing flying heroes, like Mercy when using her Valkyrie ability or D.Va using her Booster ability, to be properly knocked back makes for more fluid, realistic gameplay."

Sound

A new sound plays when you land a hit while damage boosted
A new sound plays when you land a hit, but it doesn’t do any damage
"With the addition of Baptiste, we wanted to be sure that you can tell when your hits were being buffed or nullified, regardless of what hero you’re playing," Blizzard said.

Ana
Nano Boost

Heal reduced from 300 to 250
"Giving Nano Boost an instant heal effect enabled players to survive longer and made Ana’s ultimate valuable," Blizzard said. "However, it needs to be slightly less effective for refilling large health pools."

Doomfist
Rising Uppercut

Cooldown reduced from seven to six seconds
Seismic Slam

Cooldown reduced from seven to six seconds
"Reducing the downtime of Doomfist’s abilities should make his gameplay feel more fluid," Blizzard said.

Hanzo
Sonic Arrow

Detection radius increased from seven to nine meters
"Because of how dense the environment is on some maps, the Sonic Arrow can feel ineffective in some areas. Increasing Sonic Arrow’s detection radius should make it more effective," Blizzard said.

Lúcio
Sonic Amplifier

Soundwave now counts towards Offensive Assists
"The knockback on Lúcio’s Soundwave is a great tool for pushing enemies into situations that get them killed, so they should be rewarded an offensive assist for doing so."

McCree
Fan the Hammer

Damage reduced from 55 to 50
Deadeye

Damage per second increased from 275 to 550 after locking onto targets for 2.5 seconds.
"After reducing armor’s effectiveness for all heroes, Fan the Hammer doesn’t need to deal quite as much damage," Blizzard said. "Increasing Deadeye’s damage after being locked on for a bit makes it more effective when attacking high health, static targets (like barriers) and heroes with over 600 health. It will not impact how dangerous this is for heroes under 600 health."

Mei
Endothermic Blaster

Primary fire damage increased from 2.25 to 2.75 (45 to 55 damage per second)
Ice Wall

Health reduced from 500 to 400
"Increasing the damage of Mei’s primary fire should make her Freeze and Icicle move combination more potent," Blizzard said. "Making the pillars on Mei’s Ice Wall easier to destroy means less waiting for the wall to disappear on its own and more opportunities to counter it."

Moira
Biotic Grasp

Heal over time duration increased from three to four seconds
Total healing increased from 50 to 65
"These minor changes make Moira’s passive healing effect on Biotic Grasp slightly more effective when topping off an ally’s health," Blizzard said.

Orisa
Fusion Driver

Movement speed penalty while firing reduced from 50% to 30%
"As a defensive tank, Orisa can have trouble pushing forward with the team," Blizzard said. "Allowing Orisa to move faster while firing should make it easier to apply pressure on the enemy team and use her barrier in proactive ways."

Pharah
Rocket Launcher

Minimum explosion damage increased from 16.25 to 20
"This change sets the Rocket Launcher’s minimum damage to where it was before we rebalanced its direct impact and explosive damage in a recent patch," Blizzard said.

Soldier: 76
Pulse Rifle

Damage increased from 19 to 20
Sprint

Delay before you can fire the weapon after using Sprint reduced from .5 to .3 seconds
Tactical Visor

Can target RIP-Tire and Immortality Field
"This change should potentially allow Soldier: 76 to kill an enemy hero one shot sooner. Reducing the time between when you use Sprint and when you can fire should make the ability more fluid and responsive. Giving Tactical Visor the ability to target Junkrat’s RIP-Tire and Baptiste’s Immortality Field drone is a quality of life improvement, since these are both critical targets," Blizzard said.

Sombra
Hack

Cooldown is reduced by half when hacking a health pack
"The cooldown on Hack often made it feel less effective to target health packs instead of players," Blizzard said. "This will make both health packs and players viable targets for hacking."

Torbjörn
Base health increased by 50 armor (250 maximum health)
Overload

Armor gain reduced from 150 to 100
"Torbjörn’s survivability was a bit low, so we’ve shifted some power from his Overload ability to his base health," Blizzard said.

Widowmaker
Infra-Sight

Reveals enemy health bars
Now canceled on death
"Infra-Sight had no counter to its effect, so it now ends when Widowmaker dies. To balance out its higher risk of use, Infra-Sight now reveals enemy health bars to Widowmaker’s team," Blizzard said.

Wrecking Ball
Adaptive Shield

No longer cancels Roll mode
"This will make Adaptive Shields a more powerful survival tool, since being forced out of Roll mode left Wrecking Ball more susceptible to fire," Blizzard said.