Check the complete notes out hereQuoted from Balance:
PROTOSS
o -- Hallucination research time decreased from 110 to 80.
o -- Observer
+ Cost decreased from 50/100 to 25/75.
o -- Phoenix
+ Build time decreased from 45 to 35.
o -- Void Ray
+ Now deals 20% more damage to massive targets.
+ Flux Vanes speed upgrade removed.
* TERRAN
o -- Bunker
+ Build time decreased from 35 to 30.
# This is only a temporary change for the patch 1.2.0 PTR.
* -- SCV
o Repairing SCVs now assume the same threat priority as the unit theyre repairing.
+ SCV construction movement made more consistent.
* ZERG
o -- Infestor
+ Fungal Growth no longer affects air units.
Quoted from Blizzard:
PROTOSS
- Buildings
Nexus life and shields increased from 750/750 to 1000/1000.
- Void Ray
Damage level 1 increased from 5 to 6 (+4 armored).
Damage level 2 decreased from 10 (+15 armored) to 8 (+8 armored).
Flux Vanes speed upgrade bonus decreased from 1.125 to 0.703.
TERRAN
- Buildings
Barracks requirement changed from Command Center to Supply Depot.
Supply Depot life increased from 350 to 400.
- Medivac
Acceleration reduced from 2.315 to 2.25.
Speed reduced from 2.75 to 2.5.
- Reaper
Nitro Packs speed upgrade now has a Factory Requirement.
- Thor
Energy bar removed.
250mm Strike Cannons is now cooldown-based on a 50-second cooldown. Ability starts with cooldown available (useable immediately after upgrade is researched).
ZERG
- Buildings
Hatchery life increased from 1250 to 1500.
Lair life increased from 1800 to 2000.
Spawning Pool life increased from 750 to 1000.
Spire life increased from 600 to 850.
Ultralisk Cavern life increased from 600 to 850.
- Corruptor
Energy bar removed.
Corruption is now cooldown-based on a 45-second cooldown. Ability starts with cooldown expired (must wait for full 45-second cycle before usable).
- Infestor
Fungal Growth now prevents Blink.
- Roach
Range increased from 3 to 4.
We're increasing roach range. This will allow roaches to be more effective in large groups, giving the zerg more options in the mid to end game.Read the rest of the article for more information and blizzard's reasoning
Fungal Growth will now prevent Blink, which will give zerg a way to stop endlessly Blinking stalkers which can be very challenging to deal with in large numbers.
The Barracks are going to require a Supply Depot, which will impact a lot of early terran reaper pushes.
The reaper speed upgrade will require the Factory, which is meant to weaken a lot of the early terran reaper attacks that dominate so many matches, especially in team games.
We're making a number of increases to the health of zerg buildings, which will make the very vulnerable zerg technology structures more resistant to raids. We don't expect these hit point changes to have a super significant impact on the game, but the current numbers felt way too low.
Fixed an issue where Ultralisk cleave range was being unintentionally extended by larger targets.
Fixed an issue where the Phoenix's Graviton Beam was automatically canceled if you used it just after the Phoenix reached 50 energy.
Fixed an issue where queuing Return Cargo on a worker would cause it to ignore the built-in delay after it finished gathering.
Fixed an issue where players watching older replays or saved games would experience stuttering.
Fixed an issue where some Mac users were unable to join games properly.
)