* TERRAN
o Battlecruiser
+ The build time has been decreased from 110 to 90.
o Fusion Core
+ The build time has been decreased from 80 to 65.
o Hellion
+ The range has been increased from 5 to 6.
o Planetary Fortress
+ The splash damage now originates from the center of the target, rather than the impact location near the unit in order to maintain more reliable splash damage.
o Raven
+ Seeker Missile range has been decreased from 9 to 6.
+ Seeker Missile splash radius has been decreased from 2.4 to 2.
+ Seeker Missile upgrade no longer requires Fusion Core.
o Siege Tank
+ Life increased from 150 to 160.
+ Siege Mode splash damage now originates from the center of the target, rather than the impact location near the unit in order to maintain more reliable splash damage.
o Thor
+ Ground damage decreased from 45 to 30.
+ Ground rate of fire improved from 1.93 to 1.28.
+ Air damage changed from 8 (+4 Light) to 6 (+6 Light).
+ 250mm Strike Cannons are now an upgrade at the Factory Tech Lab.
+ 250mm Strike Cannons research now costs 150/150 and 110 seconds.
+ 250mm Strike Cannons energy cost increased from 100 to 150.
+ Anti-Air splash damage now originates from the center of the target, rather than the impact location near the unit in order to maintain more reliable splash damage.
* PROTOSS
o Archon
+ The splash radius has been increased from 0.8 to 1.
+ Splash damage now originates from the center of the target, rather than the impact location near the unit in order to maintain more reliable splash damage.
o Colossus
+ The damage has been decreased from 20 to 15.
+ The rate of fire has been improved from 2.2 to 1.65.
o Phoenix
+ Can now attack while moving.
o Sentry
+ The damage has been decreased from 8 to 6.
* ZERG
o Brood Lord
+ Life has been decreased from 275 to 225.
+ Armor has been decreased from 2 to 1.
o Corruptor
+ Corruptor damage changed from 12 (+10 Massive) to 14 (+6 Massive).
+ Corruptor speed increased from 2.75 to 2.9531
+ Corruption ability redesigned:
# Single target.
# Increases damage taken by 20%.
# Lasts 30 seconds.
# Costs 100 energy.
# Range 6.
# Cannot target structures.
o Infestor
+ Neural Parasite is now an upgrade at the Infestation Pit.
+ Neural Parasite research costs 150/150 and 110 seconds.
+ Neural Parasite can now target Air units.
+ Neural Parasite energy cost increased from 50 to 100.
o Spine Crawler
+ The root time has been increased from 6 to 12.
o Spore Crawler
+ The root time has been increased from 6 to 12.
o Ultralisk
+ Damage has been increased from 18 to 25.
Terran definitely got buffed in

Protoss had a few minor changes,

*Also check out this video of the new Phoenix "Move attack":

Hopefully this batch of changes will make for some innovative and dynamic gameplay, as Zerg definitely got hit hardest, with Protoss having not too significant changes, and Terran tier 2 and 3 units getting a general buff.
- Also be sure to check out insight from Blizzard regarding the changes made in this patch in the StarCraft II Situation Report : Patch 11

Links
Battle.net - Patch 11 Notes
Battle.net - StarCraft II Situation Report : Patch 11