There has been a new balance update to Heart of the Swarm, the contents of which you can see below.
Zerg
- Swarm Host
- Cost modified from 200 Minerals and 100 Vespene to 100 Minerals and 200 Vespene
- Supply cost increased from 3 to 4
- Movement speed increased from 2.25 to 2.95
- Swarm Hosts now require the Burrow research in order to burrow
- Swarm Hosts no longer collide with Locusts
- Spawn Locusts – This ability has been reworked
- Auto-cast removed, Spawn Locusts must now be manually cast.
- Spawn Locusts cooldown increased from 25 seconds to 60 seconds
- Casting Spawn Locusts no longer requires a Swarm Host to be burrowed
- Locust
- Weapon speed increased from .8 to .6
- Locust duration increased from 15 seconds (+10 seconds with Enduring Locusts) to 25 seconds
- Infestation Pit
- Enduring Locusts – This upgrade has been removed
- New upgrade: Flying Locusts - Allows Locusts spawned by Swarm Hosts to fly. Flying Locusts can use Swoop to land and attack
- Requires Lair
- Cost is 200 Minerals, 200 Vespene, 160 seconds
- Allows Locusts spawned by Swarm Hosts to fly. Flying Locusts can use Swoop to land and attack
- Swoop: Orders the Locust to land at the targeted location, allowing it to attack
- Viper
- Blinding Cloud range increased from 10 to 11
Terran
- Raven
- Point Defense Drone duration decreased from 180 seconds to 20 seconds
Protoss
- Tempest
- Bonus damage versus massive air units decreased from +50 damage to +14 damage.
Source:
Battle.net - Heart of the Swarm Balance Update -- April 9, 2015