Sorry for being a few days late for the update, but here are the notes! The beta 5 is a full installer and can be downloaded
here.
General- New map: (2p) Leviathan Eye 1.0 beta 4 (by Blessed Spartan)
- New map: (4p) Meridian High City 1.1 (by Max Power)
- New map: (6p) Meridian High City 1.2 (by Max Power)
- New model: Techmarine Master-Crafted Bolter (by David-CZ)
- New model: Dark Reaper (by David-CZ)
- New model: Dark Reaper Exarch (by David-CZ)
- New portrait: Devastator Marine Squad (by Kilgarn)
- New portrait: Grey Knight Librarian (by Kilgarn)
- New portrait: Grey Knight Terminators (by Kilgarn)
- Fixed auto-targeting behaviour on activated Power Nodes
- Fixed squad tab behaviour (shuffling of garrisoned units)
- Doom of Malan'tai "Paroxysm" target conditions changed (maybe affects monstrous creatures now)
- Sentinel "Ground Pound" stun mechanic changed (maybe units won't be permanently stunned now)
Space Marines- Apothecary "Armor of the Apothecarion" speed bonus increased from 1 to 1.5
- Techmarine "Missile Launcher Turret" range increased from 50 to 55
- Terminator Commander "Assault Cannon" damage increased from 100 to 128
- Terminator Commander "Heavy Flamer" now does splash damage as intended
- Commander "Lightning Claws" cost decreased from 70/70 to 70/40
- Scout Squad "Sniper Rifles" renamed to "Sniper Rifle"
- Scout Squad "Sniper Rifle" cost decreased from 100/35 to 100/30
- Tactical Marine Squad "Flamer" build time increased from 15 to 20 seconds
- Tactical Marine Squad "Sternguard Veteran Squad" no longer allows using abilities while upgrading
- Assault Squad "Vanguard Veteran Squad" no longer allows using abilities while upgrading
- Vanguard Veteran Squad health regeneration increased from 0.5 to 1.5
- Vanguard Veteran Squad health regeneration now increases by 1 hp/s when fighting
- Terminator Squad "Heavy Flamer" now does splash damage as intended
Orks- Mekboy "Kult of Speed" cost decreased from 125 to 100 Waaagh!
- Mekboy "Mekboy Turret" maximum engineers decreased from 6 to 1
- Mekboy "Mekboy Turret" damage decreased from 300 to 150
- Mekboy "Mekboy Turret" courage damage decreased from 400 to 0
- Mekboy "Mekboy Turret" cooldown decreased from 1.5 to 1
- Mekboy "Mekboy Turret" cost decreased from 200/30 to 150/20
- Mekboy "Dakka Dakka Dakka" cooldown decreased from 1.5 to 1
- Kommando Nob "Grapplin' Hook" fixed
- Painboy "Speshul Git Sauce" regeneration boost duration decreased from 12 to 10 seconds
- Painboy "Very Speshul Git Sauce" regeneration boost duration decreased from 12 to 10 seconds
- Weirdboy ranged attack cooldown increased from 2 to 3
- Weirdboy ranged attack reload duration increased from 2-2 to 3-3
- Weirdboy "Warp Vomit" stun/debuff duration decreased from 10 to 8 seconds
Eldar- Dark Reaper Squad cost increased from 350/30 to 400/30
- Dark Reaper Squad "Aspect of Reaper" cost decreased from 100/25 to 65/25
- Dark Reaper Exarch cost decreased from 85/15 to 65/15
- Falcon cost decreased from 375/95 to 360/90
Tyranids- "Infestation" cooldown increased from 30 to 45 seconds
- Hive Tyrant "Venom Cannon" cooldown decreased from 2 to 1.5
- Hormagaunt Brood Warrior Synapse Leader no longer detects infiltrated units
- Hormagaunt Brood Warrior Synapse Leader health decreased from 525 to 350
- Hormagaunt Brood Warrior Synapse Leader now grants the Basic Synapse effect instead of the Melee Synapse effect
- Termagant Brood Warrior Synapse Leader no longer detects infiltrated units
- Termagant Brood Warrior Synapse Leader now grants the Basic Synapse effect instead of the Ranged Synapse effect
- "Venom Cannon" damage increased from 90 to 100
Chaos- Chaos Space Marines "Mark of Khorne" cost decreased from 90/30 to 70/30
- Chaos Raptors "Daemonic Fury" now unlocked by Aspiring Champion
- Chaos Raptors "Daemonic Fury" damage decreased from 200 to 150
- Chaos Raptors "Blood Maul" removed for now
- Bloodcrusher build time decreased from 45 to 40 seconds
Imperial Guard- Leman Russ "Vanquisher" cooldown decreased from 4.5 to 3.5
- Cadian Kasrkin Squad "Grenade Launchers" damage increased from 65 to 70
Grey Knights- Inquisitorial Storm Troopers "Grenade Barrage" damage decreased from 25 to 20
- Strike Squad cost decreased from 500/0 to 450/0
- Strike Squad special attack damage decreased from 20 to 15
- Strike Squad "Energy Burst" targeting radius increased from 25 to 30
- Strike Squad "Incinerator" reload time decreased from 3-3 to 2-2
- Purgation Squad GR value decreased from 21 to 15
- Purgation Squad incinerator courage damage increased from 20 to 22.5
- Purgation Squad incinerator reload time decreased from 3-3 to 2-2
- Interceptor Squad "Krak Grenade" now behaves like Melta Bomb
- Interceptor Squad "Psyk-out Grenade" projectile speed increased from 9-15 to 12-20
- Interceptor Squad "Incinerator" reload time decreased from 3-3 to 2-2
- Grey Knight Terminator passive energy drain increased from 2.5 to 3.75 per second
Source: Dawn of War Codex