V10.6
- Disabled Melee Weapons
- Challenging Realism
- Modified / Tweak Game Code Values

V10.5
- [NEW] Restore Boomer New Ability that is cut by developer
- Tweak Console Codes
- Vscript Message Added for activating the mod in-game.

V10.0
- Fixed Survivor Bots Zombie Range
- Fixed Smoker Tongue getting miss when it touches survivors
- Smoker Tongue Range Extended
- Gruesome Survivor Bot Reaction
- Tweak Special Killer Heatlh
- Special Killer Is Harder to Kill in Expert difficulty
- Zombie Burntime Extended

V9.0
- Allows you to spectate special infected
- Fixed Survivor Bot Intensity Eye Contact.
- Improved AI tank in Co-op only
- Enabled Short Finale for Versus & Realism only
- Added Realism & Versus Zombie Wanderers
- Fixed AI Tank being suicide when stuck at the maps
- Re-Balanced Incapacitated Accuracy Penalty & Reload Time
- Survivor Bot Skill set to the maximum value for hard & expert difficulty

V8.0
- Enabled Boomer Gibs after exploding
- Re-Edited Left 4 Dead User Interfaces Text (left4dead2_english.txt)

V7.5
- Renamed Mod "Advanced AI"
- Tweak ConVars
- Tweak Leading Survivor Bots
- Fixed Survivor Bots avoiding to close safe room door.

V7.0
- Fixed first Aid healing animation & time
- AI Survivors can healed when their health below 45
- New Implement ConVars
- Allow Survivors to crawl when incapacitated

V6.0
- Added forcing melee attacks on single infected to always be stomps.
- Enabled Tank Special Blood rather than the old effect
- Balance Bots to pick and use melee weapons
- Re-improved Bots
- Removed and Fixed Junk & Unused Convars

V5.1 [Enhanced Edition]
- Fixed Broken Animation in Co-op, Realism, & Survival

V5.0
- Improved AI Bots movement
- Re-Balanced Game Modes & Friendly Fires
- Capable of Bots To Lead When Players are Dead
- Improved Scavenge AI Bots to protect and follow players
- Close Range Improved
- Side-Stepping Bots Allowed to Concentrate firing weapons in mob
- Cleaned Mutations