To install just throw it into your addons folder and overwrite anything it asks you to and enjoy!
12/24/19
========
Patch 2.4
Vscript changes:
+Survivor shoving! Move those pesky bots out of your way with a single right-click! This concept is also backed up by the L4D1 commentary where a dev talks about survivors having the ability to push each other.
+Boomers now do deadly explosive damage when they die close to you
-I know I said tanks were going to move faster in this update when they're on fire but something's not working now and I've gotta fix it so it's delayed until a further update. Cvar updates:
+EVEN further cleaned up unused cvars, notes, and stuff. Phew!
+Survivor glows restored to green. Using an RGB finding tool, I've found a pretty accurate green directly from beta footage. Incapacitated and pinned survivors are still white. The hunter no longer has a glow around himself when he pounces a survivor. Survivors who are "it" now have a white glow.
+Protection messages such as "Louis protected Bill" are now completely disabled. Unfortunately, the sound still plays
+Survivor FOV changes from patch 2.0 has been removed for user convenience
+Grenade tank damage has been increased to 9000 (doesn't seem to work though), pipe bomb timer has been decreased from 1 to 0.7, and pipe bomb radius has been increased from 750 to 925
+cl_ragdoll_version has been restored to 1, fixing any potential problems with custom ragdolls and survivor ragdoll mods.
+Leakers have been removed entirely. No more invincible boomers that force you to wait for a fire to go out! Yay
+Tank death animations finally restored +Shoving a hunter when they've pounced a survivor will instantly kill them, as seen in Beta footage
+Boomers can no longer vomit and doesn't have the horde drawing ability (temporary solution to a vscript problem)
+In the commentary, one of the devs talks about not having a third-strike rule. Going back to the beta footage, I haven't found an instance with a black and white screen. Also, there's no dizziness. This has been added to the mutation. It is, however, subject to change.
+The no collision edition and versus version now include the most recent updates unlike last time.
==================
Patch 2.4.1
+The versus mode has been overhauled thanks to IndigoShift, expect little to no problems with it now! It's actually really fun if I say so myself.
+Survivor glows that Infected see are more accurate to the beta version
+When shooting a teammate, a text message shows up "(player) has attacked a teammate" Like in beta footage and Counter-Strike Source
+Generic Friendly Fire lines now play when shoving other survivors. For example: "Ow, that hurt!"