Arma 3
4,992 ratings
Data Type: Mod
File Size
1.993 MB
May 28, 2015 @ 8:37am
Jan 10 @ 7:24am
34 Change Notes ( view )

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CBA: Community Based Addons for Arma 3
Current version: 3.9.1
What does the name Community Base Addons mean? It is a system that:
  • Offers a range of features for addon-makers and mission designers.
  • Aims to have community wide acceptance and to be used as much as possible by community addons to maintain compatibility.
  • The community is very much encouraged to request or submit functionality.
  • The most obvious example would be to submit functions to be included in the CBA function library.
Full documentation is available at GitHub[]

Licensed Under GPLv2
Any addon which calls CBA-defined functions need not be licensed under the GPLv2
or released under a free software license. Only if you are directly including CBA code
in your addon's binarized PBO or redistributing a modified version of CBA itself would
your work be considered derivative and therefore be legally required to be released under
the terms of the GPL. (And there's no reason to ever do either of these.)
Popular Discussions View All (52)
Sep 28, 2018 @ 12:10pm
Starting Game, CBA_A3 Signature Mismatch
Feb 28, 2017 @ 1:50pm
Why a new key everytime
SaucyLooseAnalPeppers | ewan
Jul 22, 2017 @ 12:45am
Script userconfig\cba\settings.sqf not found
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JGaz-UK Jan 19 @ 3:01am 
Apologies. Our bad1 Zap found some extra CBA keys in our isladula addon folder that had some how got in there.? anyone else having problems might have old cba stuff still on PC or server.
Zapperguy Jan 16 @ 8:56am 
J-Gaz-UK speaks the truth. Have been using CBA for years; this is not simple user error. There's a glitch in the key or in the addon's recognition of the client/server keys.
JGaz-UK Jan 16 @ 5:15am 
JGaz-UK 1 hour ago
All players when starting a mission get the missmatch message that says server version is ":,Level:4)" The scripting in the keys of the update & the new key on server is the same, somethings wrong somewhere, & we are not the only one with CBA update problems yes?

Maybe its a Dedicated server problem? The name of the key we are using player & on Dedicated server is "cba_3.9.1.181229"
JGaz-UK Jan 16 @ 3:43am 
We did exactly that checked & double checked our dedicated server keys match the update. made sure old CBA key was deleted. even read the contents of the keys to make sure they match.
B.Miller Jan 14 @ 3:59pm 
You need to add the key from the cba_a3 update as well to the server keys. Ideally delete the old one to force everyone to the new version. Otherwise you can't use the new version. Update itself (with the correct key) works just fine.
JGaz-UK Jan 14 @ 4:49am 
any chance of a Hotfix update?
JGaz-UK Jan 12 @ 12:14pm 
updated players from Steam (auto) & server to same version & getting missmatch notice says its version it this a key mistake
SickSidewinder9 Jan 11 @ 1:12pm 
So, am I the only 1 who gets range spamming in chat when using the visible laser? Can you make it not do that?
B4U2N0I Jan 11 @ 12:29pm 
why cant we play arma it wont let me update the new cba
SoundBeat Jan 11 @ 8:58am 
Would be great if someone could PM me a way to fix CBA, thank you in advance