Squelch informed us in our forums that the CBA Team has made the first public release of the Community Base addons for ArmA2.

Quote Squelch :
What does the name Community Base Addons mean? It is a system that:

* Aims to have community wide acceptance and to be used as much as possible by community addons to maintain compatibility.
* Offers a range of features for addon-makers and mission designers.
* 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. This would make them available to a large audience of developers and save on replicated development.

Features:

* Extended Eventhandlers: official port of XEH for Arma 2.
* Function library: Integrated into the BIS Functions module.
* Many other things you never thought you needed but won't be able to live without...
* Full documentation is available at DevHeaven.