We have released a new version of GOAL that is based more explicitly on the notion of a module and the concept that an agent is a set of modules. The syntax of the language has been redesigned to reflect this. The programming guide for the language has been rewritten as well.
Additional features added to the platform include a testing framework and the choice between using Prolog or OWL for knowledge representation.
The Eclipse plugin provides an integrated environment for programming GOAL 2.0 agents. See http://goalhub.github.io/eclipse/.