OMNeT++ 4.2.1   

We’re happy to announce the release of OMNeT++ 4.2.1, a maintenance release of OMNeT++ 4.2. This release contains bug fixes only. Read the ChangeLog (after the More link) to see what 4.2.1/4.2 has to offer compared to version 4.1

What's New
Install opp_env, then enter: opp_env install omnetpp-4.2.1