Since Microsoft announced that it was giving up control of its Iron languages, there has been a quiet debate on where to host the project. The negotiations have finally been settled and the winner is Github for source control and CodePlex for issue tracking.
Moving to Github allows the coordinators to better manage the large amount of code that overlaps both projects. These include the DLR itself as well as unit tests that address interoperability between the two languages. For those that prefer Mercurial to Git, there is a mirror on bitbucket.
Issue tracking will remain on CodePlex. It was decided that attempting to move the issue tracking over as well would be too disruptive at this time. Currently the IronPython team is asking for help in verifying the backlog of issues, many of which date back to version 1 and may have since been corrected.
Source Code Repositories
Issue Tracking