You are about to download eZ Publish Community Project, built by fellow contributors from the eZ Community, and eZ's engineering team (check how to get involved). This is the version of eZ Publish where innovation happens, full-steam, built and made available every month.
It comes with no guarantee that you can run your business-critical web platform without a problem. If this last point is an issue, have a deeper look at eZ Publish Enterprise Edition, based on Community Project ("the foundation").
For migration purposes, you may need to have access to