File opening issue

Hi there.
I am trying to open a Rhino file but I keep on receiving the same error message, stating that it has been saved with a more recent version of Rhino hence I am unable to open it. I have checked the status of the version I am running on my machine and, as for today, the software is up to date… any idea how can I go around the problem?

Thanks.

Looks like the file was created by the WIP V6 of Rhino, aka Serengeti. Welcome to Serengeti You need to download and install the WIP to open it.

Great. Thanks!