Family compatibility

[ram]

We're new to Revit and I was wondering...as we upgrade to the 2010 version will our in-house created families work with 2010 and 2009?
In other words, are the families version specific like the .rvt files?

Thanks for any insight.

[mwiggins121466]

They are version specific. We have folders for 2008, 2009, and eventually 2010 for the families to reside in. They are NOT backward compatible.

[mjdanowski]

Remember if you load 2009 families into a 2010 project, it will not update the family file, it will only upgrade it for that project.