Will update cause problem?

Hi.

I am about to update my version of Relex 2011 from M010 to M210. The rest of the company will do this update in a couple of weeks. I just want to make sure that if I make changes in a project, and then try to open it with another computer with a older version of relex, won't cause any problems.

Will I be able to work on a project with different versions of Relex?

Thanks in advance

- Albin