I am trying to plead my case for the need to upgrade our EPDM files. We are currently running SolidWorks 2015 SP.2.1 however a majority of our files in the EPDM are SolidWorks 2014. I know that we can still open them, however I read somewhere that this can slow performance on opening assemblies that need to access older version files. For the life of me, I cannot find the website that I read this. Can anyone help me in locating this information? Thanks in advance.