Managing different versions of Microstation and Geopak with different clients

I'm currently working with a client that requires Microstation SS4 8.11.09.832 & Geopak SS4 8.11.09.878. I have these versions installed on my machine.

However, I also need to do with work another client that requires Microstation SS3 08.11.09.714 and Geopak SS4 08.11.09.845. It's my understanding that I cannot have two version of Microstation/Geopak installed concurrently on my machine without creating separate partitions to my hard drive.

Would there be issues using Microstation SS4 8.11.09.832 & Geopak SS4 8.11.09.878 with the client using the older software versions? Other individuals within our company that are specific to that client will be working on the same files, but using the older software versions Microstation SS3 08.11.09.714 and Geopak SS4 08.11.09.845 that the client requires.

I'm concerned that if I were to work on these same drawings with a newer version I could potentially corrupt the drawings/corridors within the drawings.

Thank you in advanced.