Project Files from v19 can't be opened by v18 (or in general, lower versions of VP can't open project files from newer versions).
I work with a number of different editors who have older versions of VP (ranging from 15 upwards). So how can I make sure that the project file I'm working on can be edited by someone with a lower version of VP?
[There are other scenarios where this might be necessary also. I have a colleague who can't get V18 or V19 to work on his computer, but V17 works fine. He has a license for a plugin that I don't have, but he couldn't open the project file I sent him! So we're stuck.]
I looked in Save As... but there doesn't seem to be an option to save the file in an older format (like you have with Excel or Word, for instance).
What to do?
[Oh, and what information will go missing or be degraded if I save as an older version of the project and then re-open it after it's been worked on back in my new version?]