I have a midterm exam written with the solutions included using the
versions package. I use this to create an assignment/exam PDF and a solution PDF from the same basic tex file (this is great---change a question a bit and you don't have to change the question in a separate solutions file).
Is there a way to create separate assignment and solution tex (as opposed to PDF) files that exclude and include the appropriate version environments? The reason that I want to do this is because this is a take-home exam and some students want to submit their answers using LaTeX on the original file.