Hi Steve, 

The "Last Modified On" field is populated only when you click Document File Header button (or Document File) and it always inserts file last modification date:

Context.DestinationFileModificationDateTime.ToString("MM-dd-yyyy")

You can find it in the GhostDoc Pro->Options->Rules->File Header Template.

Is it not working for you?

Yes, using the Document File Header command works for me. This works for the initial documentation of the file.  Now, I make a change to the file and/or other files that have a Last Modified On field.  How do I update this field on all modified files that have an existing file header.  I would like to do this programmatically before check-in to my GitHub repository.

Thanks,

Steve

Thank you for the explanation. It is not possible now to do that in GhostDoc but we were thinking of updating the "Last Modified On" field on file/document saving (when clicking Save or Save All) - it will be optionally and turned off by default.

What do you think?

I think by adding the Last Modified On field to the file header, you need a mechanism to update it.  I would recommend an option to update the last modified field on save if the performance hit isn't too bad.  If performance is bad then I would want to do it in batch before I check in or do a release.