I am about to resubmit a manuscript to a journal, having now addressed the reviewers' feedback.
The instructions say to submit my final manuscript along with a "marked-up manuscript", which is "the final version showing all changes from the former version".
Since my manuscript is in LaTeX, what is the standard way of highlighting the changes I made? Had it been a Microsoft Word document, I would have used the "track changes" feature. More so than technical methods, I am wondering what format the reviewers typically expect. Are they asking for a marked-up, compiled PDF? Or a marked-up TeX source code? Or a side-by-side comparison of the source code?