Following an answer to this question, I'm starting to look at keeping multiple .htaccess files for my different environments. The gist of it is, you create a file for each environment (.htaccess-dev, .htaccess-prod, etc) so you can track them all in Git, then symlink .htaccess to whichever file you want to use on a given environment. Simple enough, and easy to rebuild if it gets destroyed.
Before I implement this though, I wanted to do my diligence - I can't find anything relating to security of .dotfiles past .htaccess/.htpasswd. If I had .htaccess-dev and .htaccess-prod on my production server, would they be accessible through a browser? Are there any other security considerations I should be aware of?