I’d be shocked if this wasn’t requested somewhere, but if it has been, I can’t find it.
Use case or problem
I need to search and replace on a case-sensitive basis. I need to replace “his” with “my” and “His” with “My.”
Proposed solution
Add a checkbox that allows to find & replace dialog to opt in to case-sensitive search.
Current workaround (optional)
At the moment, I search for lowercase and then manually replace when it finds the uppercase version.