As of today, CaseRelief is signed, and every release from here on will be too.
A code signature is a seal put on a program when it's built. It shows who published it and proves the file hasn't been changed since. If anyone tampered with the installer along the way, or the download got corrupted, the seal breaks and Windows can tell. Every release gets signed when it's built, and nothing goes out unless the signature checks out.
Updates have their own protection on top of that. CaseRelief updates itself in the background, and before it installs anything it checks that the update really came from me. Updates install just for your Windows user, so they never ask for admin.
You can get it at caserelief.net/download.
– M