@partha, thanks for your interest. I’m helping an user right now who’s trying to get LHDR running on OSX 12. You can see our lengthy discussion here “Problem compiling luminancehdr on mac OS X 12”. At the end we’ve been able to compile and link, LHDR runs fine from the build root but crashes if launched from the final destination: /Applications/Luminance HDR 2.5.0.app/