Mainline htop never worked on OSX. OSX&#x27;s htop is a fork of 0.8.2 with all the linux stuff stripped out and replaced, and then not really updated (let alone resynced with mainline): <a href="https:&#x2F;&#x2F;github.com&#x2F;AndyA&#x2F;htop-osx" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;AndyA&#x2F;htop-osx</a>