It&#x27;s gotten too onerous to support old software. There used to be one Linux, one BSD, and a couple of Windows &#x2F; DOS. Mac was probably around too, I just never interacted with it in the 90s &#x2F; early 2000s.<p>Backporting security fixes and replicating interconnected bugs across all the combinations of setups is impossible. Just getting the latest version <i>fixed</i> in all is onerous.<p>Keep current is my philosophy. It&#x27;s why I like the Ruby community, the global namespace makes it impossible for libraries to stay behind too long.