While I strongly agree with old tailoring principle of &quot;measure twice, cut once&quot;, I&#x27;d like to point something out. If older software had less <i>known</i> bugs it doesn&#x27;t necessarily mean it had less bugs. We see years-old security bugs (Heartbleed anyone?), or even decade-old bugs discovered constantly. Software is expanding into people&#x27;s lives faster than ever. As a consequence of software being used more, both the bug-detection rate and the bug-exploit rate will inevitably increase.