<i>So, why LibreSSL went with a 2+ year old version of that file?</i><p>The LibreSSL philosophy is to (at least initially) clean up the parts of OpenSSL that are &quot;cruft&quot;. E.g. dropping support for long-dead computer architectures and protocols, removing homebrew malloc(). Stuff like that.<p>The LibreSSL guys have tried to stay away from the highly tricky crypto stuff. Messing with that could have serious security implications. They can address math and crypto later. For now there&#x27;s still a lot of low hanging fruit they can pick.