&gt; Rust is a young language and I would be pleasantly surprised to see code written today still compile in five years.<p>We have had a code stability promise for months now in 1.0. So what you are saying here is that you do not believe that Rust will adhere to what it very publicly planned to do. Do you have specific reasons for this?<p>&gt;  To me, the big questions are what will happen to Rust if Mozilla changes strategies (Persona, Thunderbird, FirefoxOS) and whether Mozilla will continue to be a successful organisation.<p>Rust has a core team and community that overlaps a lot with, but is very much not identical to, Mozilla. Probably most Rust users aren&#x27;t even Firefox users.<p>Rust is not &quot;Mozilla&#x27;s language&quot;. It&#x27;s the Rust community&#x27;s language.