&gt; A more Unixy way to do this would be &#x2F;opt&#x2F;swift-3.0&#x2F;bin, where &#x2F;opt&#x2F;swift is a symlink to &#x2F;opt&#x2F;swift-3.0.<p>This could cause entertaining problems for people who routinely install both current and beta versions of dev tools (which is relatively common; if you&#x27;re working on iOS10 features for your new app but still need to release iOS9 updates during the beta period you more or less _have_ to, for instance). I suspect that&#x27;s why they changed it in the first place.