<p>Not sure if this fits here, but if I download the latest Pharo 7 VM on macOS High Sierra, the VM seems not to start properly, resulting in a black window and:</p>
<pre><code>2019-03-27 11:48:46.282 Pharo[1041:7933912] Pipeline state creation error: Function screenQuadFragmentShader is using language version 2.1 which is incompatible with this OS.
</code></pre>
<p>I looked into this a while ago, and there should be some flags to enable Metal 1 compatibility, then we would get at least down to El Capitan support. Adding Metal as required dependency is a non-backwards-compatible change, this should be handled with care (e.g. do we need non-metal builds, archive old non-metal builds for older OSs?).</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly, <a href="https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/382#issuecomment-477094965">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AhLyW-qYst5RZD_paMTdyCqDlvElF0-fks5va03RgaJpZM4cGCUY">mute the thread</a>.<img src="https://github.com/notifications/beacon/AhLyW96yjlj1YerD1RXmLhjDllN9kTAHks5va03RgaJpZM4cGCUY.gif" height="1" width="1" alt="" /></p>
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