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<p>Hello.</p>
<p>Downstream, in Ubuntu, we've got NGINX 1.14.0 in the
repositories, and TLS 1.3 enabled in the bionic-updates repository
due to OpenSSL being bumped to 1.1.1. We don't currently have a
mechanism <br>
</p>
<p>This means that TLS1.3 is "on by default" with the standard
config being rolled. And nginx cannot control TLS1.3 because it's
built against the previous 1.1.0 libs.</p>
<p>A request to do a no-change rebuild to allow NGINX has been
blocked because we're concerned about other TLS 1.3 behaviorisms
and whether there's any other TLS related behaviors we need to be
concerned about doing a no-change rebuild against OpenSSL 1.1.1
with this library version.</p>
<p>There's a few considerations here. We need to make certain that
such a rebuild to allow NGINX to control TLS 1.3 protocol or
ciphers isn't going to introduce any additional TLS1.3 behaviors
or feature functionality that otherwise would not be controlled by
OpenSSL under the hood.</p>
<p>Is the NGINX team aware of any such 'extra' behaviors regarding
TLS 1.3 which would be altered or introduced by a rebuild of the
1.14.0 packages against OpenSSL 1.1.1 which would otherwise block
such a rebuild?</p>
<p><br>
</p>
<p>Thomas<br>
</p>
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