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(This article was first published on <strong><a href="https://blog.rstudio.com/2018/09/04/shiny-server-pro-1-5-8/"> RStudio Blog</a></strong>, and kindly contributed to <a rel="nofollow" href="https://www.r-bloggers.com/">R-bloggers)</a> </div>
<p><a rel="nofollow" href="https://www.rstudio.com/products/shiny/shiny-server/" target="_blank">Shiny Server 1.5.8.921 and Shiny Server Pro 1.5.8.985 are now available.</a></p>
<p>This release includes support for listening on IPv6 addresses. It also fixes issues with servers that have home directories mounted over NFS with <code>root_squash</code>, and with networks that use double-bind LDAP with restrictive permissions on user accounts.</p>
<p>Finally, this release changes the default SSL/TLS configuration in Shiny Server Pro to remove support for the obsolete and insecure TLSv1 protocol.</p>
<h3>Shiny Server 1.5.8.921</h3>
<ul>
<li>
<p>Upgrade to Node v8.11.3.</p>
</li>
<li>
<p>Added support for listening on IPv6 addresses.</p>
</li>
<li>
<p>X-Powered-By response header now reports “Shiny Server” instead of “Express”.</p>
</li>
<li>
<p>Resolve permissions issues when log directory is on an NFS mount with root<br>
squash. The <code>log_as_user</code> directive was intended to work for these situations,<br>
but would fail in common configurations. It should now work.</p>
</li>
<li>
<p><code>log_file_mode</code> no longer respects the process umask, and the default has been<br>
changed from <code>0660</code> to <code>0640</code>.</p>
</li>
<li>
<p>Exit code of shiny-server process was always 0, regardless of the reason the<br>
process exited. Now a non-zero exit code is used if the process was terminated<br>
by a signal, or an unhandled error crashed the process, or loading of the<br>
shiny-server.conf config file failed during startup.</p>
</li>
</ul>
<h3>Shiny Server Pro 1.5.8.985</h3>
<p>The above changes, plus:</p>
<ul>
<li>
<p>For LDAP double-bind authentication, use the base_bind account to iterate the<br>
user’s groups (rather than the user’s own LDAP account, which sometimes does<br>
not have permissions to see its own groups).</p>
</li>
<li>
<p>Added <code>auth_ignore_case</code> directive, which can be used to treat <code>required_user</code><br>
and <code>required_group</code> directives as case-insensitive. Disabled by default, as<br>
it’s only safe to use on systems that prevent the creation of users/groups<br>
whose names vary from existing users/groups only by case.</p>
</li>
<li>
<p>For SSL/TLS configurations, remove support for TLSv1 by default (SSLv2 and v3<br>
were already not supported). If a stricter or looser policy is desired, this<br>
can be achieved by adding <code>ssl_min_version</code> as a child directive of <code>ssl</code>;<br>
valid values for <code>ssl_min_version</code> are <code>tlsv1</code>, <code>tlsv11</code>, and <code>tlsv12</code>.</p>
</li>
</ul>
	<p>
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