Linux packages: removed apt-key usage to import gpg keys on Debian/Ubuntu. apt-key is deprecated since 2017 and will be removed after Debian 11 and Ubuntu 22.04. All distributions since at least 2013 support storing trusted keys in /etc/apt/trusted.gpg.d/ instead, so using it should be safe. A special workaround is added for Ubuntu 16.04 shipping gnupg 2.1, which is not compatible with the CLI invocation we use.

<?xml version="1.0" encoding="utf-8"?>
<!--
  Copyright (C) Igor Sysoev
  Copyright (C) Nginx, Inc.
  -->

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">

<xsl:param select="'development'" name="VERSION"/>

<xsl:output method="text"/>

<xsl:template match="/versions"> <xsl:apply-templates select="download[@tag=$VERSION][1]/item[1]/@ver"/> </xsl:template>

</xsl:stylesheet>