v0.21.0

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diff --git a/template/news/2024-03-0.21.0.html.j2 b/template/news/2024-03-0.21.0.html.j2
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+{% extends "common/news.j2" %}
+{% block body_content %}
+{% set newver = '0.21.0' %}
+{% set oldver = '0.20.0' %}
+<main id="maincontent">
+  <h1>GNUnet {{newver}} released</h1>
+<p>
+  We are pleased to announce the release of GNUnet {{newver}}.
+  <br/>
+  GNUnet is an alternative network stack for building secure, decentralized and
+  privacy-preserving distributed applications.
+  Our goal is to replace the old insecure Internet protocol stack.
+  Starting from an application for secure publication of files, it has grown to
+  include all kinds of basic protocol components and applications towards the
+  creation of a GNU internet.
+</p>
+<p>
+  This release marks a noteworthy milestone in that it includes a completely
+  new <a href="https://docs.gnunet.org/latest/developers/transport-ng/transport-ng.html">transport layer</a>.
+  It lays the groundwork for fixing some major design issues and may also
+  already alleviate a variety of issues seen in previous releases related to
+  connectivity.
+  This change also deprecates our testbed and ATS subsystem.
+</p>
+<p>
+  This is a new major release.
+  It breaks protocol compatibility with the 0.20.x versions.
+  Please be aware that Git master is thus henceforth (and has been for a
+  while) <b>INCOMPATIBLE</b> with
+  the 0.20.x GNUnet network, and interactions between old and new peers
+  will result in issues.
+  In terms of usability, users should be aware that there are still
+  <b>a number of known open issues</b> in particular with respect to ease
+  of use, but also some critical privacy issues especially for mobile users.
+  Also, the nascent network is tiny and thus unlikely to
+  provide good anonymity or extensive amounts of interesting information.
+  As a result, the {{newver}} release is still <b>only suitable for early adopters
+  with some reasonable pain tolerance</b>.
+</p>
+<h4>Download links</h4>
+<ul>
+  <li><a href="http://ftpmirror.gnu.org/gnunet/gnunet-{{newver}}.tar.gz">gnunet-{{newver}}.tar.gz</a> (<a href="http://ftpmirror.gnu.org/gnunet/gnunet-{{newver}}.tar.gz.sig">signature</a>)</li>
+  <li><a href="https://buildbot.gnunet.org/releases/gnunet-{{newver}}-meson.tar.gz">gnunet-{{newver}}-meson.tar.gz</a> (<a href="https://buildbot.gnunet.org/releases/gnunet-{{newver}}-meson.tar.gz.sig">signature</a>) <i>NEW: Test tarball made using the meson build system.</i></li>
+  <li><a href="http://ftpmirror.gnu.org/gnunet/gnunet-gtk-{{newver}}.tar.gz">gnunet-gtk-{{newver}}.tar.gz</a> (<a href="http://ftpmirror.gnu.org/gnunet/gnunet-gtk-{{newver}}.tar.gz.sig">signature</a>)</li>
+  <li><a href="http://ftpmirror.gnu.org/gnunet/gnunet-fuse-{{newver}}.tar.gz">gnunet-fuse-{{newver}}.tar.gz</a> (<a href="http://ftpmirror.gnu.org/gnunet/gnunet-fuse-{{newver}}.tar.gz.sig">signature</a>)</li>
+</ul>
+<p>
+  The GPG key used to sign is: <a href="https://www.gnunet.org/~schanzen/3D11063C10F98D14BD24D1470B0998EF86F59B6A">3D11063C10F98D14BD24D1470B0998EF86F59B6A</a>
+</p>
+<p>
+  Note that due to mirror synchronization, not all links might be functional
+  early after the release. For direct access try
+  <a href="http://ftp.gnu.org/gnu/gnunet/">http://ftp.gnu.org/gnu/gnunet/</a>
+</p>
+<h4>Changes</h4>
+<p>
+A detailed list of changes can be found in the <a href="https://git.gnunet.org/gnunet.git/log/?h=v{{newver}}">git log</a>, the <a href="https://git.gnunet.org/gnunet.git/tree/NEWS?h=v{{newver}}">NEWS</a> and
+the <a href="https://bugs.gnunet.org/changelog_page.php?version_id=417">bug tracker</a>.
+</p>
+<h4>Known Issues</h4>
+<ul>
+  <li>There are known major design issues in the CORE subsystems which will need to be addressed in the future to achieve acceptable usability, performance and security.</li>
+  <li>There are known moderate implementation limitations in CADET that negatively impact performance.</li>
+  <li>There are known moderate design issues in FS that also impact usability and performance.</li>
+  <li>There are minor implementation limitations in SET that create unnecessary attack surface for availability.</li>
+  <li>The RPS subsystem remains experimental.</li>
+</ul>
+<p>
+In addition to this list, you may also want to consult our bug tracker at <a href="https://bugs.gnunet.org/">bugs.gnunet.org</a> which lists about 190 more specific issues.
+</p>
+
+<h4>Thanks</h4>
+<p>
+This release was the work of many people. The following people contributed code and were thus easily identified:
+Christian Grothoff, t3sserakt, TheJackiMonster, Pedram Fardzadeh, dvn, Sebastian Nadler and Martin Schanzenbach.
+</p>
+{% endblock body_content %}
diff --git a/www.yml b/www.yml
index c1a3fa77..74abb84d 100644
--- a/www.yml
+++ b/www.yml
@@ -34,6 +34,9 @@ meetingnotes:
   2022: 2022-12-04
   2023: 2023-12-28
 newsposts:
+  - page: 2024-03-0.21.0.html
+    date: 2024-03-06
+    title: GNUnet 0.21.0
   - page: 2024-02-NGI-Webinar-GNS.html
     date: 2024-02-22
     title: "NGI Webinar: The GNU Name System and the road to publishing an RFC"