docs: Add EOL statements

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+End of life statements
+======================
+
+The currently supported release train of PowerDNS Authoritative Server is 4.x.
+
+PowerDNS Authoritative Server 3.4 is considered legacy and will only
+receive critical bug fixes and security fixes.
+
+PowerDNS Authoritative Server 3.3 will only receive security fixes.
+
+PowerDNS Authoritative Server 3.2, 3.1, 3.0 and 2.x are end of life.
+
+PowerDNS Authoritative Server 2.x
+---------------------------------
+
+21st of May 2015 (updated January 2017)
+
+PowerDNS Authoritative Server 2.9.22 was released in January 2009.
+Because of its immense and durable popularity, some patch releases have
+been provided, the last one of which (2.9.22.6) was made available in
+January 2012.
+
+The 2.9.22.x series contains a number of probable and actual violations
+of the DNS standards. In addition, some behaviours of 2.9.22.x are
+standards conforming but cause interoperability problems today. Finally,
+2.9.22.4 and earlier are impacted by :doc:`PowerDNS Security Advisory 2012-01
+<../security-advisories/powerdns-advisory-2012-01>`,
+which means PowerDNS can be used in a Denial of Service attack.
+
+Although we have long been telling users that we can no longer support
+the use of 2.x, and urging upgrading, with this statement we formally
+declare 2.x end of life.
+
+This means that any 2.x issues will not be addressed. This has been the
+case for a long time, but with this statement we make it formal.
+
+To upgrade to 3.x, please consult the `instructions on how to upgrade
+the database <https://doc.powerdns.com/3/authoritative/upgrading/#29x-to-30>`__.
+To upgrade from 3.x to 4.x, :doc:`follow these instructions <../upgrading>`.
+If you need help with upgrading, we provide `migration
+services <https://www.powerdns.com/support-services-consulting.html>`__
+to our supported users. If you are currently running 2.9.22 and need
+help to tide you over, we can also provide that as part of a `support
+agreement <https://www.powerdns.com/support-services-consulting.html>`__.
+
+But we urge everyone to move on to PowerDNS Authoritative Server 4.0 or
+later - it is a faster, more standards conforming and more powerful
+nameserver!

diff --git a/pdns/recursordist/docs/appendices/EOL.rst b/pdns/recursordist/docs/appendices/EOL.rst
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+End of life statements
+======================
+
+The currently supported release train of the PowerDNS Recursor is 4.x.
+
+PowerDNS Recursor 3.7 is considered legacy and will only receive
+critical bug fixes and security fixes.
+
+PowerDNS Recursor 3.6 will only receive security fixes.
+
+PowerDNS Recursor 3.5, 3.4, 3.3, 3.2, 3.1, 3.0 and 2.x are end of life.