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    <div class="moz-cite-prefix">On 06/04/2021 13:01, Charlie R via
      Pdns-users wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAC+6t7mYSg7aqtu+B=TxnBO7-mzBw6OzxQmV+7Rbv-T2GugP1Q@mail.gmail.com"><font
        face="arial, sans-serif">What other obvious things am I missing?
        What else should I be looking at / better understanding?</font></blockquote>
    <p>Check the <a moz-do-not-send="true"
        href="https://doc.powerdns.com/authoritative/upgrading.html">upgrade
        guides</a> and <a moz-do-not-send="true"
        href="https://doc.powerdns.com/authoritative/changelog/">changelogs</a>.<br>
    </p>
    <p>Most importantly, make sure you're not using the built-in
      recursor functionality in pdns-auth: it was removed in 4.1.0.  If
      you are, see <a moz-do-not-send="true"
        href="https://doc.powerdns.com/authoritative/guides/recursion.html">this
        guide</a>.<br>
    </p>
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