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    <p>In Rudder 4.1.10 and 4.2.4, a bug in node architecture detection
      forced us to change the format of the value that was stored. <br>
    </p>
    <p>The bug is described here:
      <a class="moz-txt-link-freetext" href="https://www.rudder-project.org/redmine/issues/11918">https://www.rudder-project.org/redmine/issues/11918</a></p>
    <p>This change can be a breaking change if you used architecture
      attribute to define dynamique groups or in third party integration
      (API, etc).<br>
    </p>
    <p>So if you upgrade from a version of Rudder before 4.1.10 or 4.2.4
      to these versions or newer ones and that you use the value of
      architecture attribute of a node, please be careful to also update
      the call site. <br>
    </p>
    <p>Have a nice day, <br>
    </p>
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            <td colspan="2"><b><img alt=""
                  src="cid:part1.502EA615.3545E5B1@normation.com"
                  width="50" align="left" height="50" hspace="10"> <span
                  class="sig">François ARMAND</span></b><br>
              <span class="sig"><i>Co-founder & CTO</i></span><br>
              <span class="sig"><a class="redlink"
                  href="http://www.normation.com">Normation</a></span> </td>
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            <td colspan="2"><span class="sigsmall"><b>87 rue de Turbigo,
                  75003 Paris, France</b></span></td>
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            <td><span class="sigsmall">Telephone:</span></td>
            <td><span class="sigsmall">+33 (0)1 83 62 99 23</span></td>
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            <td><span class="sigsmall">Mobile:</span></td>
            <td><span class="sigsmall">+33 (0)6 63 37 60 55</span></td>
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