diff --git a/nixos/doc/manual/release-notes/rl-2105.xml b/nixos/doc/manual/release-notes/rl-2105.xml
index fa100290460e..12a9ae2f44ea 100644
--- a/nixos/doc/manual/release-notes/rl-2105.xml
+++ b/nixos/doc/manual/release-notes/rl-2105.xml
@@ -25,6 +25,7 @@
    </listitem>
    <listitem>
     <para>The default Linux kernel was updated to the 5.10 LTS series, coming from the 5.4 LTS series.</para>
+    <para>The <package>linux_latest</package> kernel was updated to the 5.12 series. It currently is not officially supported for use with the zfs filesystem. If you use zfs, you should use a different kernel version (either the LTS kernel, or track a specific one). </para>
    </listitem>
    <listitem>
     <para>GNOME desktop environment was upgraded to 40, see the release notes for <link xlink:href="https://help.gnome.org/misc/release-notes/40.0/">40.0</link> and <link xlink:href="https://help.gnome.org/misc/release-notes/3.38/">3.38</link>. The <code>gnome3</code> attribute set has been renamed to <code>gnome</code> and so have been the NixOS options.</para>