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-rw-r--r--nixos/doc/manual/release-notes/rl-unstable.xml14
1 files changed, 14 insertions, 0 deletions
diff --git a/nixos/doc/manual/release-notes/rl-unstable.xml b/nixos/doc/manual/release-notes/rl-unstable.xml
index 34ffe1d6d32..cdbd074e782 100644
--- a/nixos/doc/manual/release-notes/rl-unstable.xml
+++ b/nixos/doc/manual/release-notes/rl-unstable.xml
@@ -35,6 +35,20 @@ and old <literal>steam</literal> package -- to <literal>steamOriginal</literal>.
 was accordingly renamed to <literal>bomi</literal>
 </para></listitem>
 
+<listitem>
+    <para>
+        The default <literal>NIX_PATH</literal> for NixOS now includes
+        <literal>/nix/var/nix/profiles/per-user/root/channels</literal>, so it's
+        easy to add custom channels.
+    </para>
+    <para>
+        Moreover, whenever a <command>nixos-rebuild &lt;action&gt;
+        --upgrade</command> is issued, every channel that includes a file
+        called <filename>.update-on-nixos-rebuild</filename> will be upgraded
+        alongside of the <literal>nixos</literal> channel.
+    </para>
+</listitem>
+
 </itemizedlist>
 </para>