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diff --git a/third_party/nix/doc/manual/release-notes/rl-1.10.xml b/third_party/nix/doc/manual/release-notes/rl-1.10.xml
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+<section xmlns="http://docbook.org/ns/docbook"
+      xmlns:xlink="http://www.w3.org/1999/xlink"
+      xmlns:xi="http://www.w3.org/2001/XInclude"
+      version="5.0"
+      xml:id="ssec-relnotes-1.10">
+
+<title>Release 1.10 (2015-09-03)</title>
+
+<para>This is primarily a bug fix release. It also has a number of new
+features:</para>
+
+<itemizedlist>
+
+  <listitem>
+    <para>A number of builtin functions have been added to reduce
+    Nixpkgs/NixOS evaluation time and memory consumption:
+    <function>all</function>,
+    <function>any</function>,
+    <function>concatStringsSep</function>,
+    <function>foldl’</function>,
+    <function>genList</function>,
+    <function>replaceStrings</function>,
+    <function>sort</function>.
+    </para>
+  </listitem>
+
+  <listitem>
+    <para>The garbage collector is more robust when the disk is full.</para>
+  </listitem>
+
+  <listitem>
+    <para>Nix supports a new API for building derivations that doesn’t
+    require a <literal>.drv</literal> file to be present on disk; it
+    only requires an in-memory representation of the derivation. This
+    is used by the Hydra continuous build system to make remote builds
+    more efficient.</para>
+  </listitem>
+
+  <listitem>
+    <para>The function <literal>&lt;nix/fetchurl.nix></literal> now
+    uses a <emphasis>builtin</emphasis> builder (i.e. it doesn’t
+    require starting an external process; the download is performed by
+    Nix itself). This ensures that derivation paths don’t change when
+    Nix is upgraded, and obviates the need for ugly hacks to support
+    chroot execution.</para>
+  </listitem>
+
+  <listitem>
+    <para><option>--version -v</option> now prints some configuration
+    information, in particular what compile-time optional features are
+    enabled, and the paths of various directories.</para>
+  </listitem>
+
+  <listitem>
+    <para>Build users have their supplementary groups set correctly.</para>
+  </listitem>
+
+</itemizedlist>
+
+<para>This release has contributions from Eelco Dolstra, Guillaume
+Maudoux, Iwan Aucamp, Jaka Hudoklin, Kirill Elagin, Ludovic Courtès,
+Manolis Ragkousis, Nicolas B. Pierron and Shea Levy.</para>
+
+</section>