diff --git a/doc/manual/release-notes/rl-0.10.1.xml b/doc/manual/release-notes/rl-0.10.1.xml
index 05cd2f65435392da116c2a5ffeeaebe048a7fdcc..95829323d4fb623e9e2618e7902ca0881c6b4a69 100644
--- a/doc/manual/release-notes/rl-0.10.1.xml
+++ b/doc/manual/release-notes/rl-0.10.1.xml
@@ -4,10 +4,10 @@
       version="5.0"
       xml:id="ch-relnotes-0.10.1">
 
-<title>Release 0.10.1 (October 11, 2006)</title>
+<title>Release 0.10.1 (2006-10-11)</title>
 
 <para>This release fixes two somewhat obscure bugs that occur when
 evaluating Nix expressions that are stored inside the Nix store
 (<literal>NIX-67</literal>).  These do not affect most users.</para>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.10.xml b/doc/manual/release-notes/rl-0.10.xml
index 7815ae75b1b87f93b06e00ae7784d81146b7e322..9afec4de94dec2f0898cb119bff6fd478813bb7b 100644
--- a/doc/manual/release-notes/rl-0.10.xml
+++ b/doc/manual/release-notes/rl-0.10.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ch-relnotes-0.10">
 
-<title>Release 0.10 (October 6, 2006)</title>
+<title>Release 0.10 (2006-10-06)</title>
 
 <note><para>This version of Nix uses Berkeley DB 4.4 instead of 4.3.
 The database is upgraded automatically, but you should be careful not
@@ -320,4 +320,4 @@ irreversible.</para></warning>
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.11.xml b/doc/manual/release-notes/rl-0.11.xml
index 9c5d8b8beb4ba3a19d38934982e0d8b875cbbc12..7ad0ab5b71adbc8c7412c3ec16cb47d74c0e0458 100644
--- a/doc/manual/release-notes/rl-0.11.xml
+++ b/doc/manual/release-notes/rl-0.11.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-0.11">
 
-<title>Release 0.11 (December 31, 2007)</title>
+<title>Release 0.11 (2007-12-31)</title>
 
 <para>Nix 0.11 has many improvements over the previous stable release.
 The most important improvement is secure multi-user support.  It also
@@ -258,4 +258,4 @@ on Nix.  Here is an (incomplete) list:</para>
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.12.xml b/doc/manual/release-notes/rl-0.12.xml
index 1f04609b1654a9e380492b32568a1fc27eb10c56..fdba8c4d577fa31107eec5ae8be045aab56ad68e 100644
--- a/doc/manual/release-notes/rl-0.12.xml
+++ b/doc/manual/release-notes/rl-0.12.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-0.12">
 
-<title>Release 0.12 (November 20, 2008)</title>
+<title>Release 0.12 (2008-11-20)</title>
 
 <itemizedlist>
 
@@ -172,4 +172,4 @@ the following paths will be downloaded/copied (30.02 MiB):
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.13.xml b/doc/manual/release-notes/rl-0.13.xml
index 9cf144e4ea2397c8d7e6a2e47014ef5fdfd49474..cce2e4a26b05de113854bd5fefc4d91ce7a8ca47 100644
--- a/doc/manual/release-notes/rl-0.13.xml
+++ b/doc/manual/release-notes/rl-0.13.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-0.13">
 
-<title>Release 0.13 (November 5, 2009)</title>
+<title>Release 0.13 (2009-11-05)</title>
 
 <para>This is primarily a bug fix release.  It has some new
 features:</para>
@@ -103,4 +103,4 @@ features:</para>
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.14.xml b/doc/manual/release-notes/rl-0.14.xml
index a671db3b8588f2a4aac9b2cb3f7e9ed2914ee78f..e5fe9da78e7e45d7374abd42b4499997c4f144c7 100644
--- a/doc/manual/release-notes/rl-0.14.xml
+++ b/doc/manual/release-notes/rl-0.14.xml
@@ -2,7 +2,9 @@
       xmlns:xlink="http://www.w3.org/1999/xlink"
       xmlns:xi="http://www.w3.org/2001/XInclude"
       version="5.0"
-      xml:id="ssec-relnotes-0.14"><title>Release 0.14 (February 4, 2010)</title>
+      xml:id="ssec-relnotes-0.14">
+
+<title>Release 0.14 (2010-02-04)</title>
 
 <para>This release has the following improvements:</para>
 
@@ -41,4 +43,4 @@
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.15.xml b/doc/manual/release-notes/rl-0.15.xml
index b76f674ba12384bd37ff44e1722f5df581e4f477..9f58a8efc5d46c6b6314307e5bc7497bc6ab7105 100644
--- a/doc/manual/release-notes/rl-0.15.xml
+++ b/doc/manual/release-notes/rl-0.15.xml
@@ -4,11 +4,11 @@
       version="5.0"
       xml:id="ssec-relnotes-0.15">
 
-<title>Release 0.15 (March 17, 2010)</title>
+<title>Release 0.15 (2010-03-17)</title>
 
 <para>This is a bug-fix release.  Among other things, it fixes
 building on Mac OS X (Snow Leopard), and improves the contents of
 <filename>/etc/passwd</filename> and <filename>/etc/group</filename>
 in <literal>chroot</literal> builds.</para>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.16.xml b/doc/manual/release-notes/rl-0.16.xml
index 5254e5f9d6586ac0030c62d4141275ca3474c11f..af1edc0ebbe018eec7fbe59bc838b74a2185c960 100644
--- a/doc/manual/release-notes/rl-0.16.xml
+++ b/doc/manual/release-notes/rl-0.16.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-0.16">
 
-<title>Release 0.16 (August 17, 2010)</title>
+<title>Release 0.16 (2010-08-17)</title>
 
 <para>This release has the following improvements:</para>
 
@@ -52,4 +52,4 @@
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.6.xml b/doc/manual/release-notes/rl-0.6.xml
index 83d9dc897c423a15e7f0e44a6c98823bfdbb4e5e..6dc6521d3c2ae251bfccd7dba07e2ad9f72fad7a 100644
--- a/doc/manual/release-notes/rl-0.6.xml
+++ b/doc/manual/release-notes/rl-0.6.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ch-relnotes-0.6">
 
-<title>Release 0.6 (November 14, 2004)</title>
+<title>Release 0.6 (2004-11-14)</title>
 
 <itemizedlist>
 
@@ -119,4 +119,4 @@
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.7.xml b/doc/manual/release-notes/rl-0.7.xml
index fc8997fc1e363581cd228ad9ba7dea28b3ca18a1..6f95db4367dbefa7b30f067262e063fe1ed65115 100644
--- a/doc/manual/release-notes/rl-0.7.xml
+++ b/doc/manual/release-notes/rl-0.7.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ch-relnotes-0.7">
 
-<title>Release 0.7 (January 12, 2005)</title>
+<title>Release 0.7 (2005-01-12)</title>
 
 <itemizedlist>
 
@@ -32,4 +32,4 @@
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.8.1.xml b/doc/manual/release-notes/rl-0.8.1.xml
index b4a855b553a5b72ec9eb2b1ff2809d723658e0d7..f7ffca0f8d59fbb88ddb6e966e748cdb739937a6 100644
--- a/doc/manual/release-notes/rl-0.8.1.xml
+++ b/doc/manual/release-notes/rl-0.8.1.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ch-relnotes-0.8.1">
 
-<title>Release 0.8.1 (April 13, 2005)</title>
+<title>Release 0.8.1 (2005-04-13)</title>
 
 <para>This is a bug fix release.</para>
 
@@ -18,4 +18,4 @@
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.8.xml b/doc/manual/release-notes/rl-0.8.xml
index 970abb6e85e06306774137bda2a7c7e0463912fe..784b26c6b7d3b48d01bd87d8c354e3c5e60df19c 100644
--- a/doc/manual/release-notes/rl-0.8.xml
+++ b/doc/manual/release-notes/rl-0.8.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ch-relnotes-0.8">
 
-<title>Release 0.8 (April 11, 2005)</title>
+<title>Release 0.8 (2005-04-11)</title>
 
 <para>NOTE: the hashing scheme in Nix 0.8 changed (as detailed below).
 As a result, <command>nix-pull</command> manifests and channels built
@@ -243,4 +243,4 @@ $ nix-env -f .../i686-linux.nix -i -E 'x: x.firefoxWrapper'</screen>
 
 </para>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.9.1.xml b/doc/manual/release-notes/rl-0.9.1.xml
index a7d093aa8e022b965e3160e2840423ca02d992c9..85d11f41687741e767c076598c1b4d6830a3b333 100644
--- a/doc/manual/release-notes/rl-0.9.1.xml
+++ b/doc/manual/release-notes/rl-0.9.1.xml
@@ -4,10 +4,10 @@
       version="5.0"
       xml:id="ch-relnotes-0.9.1">
 
-<title>Release 0.9.1 (September 20, 2005)</title>
+<title>Release 0.9.1 (2005-09-20)</title>
 
 <para>This bug fix release addresses a problem with the ATerm library
 when the <option>--with-aterm</option> flag in
 <command>configure</command> was <emphasis>not</emphasis> used.</para>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.9.2.xml b/doc/manual/release-notes/rl-0.9.2.xml
index 33141c8e94ff797b3941ae5ee284f7b62828a00c..cb705e98ac25c1f9b0a5e28d93507d8edc423683 100644
--- a/doc/manual/release-notes/rl-0.9.2.xml
+++ b/doc/manual/release-notes/rl-0.9.2.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ch-relnotes-0.9.2">
 
-<title>Release 0.9.2 (September 21, 2005)</title>
+<title>Release 0.9.2 (2005-09-21)</title>
 
 <para>This bug fix release fixes two problems on Mac OS X:
 
@@ -25,4 +25,4 @@
 
 </para>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-0.9.xml b/doc/manual/release-notes/rl-0.9.xml
index 07dd87cd9f61b476fdcb275ed4b676cd9af020be..fd1e633f78ea50834289ec4815d619553fd5f326 100644
--- a/doc/manual/release-notes/rl-0.9.xml
+++ b/doc/manual/release-notes/rl-0.9.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ch-relnotes-0.9">
 
-<title>Release 0.9 (September 16, 2005)</title>
+<title>Release 0.9 (2005-09-16)</title>
 
 <para>NOTE: this version of Nix uses Berkeley DB 4.3 instead of 4.2.
 The database is upgraded automatically, but you should be careful not
@@ -95,4 +95,4 @@ svnService = derivation {
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-1.0.xml b/doc/manual/release-notes/rl-1.0.xml
index d000014eb311f544b0dac5735b0c04f6061e6830..ff11168d093266459b3bfabc582bb59d483700ca 100644
--- a/doc/manual/release-notes/rl-1.0.xml
+++ b/doc/manual/release-notes/rl-1.0.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-1.0">
 
-<title>Release 1.0 (May 11, 2012)</title>
+<title>Release 1.0 (2012-05-11)</title>
 
 <para>There have been numerous improvements and bug fixes since the
 previous release.  Here are the most significant:</para>
@@ -116,4 +116,4 @@ previous release.  Here are the most significant:</para>
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-1.1.xml b/doc/manual/release-notes/rl-1.1.xml
index 7ee076f193e9ce8403a1ad0645ef97c36c53baa4..2f26e7a24273201ef90392265606f722a3de2b9b 100644
--- a/doc/manual/release-notes/rl-1.1.xml
+++ b/doc/manual/release-notes/rl-1.1.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-1.1">
 
-<title>Release 1.1 (July 18, 2012)</title>
+<title>Release 1.1 (2012-07-18)</title>
 
 <para>This release has the following improvements:</para>
 
@@ -97,4 +97,4 @@
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-1.10.xml b/doc/manual/release-notes/rl-1.10.xml
index 7a90087487e9cf020a1a12046d6b73f888decf56..689a954663434dc52c07f6e379af29494a09318d 100644
--- a/doc/manual/release-notes/rl-1.10.xml
+++ b/doc/manual/release-notes/rl-1.10.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-1.10">
 
-<title>Release 1.10 (September 3, 2015)</title>
+<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>
diff --git a/doc/manual/release-notes/rl-1.2.xml b/doc/manual/release-notes/rl-1.2.xml
index 6c05444ff76e714dee2716e0e6a82ecb83645368..dc272c420ddbe168af64ad263f4facbb7ec66d5e 100644
--- a/doc/manual/release-notes/rl-1.2.xml
+++ b/doc/manual/release-notes/rl-1.2.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-1.2">
 
-<title>Release 1.2 (December 6, 2012)</title>
+<title>Release 1.2 (2012-12-06)</title>
 
 <para>This release has the following improvements and changes:</para>
 
@@ -154,4 +154,4 @@ $ mount -o remount,ro,bind /nix/store
 <para>This release has contributions from Eelco Dolstra, Florian
 Friesdorf, Mats Erik Andersson and Shea Levy.</para>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-1.3.xml b/doc/manual/release-notes/rl-1.3.xml
index 04169ed01b82d950c7fd49d9719b39e3fd9607e8..e2009ee3ba4b9832c6ce6c89109561dfe30a0031 100644
--- a/doc/manual/release-notes/rl-1.3.xml
+++ b/doc/manual/release-notes/rl-1.3.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-1.3">
 
-<title>Release 1.3 (January 4, 2013)</title>
+<title>Release 1.3 (2013-01-04)</title>
 
 <para>This is primarily a bug fix release.  When this version is first
 run on Linux, it removes any immutable bits from the Nix store and
@@ -16,4 +16,4 @@ efficient.)</para>
 <para>This release has contributions from Eelco Dolstra and Stuart
 Pernsteiner.</para>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-1.4.xml b/doc/manual/release-notes/rl-1.4.xml
index d48e43f21c1b99fb93c43d7ab740fa2c661bace1..aefb22f2b934c4b405117a6984c005c11cd16f3b 100644
--- a/doc/manual/release-notes/rl-1.4.xml
+++ b/doc/manual/release-notes/rl-1.4.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-1.4">
 
-<title>Release 1.4 (February 26, 2013)</title>
+<title>Release 1.4 (2013-02-26)</title>
 
 <para>This release fixes a security bug in multi-user operation.  It
 was possible for derivations to cause the mode of files outside of the
@@ -36,4 +36,4 @@ xlink:href="https://github.com/NixOS/nix/commit/5526a282b5b44e9296e61e07d7d2626a
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-1.5.1.xml b/doc/manual/release-notes/rl-1.5.1.xml
index 046960313ffde26e70d9f1cf2d5a06297c442998..035c8dbcbb161a12b6f5b457c487fff5986008dc 100644
--- a/doc/manual/release-notes/rl-1.5.1.xml
+++ b/doc/manual/release-notes/rl-1.5.1.xml
@@ -4,9 +4,9 @@
       version="5.0"
       xml:id="ssec-relnotes-1.5.1">
 
-<title>Release 1.5.1 (February 28, 2013)</title>
+<title>Release 1.5.1 (2013-02-28)</title>
 
 <para>The bug fix to the bug fix had a bug itself, of course.  But
 this time it will work for sure!</para>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-1.5.2.xml b/doc/manual/release-notes/rl-1.5.2.xml
index d2f53bbdc0bde15535e9396c96878bc23e4dc494..7e81dd2432843c6023a570c9513a2605551fafdd 100644
--- a/doc/manual/release-notes/rl-1.5.2.xml
+++ b/doc/manual/release-notes/rl-1.5.2.xml
@@ -4,9 +4,9 @@
       version="5.0"
       xml:id="ssec-relnotes-1.5.2">
 
-<title>Release 1.5.2 (May 13, 2013)</title>
+<title>Release 1.5.2 (2013-05-13)</title>
 
 <para>This is primarily a bug fix release.  It has contributions from
 Eelco Dolstra, Lluís Batlle i Rossell and Shea Levy.</para>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-1.5.xml b/doc/manual/release-notes/rl-1.5.xml
index 84e0e902494601ca9ff389006ce8d35075920d7d..8e279d7693e0016f3619b599557eb68f4ceeb915 100644
--- a/doc/manual/release-notes/rl-1.5.xml
+++ b/doc/manual/release-notes/rl-1.5.xml
@@ -4,9 +4,9 @@
       version="5.0"
       xml:id="ssec-relnotes-1.5">
 
-<title>Release 1.5 (February 27, 2013)</title>
+<title>Release 1.5 (2013-02-27)</title>
 
 <para>This is a brown paper bag release to fix a regression introduced
 by the hard link security fix in 1.4.</para>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-1.6.1.xml b/doc/manual/release-notes/rl-1.6.1.xml
index 1ca4dfebacdcb140ab25b6b263384238a0b5bae5..9ecc52734737aff206e25deeed12e4210c68126c 100644
--- a/doc/manual/release-notes/rl-1.6.1.xml
+++ b/doc/manual/release-notes/rl-1.6.1.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-1.6.1">
 
-<title>Release 1.6.1 (October 28, 2013)</title>
+<title>Release 1.6.1 (2013-10-28)</title>
 
 <para>This is primarily a bug fix release.  Changes of interest
 are:</para>
@@ -66,4 +66,4 @@ are:</para>
 
 </itemizedlist>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-1.6.xml b/doc/manual/release-notes/rl-1.6.xml
index a3d61faf2b73641f8ad98149769a2718b38b8550..5805634209499832e5e3da4bd0da67fc6d5ca7f2 100644
--- a/doc/manual/release-notes/rl-1.6.xml
+++ b/doc/manual/release-notes/rl-1.6.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-1.6.0">
 
-<title>Release 1.6 (September 10, 2013)</title>
+<title>Release 1.6 (2013-09-10)</title>
 
 <para>In addition to the usual bug fixes, this release has several new
 features:</para>
@@ -124,4 +124,4 @@ in pkgs.bar
 Florian Friesdorf, Gergely Risko, Ivan Kozik, Ludovic Courtès and Shea
 Levy.</para>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-1.7.xml b/doc/manual/release-notes/rl-1.7.xml
index a9863b99cba007e291fcba414d3821e388197588..44ecaa78da5f1c018ed5a48a049db1d3869091df 100644
--- a/doc/manual/release-notes/rl-1.7.xml
+++ b/doc/manual/release-notes/rl-1.7.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-1.7">
 
-<title>Release 1.7 (April 11, 2014)</title>
+<title>Release 1.7 (2014-04-11)</title>
 
 <para>In addition to the usual bug fixes, this release has the
 following new features:</para>
@@ -260,4 +260,4 @@ error: attribute `nixUnstabl' missing, at /etc/nixos/configurations/misc/eelco/m
 Eelco Dolstra, Ian-Woo Kim, Ludovic Courtès, Maxim Ivanov, Petr
 Rockai, Ricardo M. Correia and Shea Levy.</para>
 
-</section>
\ No newline at end of file
+</section>
diff --git a/doc/manual/release-notes/rl-1.8.xml b/doc/manual/release-notes/rl-1.8.xml
index b7acc1773baad3b97e8fac646f1758d170ca9537..48caac2c6b6079f78ea49d3307e63c809a281f4d 100644
--- a/doc/manual/release-notes/rl-1.8.xml
+++ b/doc/manual/release-notes/rl-1.8.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-1.8">
 
-<title>Release 1.8 (December 14, 2014)</title>
+<title>Release 1.8 (2014-12-14)</title>
 
 <itemizedlist>
 
diff --git a/doc/manual/release-notes/rl-1.9.xml b/doc/manual/release-notes/rl-1.9.xml
index e0c79e751ed7378478b4428d0c27df5acf75adc0..c8406bd2077c956251ee206d2bf481696194d071 100644
--- a/doc/manual/release-notes/rl-1.9.xml
+++ b/doc/manual/release-notes/rl-1.9.xml
@@ -4,7 +4,7 @@
       version="5.0"
       xml:id="ssec-relnotes-1.9">
 
-<title>Release 1.9 (June 12, 2015)</title>
+<title>Release 1.9 (2015-06-12)</title>
 
 <para>In addition to the usual bug fixes, this release has the
 following new features:</para>