4 files changed, 74 insertions, 37 deletions
diff --git a/doc/dev/release-procedures.txt b/doc/dev/release-procedures.txt
deleted file mode 100644
index 1e95a9ee9aca..000000000000
--- a/doc/dev/release-procedures.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-To produce a `stable' release from the trunk:
-
--1. Update the release notes; make sure that the release date is
-    correct.
-
-0. Make sure that the trunk builds in the release supervisor.
-
-1. Branch the trunk, e.g., `svn cp .../trunk
-   .../branches/0.5-release'.
-
-2. Switch to the branch, e.g., `svn switch .../branches/0.5-release'.
-
-3. In `configure.ac', change `STABLE=0' into `STABLE=1' and commit.
-
-4. In the release supervisor, add a one-time job to build
-   `.../branches/0.5-release'.
-
-5. Make sure that the release succeeds.
-
-6. Move the branch to a tag, e.g., `svn mv .../branches/0.5-release
-   .../tags/0.5'.
-
-   Note that the branch should not be used for maintenance; it should
-   be deleted after the release has been created.  A maintenance
-   branch (e.g., `.../branches/0.5') should be created from the
-   original revision of the trunk (since maintenance releases should
-   also be tested first; hence, we cannot have `STABLE=1').  The same
-   procedure can then be followed to produce maintenance releases;
-   just substitute `.../branches/VERSION' for the trunk.
-
-7. Switch back to the trunk.
-
-8. Bump the version number in `configure.ac' (in AC_INIT).
diff --git a/doc/manual/builtins.xml b/doc/manual/builtins.xml
index 9f5f4438ce55..b75f58e21f1b 100644
--- a/doc/manual/builtins.xml
+++ b/doc/manual/builtins.xml
@@ -302,6 +302,18 @@ stdenv.mkDerivation {
   </varlistentry>
 
 
+  <varlistentry><term><function>builtins.hashString</function>
+  <replaceable>type</replaceable> <replaceable>s</replaceable></term>
+
+    <listitem><para>Return a base-16 representation of the
+    cryptographic hash of string <replaceable>s</replaceable>.  The
+    hash algorithm specified by <replaceable>type</replaceable> must
+    be one of <literal>"md5"</literal>, <literal>"sha1"</literal> or
+    <literal>"sha256"</literal>.</para></listitem>
+
+  </varlistentry>
+
+
   <varlistentry><term><function>builtins.head</function>
   <replaceable>list</replaceable></term>
 
diff --git a/doc/manual/opt-common.xml b/doc/manual/opt-common.xml
index 72971bd6a7d5..329345773dd8 100644
--- a/doc/manual/opt-common.xml
+++ b/doc/manual/opt-common.xml
@@ -343,10 +343,11 @@
 
 <varlistentry><term><option>-I</option> <replaceable>path</replaceable></term>
   
-  <listitem><para>Add a path to the Nix expression search path.  See
-  the <envar>NIX_PATH</envar> environment variable for details.  Paths
-  added through <option>-I</option> take precedence over
-  <envar>NIX_PATH</envar>.</para></listitem>
+  <listitem><para>Add a path to the Nix expression search path.  This
+  option may be given multiple times.  See the <envar>NIX_PATH</envar>
+  environment variable for information on the semantics of the Nix
+  search path.  Paths added through <option>-I</option> take
+  precedence over <envar>NIX_PATH</envar>.</para></listitem>
   
 </varlistentry>
 
diff --git a/doc/manual/release-notes.xml b/doc/manual/release-notes.xml
index e7e9bf3c5b43..a078be83d5ab 100644
--- a/doc/manual/release-notes.xml
+++ b/doc/manual/release-notes.xml
@@ -8,6 +8,63 @@
 
 <!--==================================================================-->
 
+<section xml:id="ssec-relnotes-1.5.1"><title>Release 1.5.1 (February 28, 2013)</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>
+
+
+<!--==================================================================-->
+
+<section xml:id="ssec-relnotes-1.5"><title>Release 1.5 (February 27, 2013)</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>
+
+
+<!--==================================================================-->
+
+<section xml:id="ssec-relnotes-1.4"><title>Release 1.4 (February 26, 2013)</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
+Nix store to be changed to 444 (read-only but world-readable) by
+creating hard links to those files (<link
+xlink:href="https://github.com/NixOS/nix/commit/5526a282b5b44e9296e61e07d7d2626a79141ac4">details</link>).</para>
+
+<para>There are also the following improvements:</para>
+
+<itemizedlist>
+
+  <listitem><para>New built-in function:
+  <function>builtins.hashString</function>.</para></listitem>
+
+  <listitem><para>Build logs are now stored in
+  <filename>/nix/var/log/nix/drvs/<replaceable>XX</replaceable>/</filename>,
+  where <replaceable>XX</replaceable> is the first two characters of
+  the derivation.  This is useful on machines that keep a lot of build
+  logs (such as Hydra servers).</para></listitem>
+
+  <listitem><para>The function <function>corepkgs/fetchurl</function>
+  can now make the downloaded file executable.  This will allow
+  getting rid of all bootstrap binaries in the Nixpkgs source
+  tree.</para></listitem>
+
+  <listitem><para>Language change: The expression <literal>"${./path}
+  ..."</literal> now evaluates to a string instead of a
+  path.</para></listitem>
+
+</itemizedlist>
+
+</section>
+
+
+<!--==================================================================-->
+
 <section xml:id="ssec-relnotes-1.3"><title>Release 1.3 (January 4, 2013)</title>
 
 <para>This is primarily a bug fix release.  When this version is first