diff --git a/doc/gf-developers.html b/doc/gf-developers.html
index 7062db919..0355c4ca0 100644
--- a/doc/gf-developers.html
+++ b/doc/gf-developers.html
@@ -9,7 +9,7 @@
 <CENTER>
 <H1><a href="../"><IMG src="../doc/Logos/gf0.png"></a>GF Developers Guide</H1>
 <FONT SIZE="4"><I>Authors: Björn Bringert, Krasimir Angelov and Thomas Hallgren</I></FONT><BR>
-<FONT SIZE="4">Last update: 2012-09-11, 21:01</FONT>
+<FONT SIZE="4">Last update: 2013-01-30, 15:11</FONT>
 </CENTER>
 
 <P></P>
@@ -85,7 +85,7 @@ web sites, as described below.
 
 <P>
 GF is written in Haskell, so first of all you need
-the <I>Haskell Platform</I>, version 2010.2.0.0 or later. Downloads
+the <I>Haskell Platform</I>, version 2012.4.0.0. Downloads
 and installation instructions are available from here:
 </P>
 <P>
@@ -106,13 +106,13 @@ of the Haskell Platform	 was successful you should see a message like:
 </P>
 
 <PRE>
-  The Glorious Glasgow Haskell Compilation System, version 7.0.4
+  The Glorious Glasgow Haskell Compilation System, version 7.4.2
 </PRE>
 
 <P>
 Other required tools included in the Haskell Platform are 
-<A HREF="http://www.haskell.org/cabal/">Cabal</A>, 
-<A HREF="http://www.haskell.org/alex/">Alex</A> and
+<A HREF="http://www.haskell.org/cabal/">Cabal</A> 
+and
 <A HREF="http://www.haskell.org/happy/">Happy</A>.
 </P>
 
diff --git a/doc/gf-developers.t2t b/doc/gf-developers.t2t
index 9f87fa946..dc95af1d4 100644
--- a/doc/gf-developers.t2t
+++ b/doc/gf-developers.t2t
@@ -40,7 +40,7 @@ web sites, as described below.
 === The Haskell Platform ===
 
 GF is written in Haskell, so first of all you need
-the //Haskell Platform//, version 2010.2.0.0 or later. Downloads
+the //Haskell Platform//, version 2012.4.0.0. Downloads
 and installation instructions are available from here:
 
     http://hackage.haskell.org/platform/
@@ -54,12 +54,13 @@ This command should show you which version of GHC you have. If the installation
 of the Haskell Platform	 was successful you should see a message like:
 
 ```
-The Glorious Glasgow Haskell Compilation System, version 7.0.4
+The Glorious Glasgow Haskell Compilation System, version 7.4.2
 ```
 
 Other required tools included in the Haskell Platform are 
-[Cabal http://www.haskell.org/cabal/], 
-[Alex http://www.haskell.org/alex/] and
+[Cabal http://www.haskell.org/cabal/] 
+%,[Alex http://www.haskell.org/alex/]
+and
 [Happy http://www.haskell.org/happy/].
 
 === Darcs ===