diff --git a/.gitignore b/.gitignore
index b8ccd67..69787d9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@ haskell-platform-2010.2.0.0.tar.gz
 /haskell-platform-2011.2.0.1.tar.gz
 /haskell-platform-2011.4.0.0.tar.gz
 /haskell-platform-2012.2.0.0.tar.gz
+/haskell-platform-2012.4.0.0-rc2.tar.gz
diff --git a/haskell-platform.spec b/haskell-platform.spec
index c3ba4d2..a418e81 100644
--- a/haskell-platform.spec
+++ b/haskell-platform.spec
@@ -2,18 +2,18 @@
 # https://fedoraproject.org/wiki/Packaging:Haskell
 # https://fedoraproject.org/wiki/PackagingDrafts/Haskell
 
-%global ghc_compiler_version 7.4.1
-%global alex_version 3.0.1
+%global ghc_compiler_version 7.4.2
+%global alex_version 3.0.2
 %global cabal_install_version 0.14.0
-%global happy_version 1.18.9
+%global happy_version 1.18.10
 
 Name:           haskell-platform
-Version:        2012.2.0.0
+Version:        2012.4.0.0
 # Since library subpackages are versioned:
 # - release can only be reset if all library versions get bumped simultaneously
 #   (eg for a major release)
 # - minor release numbers should be incremented monotonically
-Release:        18%{?dist}
+Release:        19%{?dist}
 Summary:        Standard Haskell distribution
 
 Group:          Development/Tools
@@ -65,30 +65,38 @@ and tools.  It provides a good starting environment for Haskell development.
 
 %global haskell_platform_version %{version}
 
+# follows order of platform.packages
 %if %{defined ghclibdir}
-%ghc_lib_subpackage -c freeglut-devel%{?_isa} GLUT 2.1.2.1
-%ghc_lib_subpackage HTTP 4000.2.3
-%ghc_lib_subpackage HUnit 1.2.4.2
+%ghc_lib_subpackage HUnit 1.2.5.1
 %ghc_lib_subpackage -c mesa-libGL-devel%{?_isa},mesa-libGLU-devel%{?_isa} OpenGL 2.2.3.1
-%ghc_lib_subpackage QuickCheck 2.4.2
-%ghc_lib_subpackage cgi 3001.1.7.4
-%ghc_lib_subpackage fgl 5.4.2.4
-%ghc_lib_subpackage haskell-src 1.0.1.5
+%ghc_lib_subpackage -c freeglut-devel%{?_isa} GLUT 2.1.2.1
 %ghc_lib_subpackage html 1.0.1.2
-%ghc_lib_subpackage mtl 2.1.1
-%ghc_lib_subpackage network 2.3.0.13
-%ghc_lib_subpackage parallel 3.2.0.2
-%ghc_lib_subpackage parsec 3.1.2
+%ghc_lib_subpackage parallel 3.2.0.3
+%ghc_lib_subpackage primitive 0.5.0.1
 %ghc_lib_subpackage -l %BSDHaskellReport random 1.0.1.1
-%ghc_lib_subpackage regex-base 0.93.2
-%ghc_lib_subpackage regex-compat 0.95.1
-%ghc_lib_subpackage regex-posix 0.95.1
-%ghc_lib_subpackage stm 2.3
-%ghc_lib_subpackage syb 0.3.6.1
-%ghc_lib_subpackage text 0.11.2.0
+%ghc_lib_subpackage QuickCheck 2.5.1.1
+# alex
+%ghc_lib_subpackage split 0.2.1.1
+%ghc_lib_subpackage stm 2.4
+%ghc_lib_subpackage async 2.0.1.3
+%ghc_lib_subpackage syb 0.3.7
+%ghc_lib_subpackage haskell-src 1.0.1.5
+%ghc_lib_subpackage text 0.11.2.3
 %ghc_lib_subpackage transformers 0.3.0.0
+%ghc_lib_subpackage mtl 2.1.2
+%ghc_lib_subpackage fgl 5.4.2.4
+# happy
+%ghc_lib_subpackage parsec 3.1.3
+%ghc_lib_subpackage network 2.3.1.0
+%ghc_lib_subpackage HTTP 4000.2.5
+%ghc_lib_subpackage regex-base 0.93.2
+%ghc_lib_subpackage regex-posix 0.95.2
+%ghc_lib_subpackage regex-compat 0.95.1
+%ghc_lib_subpackage vector 0.10.0.1
 %ghc_lib_subpackage xhtml 3000.2.1
-%ghc_lib_subpackage -c zlib-devel%{?_isa} zlib 0.5.3.3
+%ghc_lib_subpackage cgi 3001.1.7.4
+%ghc_lib_subpackage -c zlib-devel%{?_isa} zlib 0.5.4.0
+# cabal-install
 %endif
 
 %package -n alex
@@ -320,6 +328,10 @@ done
 
 
 %changelog
+* Sat Oct 20 2012 Jens Petersen <petersen@redhat.com> - 2012.4.0.0-19
+- update to 2012.4.0.0 RC2
+- new subpackages: async, vector, and primitive (vector dep)
+
 * Mon Jul 23 2012 Jens Petersen <petersen@redhat.com> - 2012.2.0.0-18
 - also apply the alex fix-bang-pattern patch for s390 and s390x
 
diff --git a/sources b/sources
index f17ba01..6dceb2c 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-db09bc4279c0ef9e0beb5462b793413b  haskell-platform-2012.2.0.0.tar.gz
+f1b1e6c94dddcdfbb36accafe74bdc0f  haskell-platform-2012.4.0.0-rc2.tar.gz