diff --git a/CHANGES b/CHANGES
--- a/CHANGES
+++ b/CHANGES
@@ -45,3 +45,6 @@
 
 0.1.2.7:
 		changed import from Numeric.Container to Numeric.LinearAlgebra in Histogram.hs (strange)
+
+0.1.2.8:
+		changed base to >= 4
diff --git a/hmatrix-gsl-stats.cabal b/hmatrix-gsl-stats.cabal
--- a/hmatrix-gsl-stats.cabal
+++ b/hmatrix-gsl-stats.cabal
@@ -1,8 +1,8 @@
 Name:               hmatrix-gsl-stats
-Version:            0.1.2.7
+Version:            0.1.2.9
 License:            GPL
 License-file:       LICENSE
-Copyright:          (c) A.V.H. McPhail 2010
+Copyright:          (c) A.V.H. McPhail 2010, 2011
 Author:             Vivian McPhail
 Maintainer:         haskell.vivian.mcphail <at> gmail <dot> com
 Stability:          provisional
@@ -18,9 +18,9 @@
      When hmatrix is installed with -fvector, the vector type is Data.Vector.Storable
      from the vector package.
 Category:           Math, Statistics, FFI
-tested-with:        GHC ==6.12.1
+tested-with:        GHC ==7.0.1
 
-cabal-version:      >=1.6
+cabal-version:      >=1.8
 
 build-type:         Custom
 
@@ -33,7 +33,7 @@
 
 library
 
-    Build-Depends:      base >= 3 && < 5, binary,
+    Build-Depends:      base >= 4 && < 5, binary,
                         storable-complex,
                         hmatrix >= 0.10.0.0
 			
diff --git a/lib/Numeric/GSL/Distribution/Common.hs b/lib/Numeric/GSL/Distribution/Common.hs
--- a/lib/Numeric/GSL/Distribution/Common.hs
+++ b/lib/Numeric/GSL/Distribution/Common.hs
@@ -1,4 +1,3 @@
-{-# OPTIONS_GHC -fglasgow-exts #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Numeric.GSL.Distribution.Common
diff --git a/lib/Numeric/GSL/Distribution/Continuous.hs b/lib/Numeric/GSL/Distribution/Continuous.hs
--- a/lib/Numeric/GSL/Distribution/Continuous.hs
+++ b/lib/Numeric/GSL/Distribution/Continuous.hs
@@ -1,4 +1,3 @@
-{-# OPTIONS_GHC -fglasgow-exts #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Numeric.GSL.Distribution.Continuous
diff --git a/lib/Numeric/GSL/Distribution/Discrete.hs b/lib/Numeric/GSL/Distribution/Discrete.hs
--- a/lib/Numeric/GSL/Distribution/Discrete.hs
+++ b/lib/Numeric/GSL/Distribution/Discrete.hs
@@ -1,4 +1,3 @@
-{-# OPTIONS_GHC -fglasgow-exts #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Numeric.GSL.Distribution.Discrete
diff --git a/lib/Numeric/GSL/Fitting/Linear.hs b/lib/Numeric/GSL/Fitting/Linear.hs
--- a/lib/Numeric/GSL/Fitting/Linear.hs
+++ b/lib/Numeric/GSL/Fitting/Linear.hs
@@ -1,4 +1,3 @@
-{-# OPTIONS_GHC -fglasgow-exts #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Numeric.GSL.Fitting.Linear
diff --git a/lib/Numeric/GSL/Histogram.hs b/lib/Numeric/GSL/Histogram.hs
--- a/lib/Numeric/GSL/Histogram.hs
+++ b/lib/Numeric/GSL/Histogram.hs
@@ -1,4 +1,5 @@
-{-# OPTIONS_GHC -fglasgow-exts #-}
+{-# LANGUAGE EmptyDataDecls,
+             FlexibleInstances #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Numeric.GSL.Histogram
diff --git a/lib/Numeric/GSL/Histogram2D.hs b/lib/Numeric/GSL/Histogram2D.hs
--- a/lib/Numeric/GSL/Histogram2D.hs
+++ b/lib/Numeric/GSL/Histogram2D.hs
@@ -1,4 +1,5 @@
-{-# OPTIONS_GHC -fglasgow-exts #-}
+{-# LANGUAGE EmptyDataDecls,
+             FlexibleInstances #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Numeric.GSL.Histogram2D
diff --git a/lib/Numeric/GSL/Permutation.hs b/lib/Numeric/GSL/Permutation.hs
--- a/lib/Numeric/GSL/Permutation.hs
+++ b/lib/Numeric/GSL/Permutation.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS_GHC -fglasgow-exts #-}
+{-# LANGUAGE EmptyDataDecls #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Numeric.GSL.Permutation
diff --git a/lib/Numeric/GSL/Sort.hs b/lib/Numeric/GSL/Sort.hs
--- a/lib/Numeric/GSL/Sort.hs
+++ b/lib/Numeric/GSL/Sort.hs
@@ -1,4 +1,3 @@
-{-# OPTIONS_GHC -fglasgow-exts #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Numeric.GSL.Sort
diff --git a/lib/Numeric/GSL/Statistics.hs b/lib/Numeric/GSL/Statistics.hs
--- a/lib/Numeric/GSL/Statistics.hs
+++ b/lib/Numeric/GSL/Statistics.hs
@@ -1,4 +1,3 @@
-{-# OPTIONS_GHC -fglasgow-exts #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Numeric.GSL.Statistics