diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,3 +3,7 @@
 ## 0.1.0.0 -- 2020-11-19
 
 * First version. Released on an unsuspecting world.
+
+## 0.1.1.0 -- 2020-11-19
+
+* First version revised A. Some code improvements.
diff --git a/Phonetic/Languages/Permutations.hs b/Phonetic/Languages/Permutations.hs
--- a/Phonetic/Languages/Permutations.hs
+++ b/Phonetic/Languages/Permutations.hs
@@ -7,8 +7,6 @@
 --
 -- Commonly used versions of the @phonetic-languages-common@ package functions.
 
-{-# LANGUAGE BangPatterns #-}
-
 module Phonetic.Languages.Permutations (
   universalSetG
   , genPermutations
@@ -17,7 +15,6 @@
 
 import qualified Data.Vector as VB
 import qualified Data.List as L (permutations)
-import qualified Data.Foldable as F
 import Data.SubG
 import Data.SubG.InstancesPlus ()
 import Data.Monoid
diff --git a/phonetic-languages-permutations.cabal b/phonetic-languages-permutations.cabal
--- a/phonetic-languages-permutations.cabal
+++ b/phonetic-languages-permutations.cabal
@@ -2,7 +2,7 @@
 -- For further documentation, see http://haskell.org/cabal/users-guide/
 
 name:                phonetic-languages-permutations
-version:             0.1.0.0
+version:             0.1.1.0
 synopsis:            Commonly used versions of the phonetic-languages-common package
 description:         Permutations-related to produce universal set of the task.
 homepage:            https://hackage.haskell.org/package/phonetic-languages-permutations
@@ -19,7 +19,7 @@
 library
   exposed-modules:     Phonetic.Languages.Permutations
   -- other-modules:
-  other-extensions:    BangPatterns
+  -- other-extensions:    
   build-depends:       base >=4.8 && <4.15, vector >=0.11 && <0.14, subG >=0.4.2 && <1, subG-instances >=0.1 && <1
   -- hs-source-dirs:
   default-language:    Haskell2010