diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -5,9 +5,14 @@
 ## Unreleased changes
 
 
+## 0.4.0.3
+
+-   Tooling and compilation with GHC 9.2.3.
+
+
 ## 0.4.0.2
 
--   Tooling updtes related to GHC 9.2.1.
+-   Tooling updates related to GHC 9.2.1.
 
 
 ## 0.4.0.1
diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright Dominik Schrempf (c) 2021
+Copyright 2021 Dominik Schrempf
 
 All rights reserved.
 
diff --git a/bench/Bench.hs b/bench/Bench.hs
--- a/bench/Bench.hs
+++ b/bench/Bench.hs
@@ -1,7 +1,7 @@
 -- |
 -- Module      :  Main
 -- Description :  Benchmark circular stacks
--- Copyright   :  (c) Dominik Schrempf, 2021
+-- Copyright   :  2021 Dominik Schrempf
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/circular.cabal b/circular.cabal
--- a/circular.cabal
+++ b/circular.cabal
@@ -1,72 +1,73 @@
-cabal-version:  3.0
-name:           circular
-version:        0.4.0.2
-synopsis:       Circular fixed-sized mutable vectors
-description:    Please see the README at <https://github.com/dschrempf/circular#readme>
-category:       Math, Data Structures
-homepage:       https://github.com/dschrempf/circular#readme
-bug-reports:    https://github.com/dschrempf/circular/issues
-author:         Dominik Schrempf
-maintainer:     dominik.schrempf@gmail.com
-copyright:      Dominik Schrempf (2021)
-license:        BSD-3-Clause
-license-file:   LICENSE
-build-type:     Simple
+cabal-version:      3.0
+name:               circular
+version:            0.4.0.3
+synopsis:           Circular fixed-sized mutable vectors
+description:
+  Please see the README at <https://github.com/dschrempf/circular#readme>
+
+category:           Math, Data Structures
+homepage:           https://github.com/dschrempf/circular#readme
+bug-reports:        https://github.com/dschrempf/circular/issues
+author:             Dominik Schrempf
+maintainer:         dominik.schrempf@gmail.com
+copyright:          2021 Dominik Schrempf
+license:            BSD-3-Clause
+license-file:       LICENSE
+build-type:         Simple
 extra-source-files:
-    README.md
-    ChangeLog.md
+  ChangeLog.md
+  README.md
 
 source-repository head
-  type: git
+  type:     git
   location: https://github.com/dschrempf/circular
 
 library
-  exposed-modules:
-      Data.Stack.Circular
-  other-modules:
-      Paths_circular
-  hs-source-dirs: src
-  ghc-options: -Wall -Wunused-packages
+  exposed-modules:  Data.Stack.Circular
+  other-modules:    Paths_circular
+  hs-source-dirs:   src
+  ghc-options:      -Wall -Wunused-packages
   build-depends:
-      aeson
-    , base >=4.7 && <5
+    , aeson
+    , base       >=4.7 && <5
     , primitive
     , vector
+
   default-language: Haskell2010
 
 test-suite circular-test
-  type: exitcode-stdio-1.0
-  main-is: Spec.hs
+  type:             exitcode-stdio-1.0
+  main-is:          Spec.hs
   other-modules:
-      Data.Stack.CircularSpec
-      Paths_circular
-  autogen-modules:
-      Paths_circular
-  hs-source-dirs: test
-  ghc-options: -Wall -Wunused-packages
+    Data.Stack.CircularSpec
+    Paths_circular
+
+  autogen-modules:  Paths_circular
+  hs-source-dirs:   test
+  ghc-options:      -Wall -Wunused-packages
   build-depends:
-      QuickCheck
     , aeson
-    , base >=4.7 && <5
+    , base                  >=4.7 && <5
     , circular
     , hspec
     , primitive
+    , QuickCheck
     , quickcheck-instances
     , vector
+
   default-language: Haskell2010
 
 benchmark circular-bench
-  type: exitcode-stdio-1.0
-  main-is: Bench.hs
-  other-modules:
-      Paths_circular
-  autogen-modules:
-      Paths_circular
-  hs-source-dirs: bench
-  ghc-options: -Wall -Wunused-packages
+  type:             exitcode-stdio-1.0
+  main-is:          Bench.hs
+  other-modules:    Paths_circular
+  autogen-modules:  Paths_circular
+  hs-source-dirs:   bench
+  ghc-options:      -Wall -Wunused-packages
   build-depends:
-      base >=4.7 && <5
+    , base       >=4.7 && <5
     , circular
     , criterion
     , vector
+
   default-language: Haskell2010
diff --git a/src/Data/Stack/Circular.hs b/src/Data/Stack/Circular.hs
--- a/src/Data/Stack/Circular.hs
+++ b/src/Data/Stack/Circular.hs
@@ -7,7 +7,7 @@
 -- |
 -- Module      :  Data.Stack.Circular
 -- Description :  Circular stacks of fixed size
--- Copyright   :  (c) 2021 Dominik Schrempf
+-- Copyright   :  2021 Dominik Schrempf
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
@@ -70,7 +70,7 @@
 -- O(n).
 replicate :: (VG.Vector v a, PrimMonad m) => Int -> a -> m (MStack v (PrimState m) a)
 replicate n x
-  | n <= 0 = error "empty: maximum size must be one or larger"
+  | n <= 0 = error "replicate: maximum size must be one or larger"
   | otherwise = do
       v <- VM.replicate n x
       return $ MStack v 0
@@ -126,8 +126,8 @@
 -- O(k).
 take :: (VG.Vector v a, PrimMonad m) => Int -> MStack v (PrimState m) a -> m (v a)
 take k (MStack v i)
-  | k < 0 = error "toVectorN: negative k"
-  | k > n = error "toVectorN: circular stack too small"
+  | k < 0 = error "take: negative k"
+  | k > n = error "take: circular stack too small"
   | k == 0 = return VG.empty
   -- We know now that k is in [1, n] and check if all k elements can be taken in
   -- one go.
diff --git a/test/Data/Stack/CircularSpec.hs b/test/Data/Stack/CircularSpec.hs
--- a/test/Data/Stack/CircularSpec.hs
+++ b/test/Data/Stack/CircularSpec.hs
@@ -5,7 +5,7 @@
 -- |
 --   Module      :  Data.Stack.CircularSpec
 --   Description :  Unit tests for Data.Stack.Circular
---   Copyright   :  (c) Dominik Schrempf, 2021
+--   Copyright   :  2021 Dominik Schrempf
 --   License     :  GPL-3.0-or-later
 --
 --   Maintainer  :  dominik.schrempf@gmail.com