diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for error
 
+## 1.0.0.0 -- 2022-10-09
+
+* No changes, just signify that the library is stable now.
+
 ## 0.3.0.0 -- 2022-02-16
 
 * Add `IsString` instance for `Error`.
diff --git a/error.cabal b/error.cabal
--- a/error.cabal
+++ b/error.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.4
 name:               error
-version:            0.3.0.0
+version:            1.0.0.0
 
 synopsis: The canonical error type
 
@@ -18,7 +18,7 @@
 
 author: Profpatsch
 maintainer: Profpatsch <mail@profpatsch.de>
-copyright: 2021 Profpatsch
+copyright: 2021-2022 Profpatsch
 
 extra-source-files:
     CHANGELOG.md
diff --git a/src/Data/Error.hs b/src/Data/Error.hs
--- a/src/Data/Error.hs
+++ b/src/Data/Error.hs
@@ -5,6 +5,15 @@
 {-# LANGUAGE ExplicitForAll #-}
 {-# LANGUAGE AllowAmbiguousTypes #-}
 {-# LANGUAGE LambdaCase #-}
+--------------------------------------------------------------------------------
+-- |
+-- Module      :  Data.Error
+-- Copyright   :  (C) 2021-2022 Profpatsch
+-- License     :  MIT
+-- Maintainer  :  Profpatsch <mail@profpatsch.de>
+-- Stability   :  stable
+-- Portability :  portable
+--------------------------------------------------------------------------------
 module Data.Error
   ( Error,
     -- * Error creation
@@ -182,7 +191,7 @@
       )
   Right a -> a
 
--- | This Exception is not exported so that it’s impossible to catch and handle via 'Typeable'.
+-- | This Exception is not exported so that it’s impossible to catch and handle via 'Data.Typeable.Typeable'.
 newtype ErrorException = ErrorException Error
 
 -- | Show the pretty printed string without quotes.