diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,14 +1,20 @@
+2021-05-07
+        * Version bump (3.3). (#217)
+        * Remove unused type. (#110)
+        * Deprecate funArg. (#109)
+        * Update contact details in error message. (#108)
+
 2021-03-07
-        * Version bump (3.2.1). (#20)
-        * Completed the documentation. (#14)
+        * Version bump (3.2.1). (#106)
+        * Completed the documentation. (#112)
 
 2020-05-07
         * Version bump (3.2).
-        * Fixed the reverse order of triggers (#11).
+        * Fixed the reverse order of triggers (#114).
         * Update description, bug-reports, changelog fields in cabal file
-          (#8).
-        * Bump ghc-prim version bounds (#12).
+          (#116).
+        * Bump ghc-prim version bounds (#122).
 
 2019-11-22 Ivan Perez <ivan.perez@nianet.org>
         * Version bump (3.1).
-        * Remove ExternFun (#6).
+        * Remove ExternFun (#118).
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[![Build Status](https://travis-ci.org/Copilot-Language/copilot-language.svg?branch=master)](https://travis-ci.org/Copilot-Language/copilot-core)
+[![Build Status](https://travis-ci.org/Copilot-Language/copilot.svg?branch=master)](https://travis-ci.org/Copilot-Language/copilot-core)
 
 # Copilot: a stream DSL
 Copilot-language contains the actual embedded domain specific language that
@@ -34,4 +34,4 @@
 
 ## License
 Copilot is distributed under the BSD-3-Clause license, which can be found
-[here](https://raw.githubusercontent.com/Copilot-Language/copilot-language/master/LICENSE).
+[here](https://raw.githubusercontent.com/Copilot-Language/copilot/master/LICENSE).
diff --git a/copilot-language.cabal b/copilot-language.cabal
--- a/copilot-language.cabal
+++ b/copilot-language.cabal
@@ -1,6 +1,6 @@
 cabal-version:       >=1.10
 name:                copilot-language
-version:             3.2.1
+version:             3.3
 synopsis:            A Haskell-embedded DSL for monitoring hard real-time
                      distributed systems.
 description:
@@ -19,7 +19,7 @@
                      Sebastian Niller, Nis Nordby Wegmann
 maintainer:          Frank Dedden <dev@dedden.net>
 homepage:            https://copilot-language.github.io
-bug-reports:         https://github.com/Copilot-Language/copilot-language/issues
+bug-reports:         https://github.com/Copilot-Language/copilot/issues
 stability:           Experimental
 category:            Language, Embedded
 build-type:          Simple
@@ -27,7 +27,7 @@
 
 source-repository head
     type:       git
-    location:   https://github.com/Copilot-Language/copilot-language.git
+    location:   https://github.com/Copilot-Language/copilot.git
 
 library
   default-language: Haskell2010
@@ -40,8 +40,8 @@
                , mtl             >= 2.0 && < 3
                , ghc-prim        >= 0.3 && < 0.7
 
-               , copilot-core    >= 3.2.1 && < 3.3
-               , copilot-theorem >= 3.2.1 && < 3.3
+               , copilot-core    >= 3.3 && < 3.4
+               , copilot-theorem >= 3.3 && < 3.4
 
   exposed-modules: Copilot
                  , Copilot.Language
diff --git a/src/Copilot/Language/Error.hs b/src/Copilot/Language/Error.hs
--- a/src/Copilot/Language/Error.hs
+++ b/src/Copilot/Language/Error.hs
@@ -14,9 +14,11 @@
            -> String -- ^ Name of the package in which the function is located.
            -> a
 impossible function package =
-  error $ "Impossible error in function " ++ function ++ ", in package " ++
-    package ++ ".  Please email Lee Pike at <lee pike @ gmail . com> " ++
-    "(remove spaces) or file a bug report on github.com."
+  error $ "Impossible error in function "
+    ++ function ++ ", in package " ++ package
+    ++ ". Please file an issue at "
+    ++ "https://github.com/Copilot-Language/copilot/issues"
+    ++ "or email the maintainers at <dev@dedden.net>"
 
 -- | Report an error due to an error detected by Copilot (e.g., user error).
 badUsage :: String -- ^ Description of the error.
diff --git a/src/Copilot/Language/Operators/Extern.hs b/src/Copilot/Language/Operators/Extern.hs
--- a/src/Copilot/Language/Operators/Extern.hs
+++ b/src/Copilot/Language/Operators/Extern.hs
@@ -26,8 +26,6 @@
 import Data.Word
 import Data.Int
 
-type Size = Int
-
 --------------------------------------------------------------------------------
 
 -- | Create a stream populated by an external global variable.
@@ -47,6 +45,7 @@
 -- | Deprecated.
 funArg :: Typed a => Stream a -> Arg
 funArg = Arg
+{-# DEPRECATED funArg "funArg is deprecated" #-}
 
 --------------------------------------------------------------------------------