diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+2025-11-07
+        * Version bump (4.6). (#679)
+
 2025-09-07
         * Version bump (4.5.1). (#666)
 
diff --git a/copilot-libraries.cabal b/copilot-libraries.cabal
--- a/copilot-libraries.cabal
+++ b/copilot-libraries.cabal
@@ -1,6 +1,6 @@
 cabal-version:       >=1.10
 name:                copilot-libraries
-version:             4.5.1
+version:             4.6
 synopsis:            Libraries for the Copilot language.
 description:
   Libraries for the Copilot language.
@@ -41,7 +41,7 @@
                , containers       >= 0.4   && < 0.8
                , mtl              >= 2.0   && < 2.4
                , parsec           >= 2.0   && < 3.2
-               , copilot-language >= 4.5.1 && < 4.6
+               , copilot-language >= 4.6   && < 4.7
 
   exposed-modules:
       Copilot.Library.Libraries