diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,10 @@
+filepath-bytestring (1.4.2.1.11) unstable; urgency=medium
+
+  * Deprecated this library, since filepath has added OsPath that
+    is based on a bytestring.
+
+ -- Joey Hess <id@joeyh.name>  Sat, 23 Jul 2022 12:41:53 -0400
+
 filepath-bytestring (1.4.2.1.10) unstable; urgency=medium
 
   * Depend on bytestring-0.11.2.0, and use it to implement encodeFilePath
diff --git a/filepath-bytestring.cabal b/filepath-bytestring.cabal
--- a/filepath-bytestring.cabal
+++ b/filepath-bytestring.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.18
 name:           filepath-bytestring
-version:        1.4.2.1.10
+version:        1.4.2.1.11
 -- NOTE: Don't forget to update CHANGELOG and the filepath dependency below
 license:        BSD3
 license-file:   LICENSE
@@ -23,6 +23,10 @@
     * "System.FilePath.ByteString" is an alias for the module appropriate to your platform.
     .
     All three modules provide the same API, and the same documentation (calling out differences in the different variants).
+    .
+    This package is now deprecated, since filepath 1.4.100.0 provides an
+    OsPath type that is based on a bytestring. See
+    https://hasufell.github.io/posts/2022-06-29-fixing-haskell-filepaths.html
 
 extra-source-files:
     System/FilePath/Internal.hs