diff --git a/README.md b/README.md
index fa80750..874929e 100644
--- a/README.md
+++ b/README.md
@@ -69,3 +69,9 @@ they aren't used at my site.
 
 Also welcome are modifications to support other distributions, or simply
 a note to say it works as-is on your distro.
+
+## Changelog
+
+### `0.4.0`
+
+  * [CASValidateServer functionality has been removed](https://github.com/Jasig/mod_auth_cas/commit/1b1032c230a3ddf9db9004326bd4d075ab602c0e) to retain compatibility with `mod_auth_cas` 1.1. Users must either fix their SSL certificate configuration using the `CASCertificatePath` directive, or switch to communicating with the CAS server over standard HTTP.
diff --git a/metadata.json b/metadata.json
index fbdc0b0..69b6c75 100644
--- a/metadata.json
+++ b/metadata.json
@@ -1,6 +1,6 @@
 {
   "name": "jgazeley/mod_auth_cas",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "author": "jgazeley",
   "summary": "Configure mod_auth_cas with Apache httpd",
   "license": "Apache 2.0",