diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7369b3e..7217186 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
-## 2.1.1 - TBD
+## 2.1.1 - 2017-12-06
 
 ### Added
 
@@ -18,7 +18,9 @@ All notable changes to this project will be documented in this file, in reverse
 
 ### Removed
 
-- Nothing.
+- [#27](https://github.com/zendframework/zend-expressive-aurarouter/pull/27)
+  removes support for the 3.0.0-dev versions of zend-expressive-router, as it
+  contains backwards-incompatible API changes.
 
 ### Fixed