diff --git a/CHANGELOG.md b/CHANGELOG.md
index 43e4c4b5..ba0a3e21 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ Improved compatibility, more features, etc.
 ### Added
 
 ### Changed
+* Casemapping changed from custom unicode mapping to preliminary [rfc7700](https://github.com/ircv3/ircv3-specifications/pull/272) mapping.
 
 ### Removed
 
diff --git a/README.md b/README.md
index 36ab80a4..303e0780 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ This project adheres to [Semantic Versioning](http://semver.org/). For the purpo
 
 ## Features
 
-* UTF-8 nick and channel names
+* UTF-8 nick and channel names with rfc7700
 * [yaml](http://yaml.org/) configuration
 * native TLS/SSL support
 * server password (`PASS` command)