diff --git a/CHANGELOG.md b/CHANGELOG.md
index c18b9eb567cd28a04c7238855a0d80e57bb85761..7c50fb1b69907ffb23b05fa8829d01a34b6c9165 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - ZipFileConverter that opens zip files and exposes their contents as
   File and Directory structure elements.
 - `linkahead-crawler` script as alias for `caosdb-crawler`.
+- Transformer function definietion in the cfood support variable
+  substitutions now.
 
 ### Changed ###