diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7e7d74270..a49d75689 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## 1.2.0a17 (2025-04-09)
+
+### Fix
+
+- better detection of multi variable in default attribute
+- better error message
+
 ## 1.2.0a16 (2025-04-03)
 
 ### Feat
diff --git a/pyproject.toml b/pyproject.toml
index aa4031ba1..2851b83f1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ requires = ["flit_core >=3.8.0,<4"]
 
 [project]
 name = "rougail"
-version = "1.2.0a16"
+version = "1.2.0a17"
 authors = [{name = "Emmanuel Garette", email = "gnunux@gnunux.info"}]
 readme = "README.md"
 description = "A consistency handling system that was initially designed in the configuration management"