diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 00409941..973a15c9 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -15,7 +15,6 @@ Behavioral changes
 
 Bug fixes and small changes
 ---------------------------
-- improved compilation in tf.functions, use of XLA where applicable
 
 Requirement changes
 -------------------
@@ -24,6 +23,23 @@ Requirement changes
 Thanks
 ------
 
+Develop
+==========
+
+
+Major Features and Improvements
+-------------------------------
+
+- Support Python 3.9
+- Support TensorFlow 2.5
+- improved compilation in tf.functions, use of XLA where applicable
+- developer: modernization of setup, CI and more
+
+Thanks
+------
+
+- Remco de Boer for many commits and cleanups
+
 1.2.0 (17.12.20)
 ================
 
diff --git a/data/.gitignore b/data/.gitignore
deleted file mode 100644
index 75ba8ad6..00000000
--- a/data/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/B2K*.root*