diff --git a/CHANGE_LOG.txt b/CHANGE_LOG.txt
index 7867058..e50ac2d 100644
--- a/CHANGE_LOG.txt
+++ b/CHANGE_LOG.txt
@@ -1,7 +1,9 @@
 Change Log 0.1.9
 ----------------
 - [TODO] add LeQua2024 and normalized match distance to qp.error
+- [TODO] add CDE-iteration and Bayes-CDE methods
 - [TODO] add Friedman's method and DeBias
+- [TODO] check ignore warning stuff (check https://docs.python.org/3/library/warnings.html#temporarily-suppressing-warnings)
 
 - Added a default classifier for aggregative quantifiers, which now can be instantiated without specifying
     the classifier. The default classifier can be accessed in qp.environ['DEFAULT_CLS'] and is assigned to
diff --git a/quapy/data/datasets.py b/quapy/data/datasets.py
index 5a1e77a..6286688 100644
--- a/quapy/data/datasets.py
+++ b/quapy/data/datasets.py
@@ -1,7 +1,3 @@
-def warn(*args, **kwargs):
-    pass
-import warnings
-warnings.warn = warn
 import os
 from contextlib import contextmanager
 import zipfile
diff --git a/quapy/functional.py b/quapy/functional.py
index fa17a5c..fd7a88f 100644
--- a/quapy/functional.py
+++ b/quapy/functional.py
@@ -1,4 +1,3 @@
-import itertools
 import warnings
 from collections import defaultdict
 from typing import Literal, Union, Callable