diff --git a/PyMca5/__init__.py b/PyMca5/__init__.py
index 34c1c9f74..608a1810b 100644
--- a/PyMca5/__init__.py
+++ b/PyMca5/__init__.py
@@ -27,7 +27,7 @@
 __contact__ = "sole@esrf.fr"
 __license__ = "MIT"
 __copyright__ = "European Synchrotron Radiation Facility, Grenoble, France"
-__version__ = "5.8.9"
+__version__ = "5.9.0"
 
 import os
 import sys
diff --git a/changelog.txt b/changelog.txt
index c5ed3b4ab..03e757287 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,10 @@
+VERSION 5.9.0
+-------------
+
+- IO. Compatibility with h5py 2.10 (Ubuntu 20.04)
+
+- GUI. Compatibility with Matplotlib 3.8
+
 VERSION 5.8.9
 -------------