diff --git a/CHANGES.rst b/CHANGES.rst
index d7c1c2c..330b41e 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -7,6 +7,16 @@
 
 Changes
 =======
+
+Version v4.0.0 (release 2022-07-29)
+
+- remove unnecessary html code for header-search-bar
+- fix warning from semantic-ui-react Search component
+- add marc21 and lom to the searchbar
+- change searchbar layout and use invenio-app-rdm searchbar
+- remove grey color of community block and reduce size
+- migrate js to use prettier
+
 Version 3.9.2 (released 2022-06-28)
 
 - fix: adopt renaming of serialize function (#269)
diff --git a/invenio_theme_tugraz/__init__.py b/invenio_theme_tugraz/__init__.py
index 983ab22..21ef584 100644
--- a/invenio_theme_tugraz/__init__.py
+++ b/invenio_theme_tugraz/__init__.py
@@ -10,6 +10,6 @@
 
 from .ext import InvenioThemeTugraz
 
-__version__ = "3.9.3"
+__version__ = "4.0.0"
 
 __all__ = ("__version__", "InvenioThemeTugraz")