[doc/tutorial] Update Python 2 EOL notice

Author: mpsonntag

doc/tutorial.rst

@@ -101,7 +101,9 @@ On Ubuntu, the dependency packages are available as ``python-lxml``, ``python-ya
 Note that on Ubuntu 14.04, the latter package additionally requires the
 installation of ``libxml2-dev``, ``libxslt1-dev``, and ``lib32z1-dev``.
 
-Python 2 has reached end of life. We will not keep any future versions of odml Python 2 compatible and also recommend using a Python version >= 3.7. If a Python version < 3.7 is a requirement, the following dependency needs to be installed as well:
+Python 2 has reached end of life. Current and future versions of odml are not Python 2 compatible. We removed support
+for Python 2 in August 2020 with version 1.5.2. We also recommend using a Python version >= 3.7. If a
+Python version < 3.7 is a requirement, the following dependency needs to be installed as well:
 
 The ``enum34`` package with a ``pip`` installation or ``python-enum`` using the OS package manager.