diff --git a/docs/simplesamlphp-upgrade-notes-2.0.md b/docs/simplesamlphp-upgrade-notes-2.0.md
index bef378e5032be98624202032e2d7368c1f6b9a0b..881385655a8d2a6c006cea116323509fadc89bb8 100644
--- a/docs/simplesamlphp-upgrade-notes-2.0.md
+++ b/docs/simplesamlphp-upgrade-notes-2.0.md
@@ -3,6 +3,7 @@ Upgrade notes for SimpleSAMLphp 2.0
 
 - The minimum PHP version required is now PHP 7.4.
 - Dropped support for Symfony 4
+- Dropped support for Twig 2
 - Old JSON-formatted dictionaries have been replaced by gettext / .po-files;
     You can find a migration guide here: https://github.com/simplesamlphp/simplesamlphp/wiki/Migrating-translations-(pre-migration)
 - Old PHP templates have been replaced by Twig-templates; you can find a migration