diff --git a/COPYRIGHT b/COPYRIGHT
index f97db5d22..635e02a3a 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -1,12 +1,12 @@
 klayout is packaged by Peter C.S. Scholtens <peter.scholtens@xs4all.nl>
 and Matthias Köfferlein <matthias@koefferlein.de>
-and was obtained from https://www.klayout.org/downloads/source/klayout-0.26.10.tar.gz
+and was obtained from https://www.klayout.org/downloads/source/klayout-0.26.11.tar.gz
 
 Authors:
 	Matthias Köfferlein
 
 Copyright:
-	Copyright (C) 2006-2020 by Matthias Köfferlein.
+	Copyright (C) 2006-2021 by Matthias Köfferlein.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
diff --git a/version.sh b/version.sh
index 99ac1a8fd..5b9350cb0 100644
--- a/version.sh
+++ b/version.sh
@@ -2,10 +2,10 @@
 # This script is sourced to define the main version parameters
 
 # The main version
-KLAYOUT_VERSION="0.26.10"
+KLAYOUT_VERSION="0.26.11"
 
 # The version used for PyPI (don't use variables here!)
-KLAYOUT_PYPI_VERSION="0.26.10"
+KLAYOUT_PYPI_VERSION="0.26.11"
 
 # The build date
 KLAYOUT_VERSION_DATE=$(date "+%Y-%m-%d")