diff --git a/patches/patch20201110-4.0.0-rc1/patch.sh b/patches/patch20201110-4.0.0-rc1/patch.sh
new file mode 100755
index 0000000000000000000000000000000000000000..c784a055d2db19d6010647439c603daf9b7a0c27
--- /dev/null
+++ b/patches/patch20201110-4.0.0-rc1/patch.sh
@@ -0,0 +1,50 @@
+#!/bin/bash
+#
+# ** header v3.0
+# This file is a part of the CaosDB Project.
+#
+# Copyright (C) 2018 Research Group Biomedical Physics,
+# Max-Planck-Institute for Dynamics and Self-Organization Göttingen
+# Copyright (C) 2020 IndiScale GmbH <info@indiscale.com>
+# Copyright (C) 2020 Timm Fitschen <t.fitschen@indiscale.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+#
+# ** end header
+#
+# Update mysql schema to version v4.0.0-rc1
+NEW_VERSION="v4.0.0-rc1"
+OLD_VERSION="v3.0.0-rc2"
+
+if [ -z "$UTILSPATH" ]; then
+ UTILSPATH="../utils"
+fi
+
+. $UTILSPATH/patch_header.sh $*
+
+
+check_version $OLD_VERSION
+
+# * Add a `direct` column to `archive_isa` table
+# * Remove unused procedures:
+#    * `initNegationFilter`
+#    * `initConjunctionFilter`
+#    * `finishNegationFilter`
+mysql_execute_file $PATCH_DIR/update_archive_isa.sql
+
+
+update_version $NEW_VERSION
+
+success
+