committing changes in /etc made by "apt-get upgrade"

Package changes:
-code-brand 6.4-19 all
+code-brand 6.4-20 all
-curl 7.68.0-1ubuntu2.5 amd64
+curl 7.68.0-1ubuntu2.6 amd64
-libcurl3-gnutls 7.68.0-1ubuntu2.5 amd64
-libcurl4 7.68.0-1ubuntu2.5 amd64
+libcurl3-gnutls 7.68.0-1ubuntu2.6 amd64
+libcurl4 7.68.0-1ubuntu2.6 amd64
-libglib2.0-0 2.64.6-1~ubuntu20.04.3 amd64
-libglib2.0-data 2.64.6-1~ubuntu20.04.3 all
+libglib2.0-0 2.64.6-1~ubuntu20.04.4 amd64
+libglib2.0-data 2.64.6-1~ubuntu20.04.4 all
-libmysqlclient21 8.0.25-0ubuntu0.20.04.1 amd64
+libmysqlclient21 8.0.26-0ubuntu0.20.04.2 amd64
-loolwsd 6.4.10-5 amd64
+loolwsd 6.4.10-6 amd64
-mysql-client-8.0 8.0.25-0ubuntu0.20.04.1 amd64
-mysql-client-core-8.0 8.0.25-0ubuntu0.20.04.1 amd64
+mysql-client-8.0 8.0.26-0ubuntu0.20.04.2 amd64
+mysql-client-core-8.0 8.0.26-0ubuntu0.20.04.2 amd64
-mysql-server 8.0.25-0ubuntu0.20.04.1 all
-mysql-server-8.0 8.0.25-0ubuntu0.20.04.1 amd64
-mysql-server-core-8.0 8.0.25-0ubuntu0.20.04.1 amd64
+mysql-server 8.0.26-0ubuntu0.20.04.2 all
+mysql-server-8.0 8.0.26-0ubuntu0.20.04.2 amd64
+mysql-server-core-8.0 8.0.26-0ubuntu0.20.04.2 amd64
-networkd-dispatcher 2.0.1-1 all
+networkd-dispatcher 2.1-2~ubuntu20.04.1 all

diff --git a/mysql/FROZEN b/mysql/FROZEN
new file mode 120000 (symlink)
index 0000000..2bc63ae
--- /dev/null
+++ b/mysql/FROZEN
@@ -0,0 +1 @@
+../../usr/share/doc/mysql-common/frozen-mode/downgrade
\ No newline at end of file