Bump version

build.sh

@@ -1,4 +1,15 @@
 #! /usr/bin/env bash
+#
+# Copyright ©1998-2023 by Richard A. Wilkes. All rights reserved.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, version 2.0. If a copy of the MPL was not distributed with
+# this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# This Source Code Form is "Incompatible With Secondary Licenses", as
+# defined by the Mozilla Public License, version 2.0.
+#
+
 set -eo pipefail
 
 trap 'echo -e "\033[33;5mBuild failed on build.sh:$LINENO\033[0m"' ERR
@@ -14,7 +25,7 @@ for arg in "$@"; do
     ;;
   --dist|-d)
     EXTRA_BUILD_FLAGS="-a -trimpath"
-    RELEASE="5.8.0"
+    RELEASE="5.9.0"
     DIST=1
     case $(uname -s) in
     Darwin*)