diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5bd883c..131d242 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## [unreleased] - xxxx-xx-xx
+## [0.54] - 2024-07-27
 
 ### Changed
 
diff --git a/configure b/configure
index 65ec597..3bdf15a 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.71 for lbdb 0.53.
+# Generated by GNU Autoconf 2.71 for lbdb 0.54.
 #
 # Report bugs to <roland@spinnaker.de>.
 #
@@ -611,8 +611,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='lbdb'
 PACKAGE_TARNAME='lbdb'
-PACKAGE_VERSION='0.53'
-PACKAGE_STRING='lbdb 0.53'
+PACKAGE_VERSION='0.54'
+PACKAGE_STRING='lbdb 0.54'
 PACKAGE_BUGREPORT='roland@spinnaker.de'
 PACKAGE_URL='https://www.spinnaker.de/lbdb/'
 
@@ -1327,7 +1327,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures lbdb 0.53 to adapt to many kinds of systems.
+\`configure' configures lbdb 0.54 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1393,7 +1393,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of lbdb 0.53:";;
+     short | recursive ) echo "Configuration of lbdb 0.54:";;
    esac
   cat <<\_ACEOF
 
@@ -1504,7 +1504,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-lbdb configure 0.53
+lbdb configure 0.54
 generated by GNU Autoconf 2.71
 
 Copyright (C) 2021 Free Software Foundation, Inc.
@@ -1741,7 +1741,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by lbdb $as_me 0.53, which was
+It was created by lbdb $as_me 0.54, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   $ $0$ac_configure_args_raw
@@ -7887,7 +7887,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by lbdb $as_me 0.53, which was
+This file was extended by lbdb $as_me 0.54, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -7947,7 +7947,7 @@ ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
-lbdb config.status 0.53
+lbdb config.status 0.54
 configured by $0, generated by GNU Autoconf 2.71,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index 936ea08..898239f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -15,7 +15,7 @@ dnl along with this program; if not, write to the Free Software Foundation,
 dnl Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
 
 AC_INIT([lbdb],
-	0.53,
+	0.54,
 	[roland@spinnaker.de],
 	[],
 	[https://www.spinnaker.de/lbdb/])
diff --git a/tests/package.m4 b/tests/package.m4
index 4916f93..f17f354 100644
--- a/tests/package.m4
+++ b/tests/package.m4
@@ -1,6 +1,6 @@
 # Signature of the current package.
 m4_define([AT_PACKAGE_NAME],	  [lbdb])
 m4_define([AT_PACKAGE_TARNAME],	  [lbdb])
-m4_define([AT_PACKAGE_VERSION],	  [0.53])
-m4_define([AT_PACKAGE_STRING],	  [lbdb 0.53])
+m4_define([AT_PACKAGE_VERSION],	  [0.54])
+m4_define([AT_PACKAGE_STRING],	  [lbdb 0.54])
 m4_define([AT_PACKAGE_BUGREPORT], [roland@spinnaker.de])
diff --git a/tests/testsuite b/tests/testsuite
index 609de0d..b1913f9 100755
--- a/tests/testsuite
+++ b/tests/testsuite
@@ -936,7 +936,7 @@ fi
 # List of tests.
 if $at_list_p; then
   cat <<_ATEOF || at_write_fail=1
-lbdb 0.53 test suite test groups:
+lbdb 0.54 test suite test groups:
 
  NUM: FILE-NAME:LINE     TEST-GROUP-NAME
       KEYWORDS
@@ -977,7 +977,7 @@ _ATEOF
   exit $at_write_fail
 fi
 if $at_version_p; then
-  printf "%s\n" "$as_me (lbdb 0.53)" &&
+  printf "%s\n" "$as_me (lbdb 0.54)" &&
   cat <<\_ATEOF || at_write_fail=1
 
 Copyright (C) 2021 Free Software Foundation, Inc.
@@ -1174,11 +1174,11 @@ exec 5>>"$at_suite_log"
 
 # Banners and logs.
 printf "%s\n" "## --------------------- ##
-## lbdb 0.53 test suite. ##
+## lbdb 0.54 test suite. ##
 ## --------------------- ##"
 {
   printf "%s\n" "## --------------------- ##
-## lbdb 0.53 test suite. ##
+## lbdb 0.54 test suite. ##
 ## --------------------- ##"
   echo
 
@@ -2038,7 +2038,7 @@ _ASBOX
   printf "%s\n" "Please send $at_msg and all information you think might help:
 
    To: <roland@spinnaker.de>
-   Subject: [lbdb 0.53] $as_me: $at_msg1$at_msg2
+   Subject: [lbdb 0.54] $as_me: $at_msg1$at_msg2
 
 You may investigate any problem if you feel able to do so, in which
 case the test suite provides a good starting point.  Its output may