diff --git a/configure.ac b/configure.ac
index 880c183..fc3d212 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.57)
-AC_INIT([tslib], [1.22+], [tslib@lists.infradead.org], [tslib], [http://tslib.org])
+AC_INIT([tslib], [1.23-rc1], [tslib@lists.infradead.org], [tslib], [http://tslib.org])
 # AC_CONFIG_AUX_DIR(config)
 AM_INIT_AUTOMAKE([dist-bzip2 dist-xz subdir-objects])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES(yes)]) # use silent rules where available - automake 1.11
diff --git a/src/ts_version.c b/src/ts_version.c
index a0ef23f..20d4eb5 100644
--- a/src/ts_version.c
+++ b/src/ts_version.c
@@ -17,7 +17,7 @@
 #include "config.h"
 #include "tslib.h"
 
-#define LIBTS_DATESTAMP "[unreleased]"
+#define LIBTS_DATESTAMP "2024-02-17"
 
 static struct ts_lib_version_data version_data = {
 	PACKAGE_VERSION,