diff --git a/ChangeLog.md b/ChangeLog.md
index ba9995e..add0a50 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -4,6 +4,13 @@ Change Log
 All notable changes to the project are documented in this file.
 
 
+[v2.6.0][UNRELEASED]
+--------------------
+
+### Changes
+### Fixes
+
+
 [v2.5.3][] - 2023-04-08
 -----------------------
 
@@ -488,7 +495,7 @@ problems this may cause!
 Initial extraction of frog DNA from [Finit][].  See [README][] for API details.
 
 
-[UNRELEASED]: https://github.com/troglobit/libite/compare/v2.5.2...HEAD
+[UNRELEASED]: https://github.com/troglobit/libite/compare/v2.5.3...HEAD
 [v2.5.2]: https://github.com/troglobit/libite/compare/v2.5.1...v2.5.2
 [v2.5.1]: https://github.com/troglobit/libite/compare/v2.5.0...v2.5.1
 [v2.5.0]: https://github.com/troglobit/libite/compare/v2.4.1...v2.5.0
diff --git a/configure.ac b/configure.ac
index b1e9eeb..ab0f02b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT(libite, 2.5.3, https://github.com/troglobit/libite/issues)
+AC_INIT(libite, 2.6.0-dev, https://github.com/troglobit/libite/issues)
 AC_CONFIG_AUX_DIR(aux)
 AM_INIT_AUTOMAKE([1.11 foreign dist-xz])
 AM_SILENT_RULES([yes])