diff --git a/ChangeLog b/ChangeLog
index f5bc1d6..5f5710c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,5 @@
+1.2612.0
+ - TBD
 1.2609.0, 2026-09-01
 - speed up object member lookup by traversing child pages directly
 - fix buffered JSON dumping with zero-sized and small workspaces
diff --git a/configure.ac b/configure.ac
index f903c71..b5c34aa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 AC_PREREQ(2.52)
 
 # Process this file with autoconf to produce a configure script.
-AC_INIT([libfastjson], [1.2609.0], [rsyslog@lists.adiscon.com])
+AC_INIT([libfastjson], [1.2612.0.master], [rsyslog@lists.adiscon.com])
 # AIXPORT START: Detect the underlying OS
 unamestr=$(uname)
 AM_CONDITIONAL([AIX], [test x$unamestr = xAIX])