diff --git a/Changes b/Changes
index 0519cb196..bb75e3ea9 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,9 @@ Revision history for Verilator
 
 The contributors that suggested a given feature are shown in []. Thanks!
 
+* Verilator 3.923 devel
+
+
 * Verilator 3.922 2018-03-17
 
 **    Support IEEE 1800-2017 as default language.
diff --git a/configure.ac b/configure.ac
index 21f54e7d5..861b7b7cc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,7 +6,7 @@
 
 #AC_INIT([Verilator],[#.### YYYY-MM-DD])
 #AC_INIT([Verilator],[#.### devel])
-AC_INIT([Verilator],[3.922 2018-03-17])
+AC_INIT([Verilator],[3.923 devel])
 # When releasing, also update header of Changes file
 # and commit using "devel release" or "Version bump" message