diff --git a/Changes b/Changes
index 4917cc564..e95de00ea 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 3.911 devel
+
+
 * Verilator 3.910 2017-09-07
 
 ***   SystemPerl mode (-sp-deprecated) has been removed.
diff --git a/configure.ac b/configure.ac
index 9437161d2..d1ebd0fed 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,7 +6,7 @@
 
 #AC_INIT([Verilator],[#.### YYYY-MM-DD])
 #AC_INIT([Verilator],[#.### devel])
-AC_INIT([Verilator],[3.910 2017-09-07])
+AC_INIT([Verilator],[3.911 devel])
 # When releasing, also update header of Changes file
 
 AC_CONFIG_HEADER(src/config_build.h)