diff --git a/vvp/examples/assign_reg.vvp b/vvp/examples/assign_reg.vvp
index 01096a545..ec1b7e0c8 100644
--- a/vvp/examples/assign_reg.vvp
+++ b/vvp/examples/assign_reg.vvp
@@ -1,4 +1,4 @@
-:ivl_version "11.0" "vec4-stack";
+:ivl_version "12.0" "vec4-stack";
 :vpi_module "system";
 
 ; Copyright (c) 2001-2015  Stephen Williams (steve@icarus.com)
diff --git a/vvp/examples/copy.vvp b/vvp/examples/copy.vvp
index 3a158a4c9..bba8b7708 100644
--- a/vvp/examples/copy.vvp
+++ b/vvp/examples/copy.vvp
@@ -1,4 +1,4 @@
-:ivl_version "11.0" "vec4-stack";
+:ivl_version "12.0" "vec4-stack";
 :vpi_module "system";
 
 ; Copyright (c) 2001-2015  Stephen Williams (steve@icarus.com)
diff --git a/vvp/examples/disable.vvp b/vvp/examples/disable.vvp
index 840ff7b16..866a1039e 100644
--- a/vvp/examples/disable.vvp
+++ b/vvp/examples/disable.vvp
@@ -1,4 +1,4 @@
-:ivl_version "11.0" "vec4-stack";
+:ivl_version "12.0" "vec4-stack";
 :vpi_module "system";
 
 ; Copyright (c) 2001-2015  Stephen Williams (steve@icarus.com)
diff --git a/vvp/examples/edge.vvp b/vvp/examples/edge.vvp
index 7afc72af1..12f3809db 100644
--- a/vvp/examples/edge.vvp
+++ b/vvp/examples/edge.vvp
@@ -1,4 +1,4 @@
-:ivl_version "11.0" "vec4-stack";
+:ivl_version "12.0" "vec4-stack";
 :vpi_module "system";
 
 ; Copyright (c) 2001-2015  Stephen Williams (steve@icarus.com)
diff --git a/vvp/examples/fork.vvp b/vvp/examples/fork.vvp
index ac0ba8c3b..9a43e789f 100644
--- a/vvp/examples/fork.vvp
+++ b/vvp/examples/fork.vvp
@@ -1,4 +1,4 @@
-:ivl_version "11.0" "vec4-stack";
+:ivl_version "12.0" "vec4-stack";
 :vpi_module "system";
 
 ; Copyright (c) 2001-2015  Stephen Williams (steve@icarus.com)
diff --git a/vvp/examples/hello.vvp b/vvp/examples/hello.vvp
index d20381475..bf84af4f7 100644
--- a/vvp/examples/hello.vvp
+++ b/vvp/examples/hello.vvp
@@ -1,4 +1,4 @@
-:ivl_version "11.0" "vec4-stack";
+:ivl_version "12.0" "vec4-stack";
 :vpi_module "system";
 
 ; Copyright (c) 2001-2015  Stephen Williams (steve@icarus.com)
diff --git a/vvp/examples/hello2.vvp b/vvp/examples/hello2.vvp
index eec27d33f..c4524c70f 100644
--- a/vvp/examples/hello2.vvp
+++ b/vvp/examples/hello2.vvp
@@ -1,4 +1,4 @@
-:ivl_version "11.0" "vec4-stack";
+:ivl_version "12.0" "vec4-stack";
 :vpi_module "system";
 
 ; Copyright (c) 2001-2015  Stephen Williams (steve@icarus.com)
diff --git a/vvp/examples/memory.vvp b/vvp/examples/memory.vvp
index 447a8ff50..f395b1fea 100644
--- a/vvp/examples/memory.vvp
+++ b/vvp/examples/memory.vvp
@@ -1,4 +1,4 @@
-:ivl_version "11.0" "vec4-stack";
+:ivl_version "12.0" "vec4-stack";
 :vpi_module "system";
 
 ; Copyright (c) 2001-2015  Stephen Williams (steve@icarus.com)
diff --git a/vvp/examples/set_reg.vvp b/vvp/examples/set_reg.vvp
index 1489673c5..dc7168e3b 100644
--- a/vvp/examples/set_reg.vvp
+++ b/vvp/examples/set_reg.vvp
@@ -1,4 +1,4 @@
-:ivl_version "11.0" "vec4-stack";
+:ivl_version "12.0" "vec4-stack";
 :vpi_module "system";
 
 ; Copyright (c) 2001-2015  Stephen Williams (steve@icarus.com)
diff --git a/vvp/examples/sum.vvp b/vvp/examples/sum.vvp
index 8a9c07dcd..3b1af148f 100644
--- a/vvp/examples/sum.vvp
+++ b/vvp/examples/sum.vvp
@@ -1,4 +1,4 @@
-:ivl_version "11.0" "vec4-stack";
+:ivl_version "12.0" "vec4-stack";
 :vpi_module "system";
 
 ; Copyright (c) 2001-2015  Stephen Williams (steve@icarus.com)
diff --git a/vvp/examples/time.vvp b/vvp/examples/time.vvp
index c7d4a9e4d..bc14ba554 100644
--- a/vvp/examples/time.vvp
+++ b/vvp/examples/time.vvp
@@ -1,4 +1,4 @@
-:ivl_version "11.0" "vec4-stack";
+:ivl_version "12.0" "vec4-stack";
 :vpi_module "system";
 
 ; Copyright (c) 2001-2015  Stephen Williams (steve@icarus.com)
diff --git a/vvp/examples/vector.vvp b/vvp/examples/vector.vvp
index aa502ce8f..e1e73b74a 100644
--- a/vvp/examples/vector.vvp
+++ b/vvp/examples/vector.vvp
@@ -1,4 +1,4 @@
-:ivl_version "11.0" "vec4-stack";
+:ivl_version "12.0" "vec4-stack";
 :vpi_module "system";
 
 ;    This program is free software; you can redistribute it and/or modify