diff --git a/.cvsignore b/.cvsignore
index 311636a..69aca43 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -1 +1 @@
-irsim-9.7.47.tgz
+irsim-9.7.50.tgz
diff --git a/irsim.spec b/irsim.spec
index 275ddf2..6b3880b 100644
--- a/irsim.spec
+++ b/irsim.spec
@@ -1,7 +1,7 @@
 Name:             irsim
 Version:          9.7.50
 Release:          1%{?dist}
-Summary:          Switch-level simulator
+Summary:          Switch-level simulator used even for VLSI
 
 License:          GPLv2
 Group:            Applications/Engineering
diff --git a/sources b/sources
index 2668a72..8e23428 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-8e2dce73faa35f72ac6aaa717cacc97d  irsim-9.7.47.tgz
+d333ed23f45625cf5eca9703b078e7f7  irsim-9.7.50.tgz