diff --git a/core-legacy/version.h b/core-legacy/version.h
index ebeab0f..777bbf5 100644
--- a/core-legacy/version.h
+++ b/core-legacy/version.h
@@ -4,7 +4,7 @@
 #define _INCLUDE_MMS_VERSION_H_
 
 #define MMS_BUILD_STRING     ""
-#define MMS_BUILD_UNIQUEID   "693:985ad6dcc269" MMS_BUILD_STRING
+#define MMS_BUILD_UNIQUEID   "702:b21cf03c429a" MMS_BUILD_STRING
 #define MMS_FULL_VERSION    "1.8.1" MMS_BUILD_STRING
 #define MMS_FILE_VERSION    1,8,1,0
 
diff --git a/core/version.h b/core/version.h
index ebeab0f..777bbf5 100644
--- a/core/version.h
+++ b/core/version.h
@@ -4,7 +4,7 @@
 #define _INCLUDE_MMS_VERSION_H_
 
 #define MMS_BUILD_STRING     ""
-#define MMS_BUILD_UNIQUEID   "693:985ad6dcc269" MMS_BUILD_STRING
+#define MMS_BUILD_UNIQUEID   "702:b21cf03c429a" MMS_BUILD_STRING
 #define MMS_FULL_VERSION    "1.8.1" MMS_BUILD_STRING
 #define MMS_FILE_VERSION    1,8,1,0
 
diff --git a/loader/version.h b/loader/version.h
index ebeab0f..777bbf5 100644
--- a/loader/version.h
+++ b/loader/version.h
@@ -4,7 +4,7 @@
 #define _INCLUDE_MMS_VERSION_H_
 
 #define MMS_BUILD_STRING     ""
-#define MMS_BUILD_UNIQUEID   "693:985ad6dcc269" MMS_BUILD_STRING
+#define MMS_BUILD_UNIQUEID   "702:b21cf03c429a" MMS_BUILD_STRING
 #define MMS_FULL_VERSION    "1.8.1" MMS_BUILD_STRING
 #define MMS_FILE_VERSION    1,8,1,0
 
diff --git a/support/buildbot/bootstrap.pl b/support/buildbot/bootstrap.pl
index 0bf7eff..2f0047d 100755
--- a/support/buildbot/bootstrap.pl
+++ b/support/buildbot/bootstrap.pl
@@ -20,5 +20,5 @@ if ($^O eq "linux")
 	Build::Command("flip -u support/versionchanger.pl");
 	Build::Command("chmod +x support/versionchanger.pl");
 }
-Build::Command(Build::PathFormat('support/versionchanger.pl') . ' --buildstring="-dev"');
+#Build::Command(Build::PathFormat('support/versionchanger.pl') . ' --buildstring="-dev"');
 
diff --git a/support/changelog.txt b/support/changelog.txt
index f83610c..610f6b9 100644
--- a/support/changelog.txt
+++ b/support/changelog.txt
@@ -1,3 +1,6 @@
+2010/05/02 1.8.1:
+ - Added support for latest L4D2 and Orange Box engine updates.
+
 2009/12/19 1.8.0:
  - Added support for the Source engine that runs Left 4 Dead 2 (bug 4078).
  - Added VP hook support to legacy SourceHook (bug 4019).