diff --git a/mozilla/browser/app/profile/all.js b/mozilla/browser/app/profile/all.js
index 9d94924bcab..b4cbef29bce 100644
--- a/mozilla/browser/app/profile/all.js
+++ b/mozilla/browser/app/profile/all.js
@@ -47,7 +47,7 @@ pref("keyword.URL", "http://www.google.com/search?btnI=I%27m+Feeling+Lucky&ie=UT
 
 pref("general.useragent.locale", "chrome://navigator/locale/navigator.properties");
 pref("general.useragent.contentlocale", "chrome://navigator-region/locale/region.properties");
-pref("general.useragent.misc", "rv:1.5b");
+pref("general.useragent.misc", "rv:1.6a");
 pref("general.useragent.vendor", "Firebird");
 pref("general.useragent.vendorSub", "0.7+");
 
diff --git a/mozilla/browser/app/profile/firebird.js b/mozilla/browser/app/profile/firebird.js
index 9d94924bcab..b4cbef29bce 100644
--- a/mozilla/browser/app/profile/firebird.js
+++ b/mozilla/browser/app/profile/firebird.js
@@ -47,7 +47,7 @@ pref("keyword.URL", "http://www.google.com/search?btnI=I%27m+Feeling+Lucky&ie=UT
 
 pref("general.useragent.locale", "chrome://navigator/locale/navigator.properties");
 pref("general.useragent.contentlocale", "chrome://navigator-region/locale/region.properties");
-pref("general.useragent.misc", "rv:1.5b");
+pref("general.useragent.misc", "rv:1.6a");
 pref("general.useragent.vendor", "Firebird");
 pref("general.useragent.vendorSub", "0.7+");
 
diff --git a/mozilla/config/milestone.txt b/mozilla/config/milestone.txt
index d10cee5f539..593f15a9a0c 100644
--- a/mozilla/config/milestone.txt
+++ b/mozilla/config/milestone.txt
@@ -11,4 +11,4 @@
 #--------------------------------------------------------
 
 
-1.5b
+1.6a
diff --git a/mozilla/modules/libpref/src/init/all.js b/mozilla/modules/libpref/src/init/all.js
index cc1d07347c2..a0ffce5196c 100644
--- a/mozilla/modules/libpref/src/init/all.js
+++ b/mozilla/modules/libpref/src/init/all.js
@@ -47,7 +47,7 @@ pref("keyword.URL", "http://keyword.netscape.com/keyword/");
 pref("keyword.enabled", false);
 pref("general.useragent.locale", "chrome://navigator/locale/navigator.properties");
 pref("general.useragent.contentlocale", "chrome://navigator-region/locale/region.properties");
-pref("general.useragent.misc", "rv:1.5b");
+pref("general.useragent.misc", "rv:1.6a");
 
 pref("general.startup.browser",             true);
 pref("general.startup.mail",                false);