Version 3.12.16

Performance and stability improvements on all platforms.

git-svn-id: http://v8.googlecode.com/svn/trunk@12191 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/ChangeLog b/ChangeLog
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+2012-07-25: Version 3.12.16
+
+        Performance and stability improvements on all platforms.
+
+
 2012-07-24: Version 3.12.15
 
         Added PRESERVE_ASCII_NULL option to String::WriteAscii.