-2010-03-17: Version 2.1.5
+2010-03-22: Version 2.1.7
+
+ Fixed issue 650.
+
+ Fixed a bug where __proto__ was sometimes enumerated (issue 646).
+
+ Performance improvements for arithmetic operations.
+
+ Performance improvements for string operations.
+
+ Print script name and line number information in stack trace.
+
+
+2010-03-17: Version 2.1.6
Performance improvements for arithmetic operations.
Performance improvements for string operations.
+
2010-03-10: Version 2.1.4
Fixed code cache lookup for keyed IC's (issue http://crbug.com/37853).