ECMAscript is to be upgraded with the upcoming approval of ECMAscript 5 slated for next month, Eich said. The standard is in deliberations at ECMA. Formerly called ECMAscript 3.1, Version 5 will feature capabilities such as meta-programming and hardening of objects. "You can make objects that can't be tampered with," Eich said. "You can control modifications to your objects."
Deliberations on an upgrade to ECMAscript hit a roadblock in past years due to technical and political disagreements, resulting in continued work on ECMAscript 3.1 and development of a battle plan of sorts for improvements to the standard, known as Harmony.