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A new beta of Google’s V8 JavaScript engine is now available.

V8 is a staple in both the Chrome browser and the Node.js JavaScript runtime. WebAsembly is also supported in Mozilla Firefox, Apple Safari, and Microsoft Edge, though those browsers do not use V8.

Future version: New features in V8 Version 6.8 beta

Google V8 Version 6.8, released in beta, focuses on performance and memory usage.

Performance has been boosted by array destructuring improvements. The optimizing compiler had not been generating ideal code for array destructuring, so the builders of V8 blocked escape analysis to eliminate temporary allocation, which made array destructuring with a temporary array as fast as a sequence of assignments.