Roughly every six weeks, we create a new branch of V8 as part of our release process. Each version is branched from V8’s Git master immediately before Chrome branches for a Chrome Beta milestone. Today we’re pleased to announce our newest branch, V8 version 4.5, which will be in beta until it is released in coordination with Chrome 45 Stable. V8 v4.5 is filled with all sorts of developer-facing goodies, so we’d like to give you a preview of some of the highlights in anticipation of the release in several weeks.

Last week we announced that we’ve turned on TurboFan for certain types of JavaScript. In this post we wanted to dig deeper into the design of TurboFan.

Welcome to the V8 developer blog!

Historically, the V8 team has published blog posts that appeal to the wider web development audience on the Chromium blog. In order to deliver more in-depth posts especially targeted to the hardcore coder and virtual machine enthusiasts out there, we’ve spun off this V8-specific blog. Big-ticket items will continue to be posted to the Chromium blog, but we hope you’ll stay tuned here for even more posts about advanced compiler techniques, low-level performance optimizations, and all the technical bits that make V8 tick.