V8 - 4.9.279.0

[bricss]

Hi there,

Chrome 49 landed into Dev channel at this week with V8 4.9.279.0 on-board and its time to think about when to drop it into the master branch 😎

P. S.: V8 4.9.279.0 - covers 91% of ES6 spec. 🔥

[bnoordhuis]

We normally upgrade after the release branch is created in the V8 repository (e.g. the 4.8 branch) but there isn't one yet for 4.9.

[ofrobots]

If you want to play with Node.js with V8 4.9, I have a branch here: https://github.com/ofrobots/node/tree/vee-eight-4.9

It is not ready for prime time yet. Specifically there is a change in V8 DEPS and we need now have a source dependency (chromium/src/base/trace_event/common.git) to be able to build. I am working on figuring out how to best deal with that in Node.

[nicolasparada]

Can use es2015 modules syntax (import/export) with the V8 4.9?

[MylesBorins]

@nicolasparada it does not appear that module loading has been implemented in v8 yet. You can follow progress on the v8 bugtracker and whatwg/loader

[nicolasparada]

Ok.

[YurySolovyov]

@thealphanerd I think the first link should be https://bugs.chromium.org/p/v8/issues/detail?id=1569

[cjihrig]

I'm going to close this. We update V8 fairly regularly already. 4.9 will make its way in eventually, and this issue will likely be forgotten about by then.

[josephschmitt]

The V8 version has been stuck at 4.6.85.31 since November. Is it still planned to pull in the latest V8 regularly? 4.9 has a bunch of new ES6 support I'd love to be able to use.

[r-52]

@josephschmitt are you referring to a specific version? The master branch has a v8 version 4.9 and there's a wip pr to update v8 to the version 5 release.

[josephschmitt]

@romankl I looked up the current version of V8 from here https://nodejs.org/en/download/releases/ and it states that Node.js v5.9.0 has V8 v4.6.85.31. Is there something I'm missing?

[bricss]

I suppose Node.js v6.0.0 will include V8 v4.9~

[jbergstroem]

@bricss actually, we're looking to use 5.0 for node 6: #5766

[josephschmitt]

@jbergstroem so is node 6 the next time the v8 version will be bumped up?