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I don't keep up with node end ES version compliance but is there a scheduled release that'll target all ES6 features?

I don't think so. They try as hard as possible. A lot of it is directly related to V8. In Node.JS v8.0.0 nightly they currently support 70% of the ES2015 spec without flags.

You can check the progress here: http://node.green/

According to the site:

Node.js ES2015 Support is at 99% for v8.0.0 nightly.

Node.js ES2017 Support is at 74% for v8.0.0 nightly.

Oh right I totally missed that the header changes as you scroll !

Wow, me neither. The discoverability there is pretty poor... if the header was just augmented with a dropdown, that would be great :)

Strictly speaking, tail call optimization is an ES6 feature. I had the impression that its implementation in V8 is on hold, so it might be a while.

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