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Node's and V8's APIs changed so frequently that someone created an abstraction layer called NaN ("Native Abstractions for Node.js") for people developing Node binary plugins.

https://github.com/nodejs/nan

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Keep in mind that native modules coded against NAN1 do not work with NAN2. Not sure about forward compatibility of NAN.

Even NAN2 is breaking some things. Or at least deprecating. It's hard to keep up, and the docs and examples suck. I tried converting a node v0.10 module to using it and flailed horribly.

Edit: I don't mean to say the project sucks - docs sucking is just a general open source problem I can't really blame the authors for.

... and this integration uses that as well, so that nan stuff still works.

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