@frissdiegurke No, the project owner mentioned and already tested it, i think
Please let me know if you tested it.
Which version should I use?
v0.8.x confirmed working on Node v0.12
v0.9.x works on v4 and probably v5.
I'm install NodeBB v0.8.2.
A recent version of nvm.
For node.js I use node 0.12.x
And so far works well.
For details you can inspect package.json of NodeBB : https://github.com/NodeBB/NodeBB/blob/master/package.json#L88