Does the install script update node.js to latest/stable

Continuing the discussion from Node-RED 1.2.6 released:

The docs state that the script leaves Node.js alone if at 8 and installed from NodeSource. Is this now incorrect? If so, could the page be updated please? (Running on Raspberry Pi : Node-RED)

I note a previous answer was as per the docs (Should the node-red install script not handle upgrade of node.js from ARM v6 to ARM v7 instruction set? - #4 by dceejay) so has something changed?

It is also a shame this page is titled RaspberryPi rather than Debian-based.