memory limit in Node.js (and chrome V8)

In many places in the web, you will see:

What is the memory limit on a node process?

and the answer:

Currently, by default V8 has a memory limit of 512mb on 32-bit systems, and 1gb on 64-bit systems. The limit can be raised by setting --max-old-space-size to a maximum of ~1gb (32-bit) and ~1.7gb (64-bit), but it is recommended that you split your single process into several workers if you are hitting memory limits.

Can somebody confirm this is the case as Node.js seems to update frequently?

And more importantly, will it be the case in the near future?

I want to write JavaScript code which might have to deal with 4gb of javascript objects (and speed might not be an issue).

If I can't do it in Node, I will end up doing in java (on a 64bit machine) but I would rather not.

This has been a big concern for some using Node.js, and there are good news. The new memory limit for V8 is now unknown (not tested) for 64bit and raised to as much as 32bit address space allows in 32bit environments.

Read more here: http://code.google.com/p/v8/issues/detail?id=847

Starting nodejs app with a heap memory of 8 GB

node --max-old-space-size=8192 app.js

See node command line options documentation or run:

node --help --v8-options