FrameworkBundle Configuration -> bad documentation for assets

[poolerMF]

http://symfony.com/doc/current/reference/configuration/framework.html

I install SF3 .. in config.yml I see:

templating:
    engines: ['twig']
    #assets_version: SomeVersionScheme

when I uncomment assets_version ... I'm getting error:

Unrecognized option "assets_version" under "framework.templating"

In code I see that assets parameters moved under framework.assets .. documentation should by updated and template code for config.yml too