Up to date documentation..?

[simendsjo]

Seems the documentation is lagging a bit behind.. It will be frustrating 
to rely on features that will be removed / vastly changed in the future.

Not quite sure I can trust the wiki..
http://www.prowiki.org/wiki4d/wiki.cgi?LanguageDevel

This is under "pending decision", but it's marked with a specific version.
* [DMD 2.051] toString() needs to be improved (Eg, change signature to 
void toString(void delegate(const char[] s) put, const char[] formatstr))

The changelog doesn't mention anything though.

Is my best bet to buy Andrei's book and learn from there? Not touching 
any features he doesn't mention?