What is the state of === and !is as of D0.174

[Pierre Rouleau]

Hi!
I'v been remotely following D's evolution.
Now that D.0174 no longer allows '===' and '!==' operator 
(http://www.digitalmars.com/d/changelog.html#new0174), what replaces 
'!=='?  Is it '!is' ?  Is '!in' allowed?

BTW, the lexical page (http://www.digitalmars.com/d/lex.html) still 
lists '===' and '!==' in the list of tokens.

Thanks

- P.R.