DIP66 has been approved contingent to a few amendments as noted

[via Digitalmars-d]

On Wednesday, 24 December 2014 at 06:13:43 UTC, H. S. Teoh via 
Digitalmars-d wrote:
> On Tue, Dec 23, 2014 at 11:05:05PM +0000, Vic via Digitalmars-d 
> wrote:
>> 
>> http://wiki.dlang.org/DIP66
>> 
>> One more feature.
> [...]
>
> Which has been promised by TDPL years ago and only now become 
> fully implemented.

Is TDPL the language spec? As I've pointed out before "multiple 
alias this" was implemented in Self, then removed because it was 
considered confusing and not useful. "lazy" was implemented in 
Algol and then shunned in just about all languages that followed. 
Time for D to learn from history...