Are there any default dmd optimizations

[foobar]

On Wednesday, 27 February 2013 at 21:57:06 UTC, Andrei 
Alexandrescu wrote:
> On 2/27/13 3:16 PM, Jacob Carlborg wrote:
>> On 2013-02-27 14:29, Andrei Alexandrescu wrote:
>>
>>> Four years ago I would've entirely agreed. But right now it's 
>>> an odd
>>> comment to make seeing as we're discussing all major 
>>> decisions in this
>>> group and we're switching full-bore to DIPs.
>>
>> The "alias this" syntax the foobar mentioned was removed under 
>> the radar
>> and only discussed in a pull request.
>
> I agree we were sloppy on that. Kenji was feeling strong about 
> and Walter and I didn't have particular objections, so we gave 
> him green light. In the process we neglected backward 
> compatibility.
>
> Andrei

At a bare minimum, there should be a well defined place to notify 
*users* (NOT DMD contributers) about language changes *ahead of 
time*. If such place is not defined, than people do not know 
where to look for that info if that is even available at all. 
This at least will remove the element of surprise.

For D to be really open as it claims to be, there should be 
additional guidelines about the decision making process itself. 
This should be made accessible for *users* (D programmers). I 
need not be a core DMD contributer, nor should I need to know C++ 
or DMD's internals, Nor should I need to browse among hundreds of 
bugs on bugzilla or pull requests on github (both can be labeled 
very poorly) to discern out of that sea of information what are 
the *few* visible changes to the language and core library APIs.