`update` and `require` properties for AA

[Steven Schveighoffer]

On 6/26/18 11:51 AM, H. S. Teoh wrote:
> On Tue, Jun 26, 2018 at 07:25:09AM +0000, Mike Franklin via Digitalmars-d wrote:
> [...]
>> I think the documentation gets published prematurely.  The new methods
>> for the associative arrays should come in the next release, scheduled
>> for July 1st.  https://dlang.org/changelog/pending.html#require_update
> [...]
> 
> Seriously, we need to start implementing versioned docs on dlang.org.

We do. But stable right now is in beta, so the docs are going to reflect 
what will soon be released.

What we probably should do is have a "released" branch for the docs. Or 
just answer the odd question every once in a while on the forums :)

-Steve