Release D 2.089.0

[Manu]

On Tue, Nov 5, 2019 at 1:20 PM John Chapman via Digitalmars-d-announce
<digitalmars-d-announce at puremagic.com> wrote:
>
> On Tuesday, 5 November 2019 at 19:05:10 UTC, Manu wrote:
> > Incidentally, in your sample above there, `a` and `b` are not
> > shared... why not just write: `cas(&a, null, b);` ?? If source
> > data is not shared, you shouldn't cast to shared.
>
> Because casts were needed in 2.088 and earlier and I just updated
> to 2.089, unaware of the API change. Should I log `null` not
> working as a bug?

Yes