Hi all,
  2.071 introduced a significant ABI change: the layout of classes that inherit from interfaces has changed.
Unfortunately, this is not very prominently featured in the release notes:
https://dlang.org/changelog/2.071.0.html
(try to find it)

My request is to add ABI changes to the "Compiler Changes" section, or to a "Spec Changes" section or something. Adding it to "Compiler enhancements" is understating the importance of this, I feel.
It can save a lot of bughunting time when linking to a library compiled with DMD2.070 (I ran into a different problem, but nevertheless spent a lot of time on it :().

Thanks,
  Johan

On 22/11/2016 5:46 AM, Johan Engelen wrote:
> Hi all,
>   2.071 introduced a significant ABI change: the layout of classes that
> inherit from interfaces has changed.
> Unfortunately, this is not very prominently featured in the release notes:
> https://dlang.org/changelog/2.071.0.html
> (try to find it)
>
> My request is to add ABI changes to the "Compiler Changes" section, or
> to a "Spec Changes" section or something. Adding it to "Compiler
> enhancements" is understating the importance of this, I feel.
> It can save a lot of bughunting time when linking to a library compiled
> with DMD2.070 (I ran into a different problem, but nevertheless spent a
> lot of time on it :().
>
> Thanks,
>   Johan

Reminder, don't mix dmd/druntime/Phobos versions in a single executable.