why to (not) support "older" compiler versions

[drug via Digitalmars-d]

On 03.11.2015 14:11, Iain Buclaw via Digitalmars-d wrote:
> On 3 November 2015 at 11:35, Daniel Murphy via Digitalmars-d
> <digitalmars-d at puremagic.com <mailto:digitalmars-d at puremagic.com>> wrote:
>
>     On 3/11/2015 7:52 PM, drug wrote:
>
>         On 03.11.2015 11:22, Johannes Pfau wrote:
>
>
>             I guess it's to be compatible with the latest DMD, LDC and
>             GDC. GDC
>             currently only provides the 2.066.1 frontend.
>
>         A bit offtopic - will the situation change with ddmd accepted? I
>         mean
>         the situation with different frontend version in different
>         compilers.
>
>
>     While DDMD does not have any direct effect on our ability to keep
>     the three compilers synced, some of the cleanup work that has been
>     done does help.
>
>
> Whilst other clean-up work has destroyed years of stable compatibility
> between different 'ends'.  ;-)
Hmm, I asked because I've heard that using ddmd would help with keeping 
the compilers synced and we would have the same version of frontend 
everywhere...