D is our last hope

[Iain Buclaw]

On Wednesday, 20 December 2023 at 14:01:00 UTC, Richard (Rikki) 
Andrew Cattermole wrote:
>
> On 21/12/2023 2:38 AM, Siarhei Siamashka wrote:
>>     Oh and GCC has rules around what compilers may be used to 
>> compile
>>     GCC for distribution. So if D isn't already on a given 
>> target...
>>     have fun with that.
>> 
>> Could you please clarify this statement?
>
> From what Iain has said that I remember, you can only use the 
> last 3 major versions in binary form to compile the next 
> version. They are pretty strict.
>
> That is all I know on the subject.
>

Keep compatibility with at _least_ the last 3 major versions was 
a question/request during my GNU Cauldron talk back in 2018.  The 
more that we can get away with, the better.