Breaking backwards compatiblity

[ludi]

On Friday, 9 March 2012 at 22:32:59 UTC, Walter Bright wrote:
> This statement is from Linus Torvalds about breaking binary 
> compatibility:
>
> https://lkml.org/lkml/2012/3/8/495
>
> While I don't think we need to worry so much at the moment 
> about breaking binary compatibility with new D releases, we do 
> have a big problem with breaking source code compatibility.
>
> This is why we need to have a VERY high bar for breaking 
> changes.

I don't think it is that straightforward to conclude anything
about source compatibility in a programming language from this
argument about binary compatibility in a kernel.