On Mon., 30 Sep. 2019, 7:43 pm Petr Viktorin, <encu...@gmail.com> wrote:

> On 2019-09-30 00:33, Nick Coghlan wrote:
> [...]
> > We'll never change the size of the config structs (or any other public
> > struct) in a maintenance branch
>
> But we *will* change it in alphas/betas, and then we will ask people to
> try their software out with these.
> Of course, there are no actual API/ABI guarantees with alphas/betas:
> officially, you need to rebuild everything for each new pre-release. But
> with the goal being to find bugs rather than provide correct software,
> it's OK to take shortcuts (if you can then distinguish the bugs the
> shortcuts cause from actual bugs in the code).
>
> Issuing proper version mismatch errors (instead of random cryptic
> segfaults) could make for a much nicer experience when testing several
> successive alphas/betas.
>

That's actually the variant I implemented in my PR (release candidates and
final releases allow nominally compatible inexact matches, everything else
requires an exact version match).

Cheers,
Nick.

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