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.
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