Steffen Michels wrote:
> Hi,
> 
> We are considering using the mdb.master3 branch of LMDB, but it is not clear 
> to me whether the data.mdb format will remain stable. Is there a chance that
> another migration of all databases will be required in the future when 
> switching now?

Yes. It is still unreleased because additional changes to the freelist format 
are planned,
and possibly a few other changes.

In any case, mdb_dump/mdb_load will always work for migrating to a new version.

> 
> regards,
> 
> Steffen


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