README/CHANGES: document LMDB 1.0 on-disk format incompatibility - #428
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thegushi merged 1 commit intoJul 22, 2026
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LMDB 1.0 changed its on-disk file format in a way that is not compatible with 0.9.x, with no automatic detection or in-place upgrade of an existing database file. Document the dump/reload workaround (mdb_dump on the old version, mdb_load on the new one) for operators using the optional --with-lmdb backend.
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Summary
--with-lmdbbullet) with the dump/reload workaround (old version'smdb_dump, then new version'smdb_load).Test plan