MDBX (libmdbx) is revised and extended descendant of Symas LMDB with [set of improvements](https://github.com/leo-yuriev/libmdbx/blob/master/README.md#improvements-over-lmdb). For instance, MDBX provides automatic growing and shrinking DB size under control of [mdbx_env_set_geometry()]( https://github.com/leo-yuriev/libmdbx/blob/b0550b38b8a9c7230fcaed124f4be8a43e03bb4f/mdbx.h#L840-L844).
MDBX (libmdbx) is revised and extended descendant of Symas LMDB with set of improvements.
For instance, MDBX provides automatic growing and shrinking DB size under control of mdbx_env_set_geometry().