- [Move most of `mdbx_chk` functional to the library API](https://web.archive.org/web/https://github.com/erthink/libmdbx/issues/204).
- [Replace SRW-lock on Windows to allow shrink DB with `MDBX_NOTLS` option](https://web.archive.org/web/https://github.com/erthink/libmdbx/issues/210).
- [More flexible support of asynchronous runtime/framework(s)](https://web.archive.org/web/https://github.com/erthink/libmdbx/issues/200).
- [Migration guide from LMDB to MDBX](https://web.archive.org/web/https://github.com/erthink/libmdbx/issues/199).
- [Support for RAW devices](https://web.archive.org/web/https://github.com/erthink/libmdbx/issues/124).
- [Support MessagePack for Keys & Values](https://web.archive.org/web/https://github.com/erthink/libmdbx/issues/115).
- [Engage new terminology](https://web.archive.org/web/https://github.com/erthink/libmdbx/issues/137).