message: Prepare 5.2.1
diff: _**If you are upgrading:** please see [`UPGRADING.md`](UPGRADING.md)._
  +## [5.2.1] - 2019-09-20
  +
  +### Added
  +
  +- Document minimum version for node 12 ([`9748454`](https://github.com/Level/leveldown/commit/9748454)) ([**@vweevers**](https://github.com/vweevers))
  +
  +### Fixed
  +
  +- Close db in `stack-blower` test ([#668](https://github.com/Level/leveldown/issues/668)) ([**@vweevers**](https://github.com/vweevers))
  +
  ## [5.2.0] - 2019-09-06
  ### Changed
  @@ -1007,6 +1017,8 @@ _**If you are upgrading:** please see [`UPGRADING.md`](UPGRADING.md)._
  :seedling: First release. Extracted from `levelup` as a stand-alone package ([**@rvagg**](https://github.com/rvagg))
  +[5.2.1]: https://github.com/Level/leveldown/compare/v5.2.0...v5.2.1
  +
  [5.2.0]: https://github.com/Level/leveldown/compare/v5.1.1...v5.2.0
  [5.1.1]: https://github.com/Level/leveldown/compare/v5.1.0...v5.1.1
  