What's Changed
* reset release notes by jhamman in https://github.com/zarr-developers/zarr-python/pull/1886
* Add zstd to old V3 supported codecs by rabernat in https://github.com/zarr-developers/zarr-python/pull/1914
* doc: update release notes for 2.18.2 by jhamman in https://github.com/zarr-developers/zarr-python/pull/1915
**Full Changelog**: https://github.com/zarr-developers/zarr-python/compare/v2.18.1...v2.18.2