| Chunk Grid    | ZEP       | V3      | V2      | Feature Flag |
| ------------- | --------- | ------- | ------- | ------------ |
| [regular]     | [ZEP0001] | ✓ | ✓ |              |
| [rectangular] | [ZEP0003] | ✓ |         |              |

[regular]: crate::array::chunk_grid::RegularChunkGrid
[rectangular]: crate::array::chunk_grid::RectangularChunkGrid
[ZEP0001]: https://zarr.dev/zeps/accepted/ZEP0001.html
[ZEP0003]: https://zarr.dev/zeps/draft/ZEP0003.html