(v0.12.5)=
### 0.12.5 {small}`2025-11-03`
#### Bug fixes
- Remove use of private `read_dataset` internally inside {func}`anndata.experimental.read_elem_lazy` {user}`ilan-gold` ({pr}`2158`)
- Unblock version restriction on `dask` distributed writing by using threading scheduler always (see {pr}`2172`) {user}`ilan-gold` ({pr}`2183`)
#### Performance
- Use `name` on {func}`dask.array.map_blocks` internally when concatenating {class}`anndata.experimental.backed.Dataset2D` objects whose categoricals/nullable types must be converted to dask arrays {user}`ilan-gold` ({pr}`2121`)
- Enable automatic sharding in zarr v3 via {attr}`anndata.settings.auto_shard_zarr_v3` (via {mod}`zarr`'s own auto sharding mechanism i.e., `shards="auto"`) for all types except {class}`numpy.recarray` {user}`ilan-gold` ({pr}`2167`)
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