diff --git a/STATUS.md b/STATUS.md
index 4544224..8f10a52 100644
--- a/STATUS.md
+++ b/STATUS.md
@@ -7,6 +7,7 @@ moves; the plan of record for the current item is in the section below.
 
 | Version | What | Issues |
 |---|---|---|
+| 0.17.1 | Visium HD, one bin size at a time, with the new `spatial` extra (pyarrow) | #81 |
 | 0.17.0 | `convert` reads Visium (Space Ranger 1–4) and Xenium (XOA 1–4) with positions, images and Xenium's analysis | #79 |
 | 0.16.2 | Documentation site (guides, troubleshooting, a page per format); `export image` writes PNG to stdout without `-o` | #76, #77 |
 | 0.16.1 | `subset`, `split` and the MuData export narrow categoricals (and their colours) as anndata's subsetting does | #74 |
@@ -20,24 +21,8 @@ The conversion epic's sub-issues (#21–#30) are all done and ticked in #20.
 
 ## In progress
 
-### Visium HD (`feat/visium-hd`, for 0.17.1)
-
-Decisions:
-- One bin size per output, `--bin-size` (8 µm by default, as 10x
-  recommends); a bin folder given directly reads as it is.
-- pyarrow comes with a new `spatial` extra, in the image too, and is
-  imported only by `formats/parquet.py`.
-- The Parquet positions are read as a buffered stream, a set of columns per
-  pass; the join holds barcodes as bytes; images are written in strips as
-  they are read. 2 µm on 10x's tiny sample: 3.5 s, 470 MB without images.
-
-Steps:
-- [x] `formats/parquet.py`, HD in `visium.py`, `--bin-size`
-- [x] Tests: HD fixture, flags and refusals, the missing extra, a performance
-  guard, a scanpy and pandas comparison
-- [x] Real data: 10x's SR 4.0.1 tiny HD sample at 2, 8 and 16 µm
-- [x] Docs
-- [ ] PR, review, merge; release 0.17.1
+Nothing. Visium HD is out in 0.17.1, completing the spatial import;
+Space Ranger 4's cell segmentation is first among the follow-ups below.
 
 ## Follow-ups noticed
 
diff --git a/docs/changelog.md b/docs/changelog.md
index 230013f..26cc1e6 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -8,6 +8,38 @@ nav_order: 7
 Notable changes to `adata-cli`. Versions are `MAJOR.MINOR.PATCH`; tags carry no
 `v` prefix.
 
+## 0.17.1
+
+Visium HD joins standard Visium and Xenium: `convert` reads a Space Ranger
+3 or 4 HD output at one bin size, with its bins' positions, images and
+scale factors, through a new optional `spatial` extra (pyarrow) for the
+Parquet positions.
+
+### Added
+
+- **Visium HD** ([#81](https://github.com/cellgeni/adata-cli/pull/81)).
+  `adata convert outs -o bins.h5ad` reads the 8 µm bins, as 10x recommends
+  for analysis; `--bin-size 2` or `16` picks another size, and a bin folder
+  given directly reads as it is. The layout is standard Visium's: obs
+  `in_tissue`, `array_row`, `array_col`; `obsm["spatial"]` in
+  full-resolution pixels; the bin folder's images and scale factors in
+  `uns["spatial"]`. Checked in CI against scanpy with pandas reading the
+  positions, and on 10x's SR 4.0.1 tiny sample at every bin size.
+  - The positions are read as a buffered stream, the barcodes and the
+    numbers in separate passes. On that sample the 2 µm bins (11.2 million
+    positions, 330,035 in the matrix) convert in 3.5 s with a 470 MB peak
+    without images, where pandas alone takes about 1 GB to read them.
+- **The `spatial` extra**: `pip install 'pyadata-cli[spatial]'` adds
+  pyarrow, which only Visium HD needs; the container image has it.
+
+### Changed
+
+- **Images are written a strip of rows at a time**, as they are read, rather
+  than loaded before the write starts: Visium HD's hires image is 6,000
+  pixels, some 100 MB.
+- **Barcodes are matched as bytes**, a quarter of the memory of numpy's
+  unicode, for Visium, Visium HD and Xenium alike.
+
 ## 0.17.0
 
 `convert` reads 10x's spatial outputs with their coordinates: a Space
diff --git a/pyproject.toml b/pyproject.toml
index 233ab1e..bea9d45 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@
 # so the distribution is published as `pyadata-cli`. The import package
 # and the command are both still `adata`.
 name = "pyadata-cli"
-version = "0.17.0"
+version = "0.17.1"
 description = "Streaming CLI for exploring and editing large AnnData .h5ad and .zarr stores"
 readme = "README.md"
 requires-python = ">=3.12"
diff --git a/uv.lock b/uv.lock
index 0238921..e10a297 100644
--- a/uv.lock
+++ b/uv.lock
@@ -486,7 +486,7 @@ wheels = [
 
 [[package]]
 name = "pyadata-cli"
-version = "0.17.0"
+version = "0.17.1"
 source = { editable = "." }
 dependencies = [
     { name = "h5py" },