gh-1028: Release of v2026.1 (#1029)

Author: paddyroddy

CHANGELOG.md

@@ -4,6 +4,36 @@
 
 All functional changes to the project are documented in this file.
 
+## [2026.1] (29 Jan 2026)
+
+- gh-1034: Expose glass.healpix module (#1035)
+- gh-923: migrate from mypy to ty (#926)
+- gh-977: Actually test deprecated fields.py functions (#1033)
+- gh-977: Port remaining functions in `fields.py` (#979)
+- gh-903: Port galaxies.py to support jax (#919)
+- gh-1002: Add a section to the contributing guidelines on regression (1019)
+- gh-996: Fix bug in `apply_along_axis` (#997)
+- gh-969: determine `xp` when function called in XPAdditions (#994)
+- gh-990: fix `vmap_galactic_ecliptic` porting (#991)
+- gh-970: Move rng code to its own module (#971)
+- gh-960: move `healpy`/`healpix` work to own module (#968)
+- gh-902: port `cls2cov`, `spectra_indices`, `_glass_to_healpix_alm` in
+  `fields.py` (#963)
+- gh-958: make `positions_from_delta` Array API compatible (#959)
+- gh-907: Port points.uniform_positions to support jax (#955)
+- gh-908: Port `shapes.py` to support jax (#954)
+- gh-906: Port `observations.vmap_galactic_ecliptic` to array-api (#953)
+- gh-943: bump `array-api-compat` and fix tests (#944)
+- gh-186: add GLASS extensions to documentation (#927)
+- gh-905: Port lensing.py functions to array-api with jax (#925)
+- gh-921: pin `pre-commit` to oldest support Python version (#924)
+- gh-901: Port `algorithm.nnls` to support jax (#918)
+- gh-914: fix versions for array backends for 3.10 (#916)
+- gh-910: consistent definition of displacement (#911)
+- gh-880: Fix inconsistencies in the documentation rendering (#889)
+- gh-637: Use xpx.at in fields.cls2cov (#874)
+- gh-824: expose `glass.arraytools` module (#857)
+
 ## [2025.3] (2 Dec 2025)
 
 - gh-323: add `uv` support in `nox` and CI (#801)
@@ -221,6 +251,7 @@ All functional changes to the project are documented in this file.
 
 - Initial wide release for GLASS paper
 
+[2026.1]: https://github.com/glass-dev/glass/compare/v2025.3...v2026.1
 [2025.3]: https://github.com/glass-dev/glass/compare/v2025.2...v2025.3
 [2025.2]: https://github.com/glass-dev/glass/compare/v2025.1...v2025.2
 [2025.1]: https://github.com/glass-dev/glass/compare/v2024.2...v2025.1

docs/manual/releases.rst

@@ -4,6 +4,48 @@ Release notes
 
 These notes document the changes between individual *GLASS* releases.
 
+2026.1 (29 Jan 2026)
+--------------------
+
+* Added full Array API support for the following -
+
+    * :func:`glass.algorithm.nnls`
+    * :func:`glass.ellipticity_gaussian`
+    * :func:`glass.ellipticity_intnorm`
+    * :func:`glass.ellipticity_ryden04`
+    * :func:`glass.multi_plane_matrix`
+    * :func:`glass.multi_plane_weights`
+    * :func:`glass.positions_from_delta`
+    * :func:`glass.uniform_positions`
+    * :func:`glass.vmap_galactic_ecliptic`
+    * :mod:`glass.fields`
+    * :mod:`glass.galaxies`
+
+* The :func:`glass.displace` and :func:`glass.displacement` functions have
+  been fixed to be fully consistent with each other. Displacement is now
+  everywhere defined as on a compass. Going "east" means increasing longitude,
+  and going "west" means decreasing longitude.
+
+* The :func:`glass.positions_from_delta` function now only accepts callable
+  functions rather than also strings.
+
+* All ``healpix`` and ``healpy`` calls have been moved to a new module
+  :mod:`glass.healpix` to isolate Array API support.
+
+* Exposed the :mod:`glass.arraytools` module to users.
+
+* Added instructions to ``CONTRIBUTING.md`` on how the regression tests work.
+
+* Added documentation to GLASS on the extension packages in
+  ``docs/manual/extensions.rst``.
+
+* Fixed support for Python 3.10 in the CI and in ``pre-commit``.
+
+* Extended support to ``array-api-compat==1.13.0``.
+
+* Perform type checking with ``astral-sh/ty`` instead of ``mypy``.
+
+
 2025.3 (2 Dec 2025)
 --------------------