Getting ready for release 3.9.0

Author: lshaw8317

ANNOUNCE.rst

@@ -4,21 +4,20 @@ Announcing Python-Blosc2 3.8.0
 This is a minor version release where we have aimed to make the first steps
 towards complying fully with the array-api standard:
 
-✅ C-Blosc2 internal library updated to latest 2.21.2.
+✅ C-Blosc2 internal library updated to latest 2.21.3.
 
-✅ numexpr version requirement pushed to 2.12.1 to incorporate
-``isnan``, ``isfinite``, ``isinf`` functions.
+✅ numexpr version requirement pushed to 2.3.0 to incorporate
+``round``, ``sign``, ``signbit``, ``copysign``, ``nextafter``, ``hypot``,
+``maximum``, ``minimum``, ``trunc``, ``log2``, ``//`` and bitwise AND/OR/XOR/NOT.
 
-✅ Indexing is now supported extensively and reasonably optimally for slices
-with negative steps, general boolean arrays and fancy indices, with both get/setitem having
-equal functionality. In PR #459 we extended the 1D fast path to general N-D,
-with consequent speedups. In PR #461 we allowed fancy indexing and general slicing
-with negative steps for set and getitem, with a memory-optimised path for setitem.
+✅ Enhanced linear algebra via ``tensordot``, extended ``matmul``, ``vecdot``, ``diagonal``,
+``outer``, as well as ``broadcast_to`` and ``meshgrid``.
+
+✅ Roughly 60 attributes and methods for the ``NDArray`` class, as well as functions, have
+been added to increase compliance with the array-api standard, with ufuncs now very well supported.
+
+✅ A subtle bug which caused ``arr = blosc2.expand_dims(arr)`` to fail has been fixed.
 
-✅ Various attributes and methods for the ``NDArray`` class, as well as functions, have
-been added to increase compliance with the array-api standard. In addition,
-linspace and arange functions have been made more numerically stable and now strictly
-comply even with difficult floating-point edge cases.
 
 You can think of Python-Blosc2 3.x as an extension of NumPy/numexpr that:
 

RELEASE_NOTES.md

@@ -1,9 +1,29 @@
 # Release notes
 
-## Changes from 3.8.0 to 3.8.1
+## Changes from 3.9.0 to 3.9.1
 
 XXX version-specific blurb XXX
 
+## Changes from 3.8.0 to 3.9.0
+Most changes come from PR #467 relating to array-api compliance.
+
+* C-Blosc2 internal library updated to latest 2.21.3, increasing MAX_DIMS from 8 to 16
+
+* numexpr version requirement pushed to 2.13.0 to incorporate
+``round``, ``sign``, ``signbit``, ``copysign``, ``nextafter``, ``hypot``,
+``maximum``, ``minimum``, ``trunc``, ``log2`` functions, as well as allow
+integer outputs for certain functions when integr arguments are passed.
+We also add floor division (``//``) and full dual bitwise (logical) AND, OR, XOR, NOT
+support for integer (bool) arrays.
+
+* Extended linear algebra functionality, offering generalised matrix multiplication
+for arrays of arbitrary dimension via ``tensordot`` and an improved ``matmul``. In addition,
+introduced ``vecdot``, ``diagonal`` and ``outer``, as well as useful indexing and associated functions such as ``take``, ``take_along_axis``, ``meshgrid`` and ``broadcast_to``.
+
+* Added many ufuncs and methods (around 60) to ``NDArray`` to bring the library into further alignment with the array-api. Introduced a chunkwise lazyudf paradigm which is very powerful in order to implement ``clip`` and ``logaddexp``.
+
+* Fixed a subtle but important bug for ``expand_dims`` (PR #479, PR #483) relating to reference counting for views.
+
 ## Changes from 3.7.2 to 3.8.0
 
 * C-Blosc2 internal library updated to latest 2.21.2.

pyproject.toml

@@ -41,7 +41,7 @@ dependencies = [
     "py-cpuinfo; platform_machine != 'wasm32'",
     "requests",
 ]
-version = "3.8.1.dev0"
+version = "3.9.0"
 [project.entry-points."array_api"]
 blosc2 = "blosc2"
 

src/blosc2/version.py

@@ -1,2 +1,2 @@
-__version__ = "3.8.1.dev0"
+__version__ = "3.9.0"
 __array_api_version__ = "2024.12"