Getting ready for release 2.3.0

ANNOUNCE.rst

@@ -1,9 +1,12 @@
-Announcing Python-Blosc2 2.2.9
+Announcing Python-Blosc2 2.3.0
 ==============================
 
-This is a maintenance release, where we are introducing support for
-Python 3.8 and adding support for specifying (plugable) tuner parameters
-in cparams.  There have been some minor fixes too.
+This new minor release adds methods to handle NDArrays serialized into memory
+frames, and allows opening super-chunks stored in container files (like HDF5)
+by their offset.  C-Blosc2 is updated to the latest stable version, which
+provides support for AVX512 and fixes compatibility with ARM platforms
+(e.g. Raspberry Pi).  Cython 3 is now required for building, and other minor
+fixes and additions are included as well.
 
 For more info, you can have a look at the release notes in:
 
@@ -13,7 +16,8 @@ More docs and examples are available in the documentation site:
 
 https://www.blosc.org/python-blosc2/python-blosc2.html
 
-## What is it?
+What is it?
+-----------
 
 Python-Blosc2 is a Python package that wraps C-Blosc2, the newest version of
 the Blosc compressor.  Currently Python-Blosc2 already reproduces the API of
@@ -28,7 +32,8 @@ follows the same (or very similar) API as NumPy arrays, so it can be used
 as a drop-in replacement.  See the documentation for more details:
 https://www.blosc.org/python-blosc2/reference/ndarray_api.html
 
-## Sources repository
+Sources repository
+------------------
 
 The sources and documentation are managed through github services at:
 
@@ -38,8 +43,8 @@ c-blosc2 is distributed using the BSD license, see
 https://github.com/Blosc/python-blosc2/blob/main/LICENSE.txt
 for details.
 
-
-## Mastodon feed
+Mastodon feed
+-------------
 
 Please follow https://fosstodon.org/@Blosc2 to get informed about the latest
 developments.

RELEASE_NOTES.md

@@ -1,9 +1,26 @@
 # Release notes
 
-## Changes from 2.2.9 to 2.2.10
+## Changes from 2.2.9 to 2.3.0
 
-* New `NDArray.to_cframe()` method and `blosc2.ndarray_from_cframe()` function for
-  serializing and deserializing NDArrays to/from contiguous in-memory frames.
+* Require at least Cython 3 for building. Using previous versions worked but
+  error handling was not correct (wheels were being built with Cython 3
+  anyway).
+
+* New `NDArray.to_cframe()` method and `blosc2.ndarray_from_cframe()` function
+  for serializing and deserializing NDArrays to/from contiguous in-memory
+  frames. Thanks to Francesc Alted.
+
+* Add an optional `offset` argument to `blosc2.schunk.open()`, to access
+  super-chunks stored in containers like HDF5. Thanks to Ivan Vilata.
+
+* Assorted minor fixes to the blocksize/blockshape computation algorithm,
+  avoiding some cases where it resulted in values exceeding maximum
+  limits. Thanks to Ivan Vilata.
+
+* Updated to latest C-Blosc2 2.11.2. It adds AVX512 support for the bitshuffle
+  filter, fixes ARM and Raspberry Pi compatibility and assorted issues.
+
+* Add python-blosc2 package definition for Guix. Thanks to Ivan Vilata.
 
 ## Changes from 2.2.8 to 2.2.9
 

VERSION

@@ -1 +1 @@
-2.2.10.dev0
+2.3.0