Getting ready for release 2.2.0

Author: FrancescAlted

ANNOUNCE.rst

@@ -1,15 +1,10 @@
-Announcing Python-Blosc2 2.1.1
+Announcing Python-Blosc2 2.2.0
 ==============================
 
-We are happy to inform that we are introducing `NDArray`, a object for handling
-multidimensional arrays using compression. It includes:
-  - Data type handling (fully compatible with NumPy)
-  - Double partitioning
+We have added support for bytedelta, a new filter that normally leads to better compression ratios.
+We have blogged about bytedelta here: https://www.blosc.org/posts/bytedelta-enhance-compression-toolset/
 
-We have plenty of documentation on `blosc2.NDArray`:
-See examples at: https://github.com/Blosc/python-blosc2/tree/main/examples/ndarray
-NDarray docs at: https://www.blosc.org/python-blosc2/reference/ndarray_api.html
-Explanatory video on why double partitioning: https://youtu.be/LvP9zxMGBng
+We also have a short video on how bytedelta works: https://www.youtube.com/watch?v=5OXs7w2x6nw
 Also, see our blog on C-Blosc2 NDim counterpart: https://www.blosc.org/posts/blosc2-ndim-intro/
 
 For more info, you can have a look at the release notes in:

RELEASE_NOTES.md

@@ -1,8 +1,24 @@
 # Release notes
 
-## Changes from 2.1.1 to 2.1.2
+## Changes from 2.1.1 to 2.2.0
 
-XXX version-specific blurb XXX
+* New bytedelta filter.  We have blogged about this: https://www.blosc.org/posts/bytedelta-enhance-compression-toolset/.  See the examples/ndarray/bytedelta_filter.py for a sample script.  We also have a short video on how bytedelta works: https://www.youtube.com/watch?v=5OXs7w2x6nw
+
+* The compression defaults are changed to get a better balance between compression ratio, compression speed and decompression speed.  The new defaults are:
+
+  - `cparams.typesize = 8`
+  - `cparams.clevel = 1`
+  - `cparams.compcode = Codec.ZSTD`
+  - `filters = [Filter.SHUFFLE]`
+  - `splitmode = SplitMode.ALWAYS_SPLIT`
+
+  These changes have been based on the mentioned blog post above.
+
+* `dtype.itemsize` will have preference over typesize in cparams (as it was documented).
+
+* `blosc2.compressor_list(plugins=False)` do not list codec plugins by default now.  If you want to list plugins too, you need to pass `plugins=True`.
+
+* Internal C-Blosc2 updated to latest version (2.8.0).
 
 
 ## Changes from 2.0.0 to 2.1.1

VERSION

@@ -1 +1 @@
-2.2.0.pre0
+2.2.0