Getting ready for release 2.4.2

ANNOUNCE.md

@@ -1,17 +1,12 @@
-# Announcing C-Blosc2 2.4.1
+# Announcing C-Blosc2 2.4.2
 A fast, compressed and persistent binary data store library for C.
 
 ## What is new?
 
 The Blosc development team is happy to announce a new release of C-Blosc2.
-We are introducing a new pair of `blosc2_schunk_get_slice_buffer()` and
-`blosc2_schunk_set_slice_buffer()` functions for getting and setting slices
-from/to a super-chunk.
-
-Also, a new `blosc2_schunk_avoid_cframe_free()` for avoiding the free of a
-cframe when destroying a super-chunk.  Mainly useful for situations where you
-build a super-chunk out of an existing cframe, so you don't want it to be freed
-automatically.
+This is a maintenance release where we have fixed the BLOSC1_COMPAT mode,
+different issues with special chunks during cframe creation and last but not
+least, several optimizations for `blosc2_schunk_get_slice_buffer()`.
 
 C-Blosc2 should be backward compatible with C-Blosc, so you can start using
 it right away and increasingly start to use its new functionality, like the

RELEASE_NOTES.md

@@ -4,7 +4,13 @@ Release notes for C-Blosc2 2.4.2
 Changes from 2.4.1 to 2.4.2
 ===========================
 
-#XXX version-specific blurb XXX#
+* Fixed BLOSC1_COMPAT mode.  If the symbol `BLOSC1_COMPAT` is defined, one should actually get a correct map for the BLOSC1 API now.  Thanks to @MehdiChinoune for pointing this out.
+
+* Optimizations for `blosc2_schunk_get_slice_buffer()`.  Now more caution has been put in avoiding memcpy's as much as possible.
+
+* Now `blosc2_set_nthreads()` also modifies the schunk compression and decompression defaults.
+
+* Several other fixes, specially when converting schunks to cframe format.
 
 
 Changes from 2.4.0 to 2.4.1

include/blosc2.h

@@ -93,8 +93,8 @@ extern "C" {
 #define BLOSC2_VERSION_MINOR    4    /* for minor interface/format changes  */
 #define BLOSC2_VERSION_RELEASE  2    /* for tweaks, bug-fixes, or development */
 
-#define BLOSC2_VERSION_STRING   "2.4.2.dev"  /* string version.  Sync with above! */
-#define BLOSC2_VERSION_DATE     "$Date:: 2022-09-16 #$"    /* date version */
+#define BLOSC2_VERSION_STRING   "2.4.2"  /* string version.  Sync with above! */
+#define BLOSC2_VERSION_DATE     "$Date:: 2022-09-30 #$"    /* date version */
 
 
 /* The maximum number of dimensions for caterva arrays */