diff --git a/src/blosc2/README.rst b/src/blosc2/README.rst
index 759780d..918ab03 100644
--- a/src/blosc2/README.rst
+++ b/src/blosc2/README.rst
@@ -1,10 +1,6 @@
-========
-C-Blosc2
-========
-
-A fast, compressed and persistent data store library for C
-==========================================================
-
+======================================================================
+ C-Blosc2: A fast, compressed and persistent data store library for C
+======================================================================
 
 :Author: The Blosc Development Team
 :Contact: blosc@blosc.org
@@ -78,7 +74,7 @@ New features in C-Blosc2
 
 * **Efficient support for special values:** large sequences of repeated values can be represented with an efficient, simple and fast run-length representation, without the need to use regular codecs.  With that, chunks or super-chunks with values that are the same (zeros, NaNs or any value in general) can be built in constant time, regardless of the size.  This can be useful in situations where a lot of zeros (or NaNs) need to be stored (e.g. sparse matrices).
 
-* **Nice markup for documentation:** we are currently using a combination of Sphinx + Doxygen + Breathe for documenting the C-API.  See https://www.blosc.org/c-blosc2/c-blosc2.html.  Thanks to Alberto Sabater and Aleix Alcacer for contributing the support for this.
+* **Nice markup for documentation:** we are currently using a combination of Sphinx + Doxygen + Breathe for documenting the C-API.  See https://c-blosc2.readthedocs.io.  Thanks to Alberto Sabater and Aleix Alcacer for contributing the support for this.
 
 * **Plugin capabilities for filters and codecs:** we have a plugin register capability inplace so that the info about the new filters and codecs can be persisted and transmitted to different machines.  See https://github.com/Blosc/c-blosc2/blob/main/examples/urfilters.c for a self-contained example.  Thanks to the NumFOCUS foundation for providing a grant for doing this, and Oscar Griñón and Aleix Alcacer for the implementation.
 
diff --git a/src/blosc2/blosc/Makefile b/src/blosc2/blosc/Makefile
index c403724..2967fc0 100644
--- a/src/blosc2/blosc/Makefile
+++ b/src/blosc2/blosc/Makefile
@@ -33,14 +33,15 @@ PLATFORM = $(shell uname -s)
 DLLFLAG=-fPIC
 OMP=-fopenmp
 
-CPPOPT=-g -Wall -O3 -msse2 #-g -Wall -std=c99 # -DUSE_OS_TIMER
+CPPOPT=-g -Wall -O3 -msse2 -DHAVE_ZSTD -DHAVE_ZLIB -DHAVE_LZ4 $(DLLFLAG) #-g -Wall -std=c99 # -DUSE_OS_TIMER
 
 OUTPUTFLAG:=-o
 OBJSUFFIX=.o
 EXESUFFIX=.mex*
 
 FILES=bitshuffle-sse2 blosc2 blosc2-stdio blosclz delta directories fastcopy \
-      frame schunk sframe shuffle shuffle-sse2 stune timestamp trunc-prec
+      frame schunk sframe shuffle shuffle-generic bitshuffle-generic \
+      shuffle-sse2 stune timestamp trunc-prec
 
 ifeq ($(findstring CYGWIN,$(PLATFORM)), CYGWIN)
   ifeq ($(findstring x86_64,$(ARCH)), x86_64)
diff --git a/src/blosc2/blosc/blosc2.c b/src/blosc2/blosc/blosc2.c
index c666d6c..9eab6ad 100644
--- a/src/blosc2/blosc/blosc2.c
+++ b/src/blosc2/blosc/blosc2.c
@@ -3994,7 +3994,7 @@ int register_filter_private(blosc2_filter *filter) {
     }
     /* This condition can never be fulfilled
     if (filter->id > BLOSC2_USER_REGISTERED_FILTERS_STOP) {
-        BLOSC_TRACE_ERROR("The id must be less than or equal to %d", BLOSC2_USER_REGISTERED_FILTERS_STOP);
+        BLOSC_TRACE_ERROR("The id must be lower or equal than %d", BLOSC2_USER_REGISTERED_FILTERS_STOP);
         return BLOSC2_ERROR_FAILURE;
     }
     */
diff --git a/src/blosc2/include/blosc2.h b/src/blosc2/include/blosc2.h
index d3f4309..42262c3 100644
--- a/src/blosc2/include/blosc2.h
+++ b/src/blosc2/include/blosc2.h
@@ -91,9 +91,9 @@ extern "C" {
 /* Version numbers */
 #define BLOSC2_VERSION_MAJOR    2    /* for major interface/format changes  */
 #define BLOSC2_VERSION_MINOR    3    /* for minor interface/format changes  */
-#define BLOSC2_VERSION_RELEASE  2    /* for tweaks, bug-fixes, or development */
+#define BLOSC2_VERSION_RELEASE  1    /* for tweaks, bug-fixes, or development */
 
-#define BLOSC2_VERSION_STRING   "2.3.2.dev"  /* string version.  Sync with above! */
+#define BLOSC2_VERSION_STRING   "2.3.1"  /* string version.  Sync with above! */
 #define BLOSC2_VERSION_DATE     "$Date:: 2022-08-24 #$"    /* date version */