Update HDF5 version after 1.10.10 release. (#2681)

* Update HDF5 version after 1.10.10 release.
Update so numbers to match 1.10.10 release so numbers.
Update HISTORY-1_10.txt.
Clean RELEASE.txt entries.

* Missed one version change.

10 files changed, 1178 insertions, 311 deletions

diff --git a/README.md b/README.md
index abaa0fc..e2436af 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-HDF5 version 1.10.10-2 currently under development
+HDF5 version 1.10.11-1 currently under development
 
 ![HDF5 Logo](doxygen/img/HDF5.png)
 
diff --git a/c++/src/cpp_doc_config b/c++/src/cpp_doc_config
index b167bf9..a70f11e 100644
--- a/c++/src/cpp_doc_config
+++ b/c++/src/cpp_doc_config
@@ -38,7 +38,7 @@ PROJECT_NAME           =
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = "1.10.10-2, currently under development"
+PROJECT_NUMBER         = "1.10.11-1, currently under development"
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/config/cmake/scripts/HDF5config.cmake b/config/cmake/scripts/HDF5config.cmake
index ed47247..e3f66e0 100755
--- a/config/cmake/scripts/HDF5config.cmake
+++ b/config/cmake/scripts/HDF5config.cmake
@@ -37,8 +37,8 @@ cmake_minimum_required (VERSION 3.12)
 #     CTEST_SOURCE_NAME  -  source folder
 ##############################################################################
 
-set (CTEST_SOURCE_VERSION "1.10.10")
-set (CTEST_SOURCE_VERSEXT "-2")
+set (CTEST_SOURCE_VERSION "1.10.11")
+set (CTEST_SOURCE_VERSEXT "-1")
 
 ##############################################################################
 # handle input parameters to script.
diff --git a/config/lt_vers.am b/config/lt_vers.am
index 337a829..701f532 100644
--- a/config/lt_vers.am
+++ b/config/lt_vers.am
@@ -15,9 +15,9 @@
 ## See libtool versioning documentation online.
 ## After making changes, run bin/reconfigure to update other configure related
 ## files like Makefile.in.
-LT_VERS_INTERFACE = 106
-LT_VERS_REVISION = 2
-LT_VERS_AGE = 3
+LT_VERS_INTERFACE = 107
+LT_VERS_REVISION = 0
+LT_VERS_AGE = 4
 
 ## If the API changes *at all*, increment LT_VERS_INTERFACE and
 ## reset LT_VERS_REVISION to 0.
@@ -39,30 +39,30 @@ LT_VERS_AGE = 3
 ##
 ## Version numbers for wrapper shared library files.
 LT_CXX_VERS_INTERFACE = 107
-LT_CXX_VERS_REVISION = 1
+LT_CXX_VERS_REVISION = 2
 LT_CXX_VERS_AGE = 4
 
 LT_F_VERS_INTERFACE = 103
-LT_F_VERS_REVISION = 2
+LT_F_VERS_REVISION = 3
 LT_F_VERS_AGE = 1
 
 LT_HL_VERS_INTERFACE = 101
-LT_HL_VERS_REVISION = 6
+LT_HL_VERS_REVISION = 7
 LT_HL_VERS_AGE = 1
 
 LT_HL_CXX_VERS_INTERFACE = 101
-LT_HL_CXX_VERS_REVISION = 7
+LT_HL_CXX_VERS_REVISION = 8
 LT_HL_CXX_VERS_AGE = 1
 
 LT_HL_F_VERS_INTERFACE = 100
-LT_HL_F_VERS_REVISION = 8
+LT_HL_F_VERS_REVISION = 9
 LT_HL_F_VERS_AGE = 0
 
-LT_JAVA_VERS_INTERFACE = 106
+LT_JAVA_VERS_INTERFACE = 108
 LT_JAVA_VERS_REVISION = 0
-LT_JAVA_VERS_AGE = 6
+LT_JAVA_VERS_AGE = 8
 
 LT_TOOLS_VERS_INTERFACE = 102
-LT_TOOLS_VERS_REVISION = 2
+LT_TOOLS_VERS_REVISION = 3
 LT_TOOLS_VERS_AGE = 0
 
diff --git a/configure.ac b/configure.ac
index 06d0178..e1849c5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,7 +22,7 @@ AC_PREREQ([2.69])
 ## NOTE: Do not forget to change the version number here when we do a
 ## release!!!
 ##
-AC_INIT([HDF5], [1.10.10-2], [help@hdfgroup.org])
+AC_INIT([HDF5], [1.10.11-1], [help@hdfgroup.org])
 
 AC_CONFIG_SRCDIR([src/H5.c])
 AC_CONFIG_HEADERS([src/H5config.h])
diff --git a/java/test/TestH5.java b/java/test/TestH5.java
index d0ff2e0..016c471 100644
--- a/java/test/TestH5.java
+++ b/java/test/TestH5.java
@@ -350,7 +350,7 @@ public class TestH5 {
     @Test
     public void testH5check_version()
     {
-        int majnum = 1, minnum = 10, relnum = 10;
+        int majnum = 1, minnum = 10, relnum = 11;
 
         try {
             H5.H5check_version(majnum, minnum, relnum);
diff --git a/release_docs/HISTORY-1_10.txt b/release_docs/HISTORY-1_10.txt
index 9634832..b330775 100644
--- a/release_docs/HISTORY-1_10.txt
+++ b/release_docs/HISTORY-1_10.txt
@@ -3,6 +3,8 @@ HDF5 History
 
 This file contains development history of the HDF5 1.10 branch
 
+12.      Release Information for hdf5-1.10.10
+11.      Release Information for hdf5-1.10.9
 10.      Release Information for hdf5-1.10.8
 09.      Release Information for hdf5-1.10.7
 08.      Release Information for hdf5-1.10.6
@@ -16,6 +18,1145 @@ This file contains development history of the HDF5 1.10 branch
 
 [Search on the string '%%%%' for section breaks of each release.]
 
+%%%%1.10.10%%%%
+
+HDF5 version 1.10.10 released on 2023-03-31
+================================================================================
+
+
+INTRODUCTION
+============
+
+This document describes the differences between this release and the previous
+HDF5 release. It contains information on the platforms tested and known
+problems in this release. For more details check the HISTORY*.txt files in the
+HDF5 source.
+
+Note that documentation in the links below will be updated at the time of each
+final release.
+
+Links to HDF5 documentation can be found on The HDF5 web page:
+
+     https://portal.hdfgroup.org/display/HDF5/HDF5
+
+The official HDF5 releases can be obtained from:
+
+     https://www.hdfgroup.org/downloads/hdf5/
+
+Changes from release to release and new features in the HDF5-1.10.x release series
+can be found at:
+
+     https://portal.hdfgroup.org/display/HDF5/Release+Specific+Information
+
+If you have any questions or comments, please send them to the HDF Help Desk:
+
+     help@hdfgroup.org
+
+
+CONTENTS
+========
+
+- New Features
+- Support for New Platforms and Languages
+- Bug Fixes since HDF5-1.10.9
+- Platforms Tested
+- Known Problems
+- CMake vs. Autotools installations
+
+
+New Features
+============
+
+    Configuration:
+    -------------
+    - Removal of dmalloc support
+
+      The ability to build with dmalloc support has been removed along with
+      the following configure options:
+
+      Autotools:
+          --with-dmalloc=
+
+      CMake:
+          HDF5_ENABLE_USING_DMALLOC
+
+      (DER - 2023/03/17)
+      
+    - Allow parallel and threadsafe to be built
+
+      In the past, we required --enable-unsupported (Autotools) or
+      ALLOW_UNSUPPORTED (CMake) in order to build the parallel library with
+      thread-safety support. The parallel, thread-safe library can now be
+      built without these options.
+
+      (DER - 2023/03/17)
+
+    - Added new option to build libaec and zlib inline with CMake.
+
+      Using the CMake FetchContent module, the external filters can populate
+      content at configure time via any method supported by the ExternalProject
+      module. Whereas ExternalProject_Add() downloads at build time, the
+      FetchContent module makes content available immediately, allowing the
+      configure step to use the content in commands like add_subdirectory(),
+      include() or file() operations.
+
+      The HDF options (and defaults) for using this are:
+          BUILD_SZIP_WITH_FETCHCONTENT:BOOL=OFF
+          LIBAEC_USE_LOCALCONTENT:BOOL=OFF
+          BUILD_ZLIB_WITH_FETCHCONTENT:BOOL=OFF
+          ZLIB_USE_LOCALCONTENT:BOOL=OFF
+
+      The CMake variables to control the path and file names:
+          LIBAEC_TGZ_ORIGPATH:STRING
+          LIBAEC_TGZ_ORIGNAME:STRING
+          ZLIB_TGZ_ORIGPATH:STRING
+          ZLIB_TGZ_ORIGNAME:STRING
+
+      See the CMakeFilters.cmake and config/cmake/cacheinit.cmake files for usage.
+
+      (ADB - 2023/02/21)
+
+    - Add new CMake configuration variable HDF5_USE_GNU_DIRS
+
+      HDF5_USE_GNU_DIRS (default OFF) selects the use of GNU Coding Standard install
+      directory variables by including the CMake module, GNUInstallDirs(see CMake
+      documentation for details). The HDF_DIR_PATHS macro in the HDFMacros.cmake file
+      sets various PATH variables for use during the build, test and install processes.
+      By default, the historical settings for these variables will be used.
+
+      (ADB - 2022/10/21, GH-2175, GH-1716)
+
+    - Correct the usage of CMAKE_Fortran_MODULE_DIRECTORY and where to
+      install Fortran mod files.
+
+      The Fortran modules files, ending in .mod are files describing a
+      Fortran 90 (and above) module API and ABI. These are not like C
+      header files describing an API, they are compiler dependent and
+      arch dependent, and not easily readable by a human being. They are
+      nevertheless searched for in the includes directories by gfortran
+      (in directories specified with -I).
+
+      Autotools configure uses the -fmoddir option to specify the folder.
+      CMake will use "mod" folder by default unless overridden by the CMake
+      variable; HDF5_INSTALL_MODULE_DIR.
+
+      (ADB - 2022/07/21)
+
+
+    Library:
+    --------
+    -
+
+
+    Parallel Library:
+    -----------------
+    -
+
+
+    Fortran Library:
+    ----------------
+    -
+
+
+    C++ Library:
+    ------------
+    -
+
+
+    Java Library:
+    -------------
+    - HDF5GroupInfo class has been deprecated.
+
+      This class assumes that an object can contain four values which uniquely identify an
+      object among those HDF5 files which are open. This is no longer valid in future
+      HDF5 releases.
+
+      (ADB - 2023/03/27)
+
+    - Added version of H5Rget_name to return the name as a Java string.
+
+      Other functions that get_name process the get_size then get the name
+      within the JNI implementation. Now H5Rget_name has a H5Rget_name_string.
+
+      (ADB - 2022/07/12)
+
+    - Added reference support to H5A and H5D read write vlen JNI functions.
+
+      Added the implementation to handle VL references as an Array of Lists
+      of byte arrays.
+
+      The JNI wrappers translate the Array of Lists to/from the hvl_t vlen
+      structures. The wrappers use the specified datatype arguments for the
+      List type translation, it is expected that the Java type is correct.
+
+      (ADB - 2022/07/11, HDFFV-11318)
+
+    - H5A and H5D read write vlen JNI functions were incorrect.
+
+      Corrected the vlen function implementations for the basic primitive types.
+      The VLStrings functions now correctly use the implementation that had been
+      the VL functions. (VLStrings functions did not have an implementation.)
+      The new VL functions implementation now expect an Array of Lists between
+      Java and the JNI wrapper. 
+
+      The JNI wrappers translate the Array of Lists to/from the hvl_t vlen
+      structures. The wrappers use the specified datatype arguments for the
+      List type translation, it is expected that the Java type is correct.
+
+      (ADB - 2022/07/07, HDFFV-11310)
+
+    - H5A and H5D read write JNI functions had flawed vlen datatype check.
+
+      Adapted tools function for JNI utils file. This reduced multiple calls
+      to a single check and variable. The variable can then be used to call 
+      the H5Treclaim function. Adjusted existing test and added new test.
+
+      (ADB - 2022/06/22)
+
+
+    Tools:
+    ------
+    - Building h5perf/h5perf_serial in "standalone mode" has been removed
+
+      Building h5perf separately from the library was added circa 2008
+      in HDF5 1.6.8. It's unclear what purpose this serves and the current
+      implementation is currently broken. The existing files require
+      H5private.h and the symbols we use to determine how the copied
+      platform-independence scheme should be used come from H5pubconf.h,
+      which may not match the compiler being used to build standalone h5perf.
+
+      Due to the maintenance overhead and lack of a clear use case, support
+      for building h5perf and h5perf_serial separately from the HDF5 library
+      has been removed.
+
+      (DER - 2023/03/20)
+
+    - The perf tool has been removed
+
+      The small `perf` tool didn't really do anything special and the name
+      conflicts with gnu's perf tool.
+
+      (DER - 2023/03/20, GitHub #1787)
+
+
+    High-Level APIs:
+    ----------------
+    -
+
+
+    C Packet Table API:
+    -------------------
+    -
+
+
+    Internal header file:
+    ---------------------
+    -
+
+
+    Documentation:
+    --------------
+    -
+
+
+Support for new platforms, languages and compilers
+==================================================
+    -
+
+
+Bug Fixes since HDF5-1.10.9 release
+===================================
+    Library
+    -------
+    - Fixed a memory corruption issue that can occur when reading
+      from a dataset using a hyperslab selection in the file
+      dataspace and a point selection in the memory dataspace
+
+      When reading from a dataset using a hyperslab selection in
+      the dataset's file dataspace and a point selection in the
+      dataset's memory dataspace where the file dataspace's "rank"
+      is greater than the memory dataspace's "rank", memory corruption
+      could occur due to an incorrect number of selection points
+      being copied when projecting the point selection onto the
+      hyperslab selection's dataspace.
+
+      (JTH - 2023/03/23)
+
+    - Fix CVE-2021-37501 / GHSA-rfgw-5vq3-wrjf
+
+      Check for overflow when calculating on-disk attribute data size.
+
+      A bogus hdf5 file may contain dataspace messages with sizes
+      which lead to the on-disk data sizes to exceed what is addressable.
+      When calculating the size, make sure, the multiplication does not
+      overflow.
+      The test case was crafted in a way that the overflow caused the
+      size to be 0.
+
+      (EFE - 2023/02/11 GH-2458)
+
+    - Fixed an issue with variable length attributes
+
+      Previously, if a variable length attribute was held open while its file
+      was opened through another handle, the same attribute was opened through
+      the second file handle, and the second file and attribute handles were
+      closed, attempting to write to the attribute through the first handle
+      would cause an error.
+
+      (NAF - 2022/10/24)
+
+    - Fixed an issue with hyperslab selections
+
+      Previously, when combining hyperslab selections, it was possible for the
+      library to produce an incorrect combined selection.
+
+      (NAF - 2022/09/25)
+
+    - Fixed an issue with attribute type conversion with compound datatypes
+
+      Previously, when performing type conversion for attribute I/O with a
+      compound datatype, the library would not fill the background buffer with
+      the contents of the destination, potentially causing data to be lost when
+      only writing to a subset of the compound fields.
+
+      (NAF - 2022/08/22, GitHub #2016)
+
+    - Modified H5Fstart_swmr_write() to preserve DAPL properties
+
+      Internally, H5Fstart_swmr_write() closes and reopens the file in question
+      as part of its process for making the file SWMR-safe.  Previously, when
+      the library reopened the file it would simply use the default access
+      properties.  Modified the library to instead save these properties and use
+      them when reopening the file.
+
+      (NAF - 2022/07/18, HDFFV-11308)
+
+    - Converted an assertion on (possibly corrupt) file contents to a normal
+      error check
+
+      Previously, the library contained an assertion check that a read superblock
+      doesn't contain a superblock extension message when the superblock
+      version < 2. When a corrupt HDF5 file is read, this assertion can be triggered
+      in debug builds of HDF5. In production builds, this situation could cause
+      either a library error or a crash, depending on the platform.
+
+      (JTH - 2022/07/08, HDFFV-11316, HDFFV-11317)
+
+    - Memory leak 
+    
+      A memory leak was observed with variable-length fill value in 
+      H5O_fill_convert() function in H5Ofill.c. The leak is
+      manifested by running valgrind on test/set_extent.c.
+
+      Previously, fill->buf is used for datatype conversion 
+      if it is large enough and the variable-length information 
+      is therefore lost.  A buffer is now allocated regardless 
+      so that the element in fill->buf can later be reclaimed.
+
+      (VC - 2022/10/10, HDFFV-10840)
+ 
+
+    Java Library
+    ------------
+    -
+
+
+    Configuration
+    -------------
+    - Correct the CMake generated pkg-config file
+
+      The pkg-config file generated by CMake had the order and placement of the
+      libraries wrong. Also added support for debug library names.
+
+      Changed the order of Libs.private libraries so that dependencies come after
+      dependents. Did not move the compression libraries into Requires.private
+      because there was not a way to determine if the compression libraries had
+      supported pkconfig files. Still recommend that the CMake config file method
+      be used for building projects with CMake.
+
+      (ADB - 2023/02/16 GH-1546,GH-2259)
+
+    - Remove Javadoc generation
+
+      The use of doxygen now supersedes the requirement to build javadocs. We do not
+      have the resources to continue to support two documentation methods and have
+      chosen doxygen as our standard.
+
+      (ADB - 2022/12/19)
+
+    - Change the default for building the high-level tools
+
+      The gif2hdf5 and hdf2gif high-level tools are deprecated and will be removed
+      in a future release. The default build setting for them have been changed from enabled
+      to disabled. A user can enable the build of these tools if needed.
+          autotools:   --enable-hlgiftools
+          cmake:       HDF5_BUILD_HL_GIF_TOOLS=ON
+
+      (ADB - 2022/12/16)
+
+    - Change the settings of the *pc files to use the correct format
+
+      The pkg-config files generated by CMake uses incorrect syntax for the 'Requires'
+      settings. Changing the set to use 'lib-name = version' instead 'lib-name-version'
+      fixes the issue
+
+      (ADB - 2022/12/06 HDFFV-11355)
+
+    - Move MPI libraries link from PRIVATE to PUBLIC
+
+      The install dependencies were not including the need for MPI libraries when
+      an application or library was built with the C library. Also updated the
+      CMake target link command to use the newer style MPI::MPI_C link variable.
+
+      (ADB - 2022/20/27)
+
+
+    Tools
+    -----
+    - Fix h5repack to only print output when verbose option is selected
+
+      When timing option was added to h5repack, the check for verbose was
+      incorrectly implemented.
+
+      (ADB -  2022/12/02, GH #2270)
+
+
+    Performance
+    -------------
+    -
+
+
+    Fortran API
+    -----------
+    -
+
+
+    High-Level Library
+    ------------------
+    -
+
+
+    Fortran High-Level APIs
+    -----------------------
+    -
+
+
+    Documentation
+    -------------
+    - Doxygen updated with recent Fortran changes.
+
+      (ADB - 2022/09/09)
+
+
+    F90 APIs
+    --------
+    -
+
+
+    C++ APIs
+    --------
+    - 
+
+
+    Testing
+    -------
+    -
+
+
+Support for New Platforms and Languages
+=======================================
+    - Added support for IBM Power 8 GNU/Linux 3.10.0 ppc64be with GCC 4.8.5,
+          xlc/xlC 13.1 and xlf 15.1
+    - Added support for Ubuntu 22.04 GNU/Linux5.15.0-1026-aws with GCC 11.3.0,
+          clang 14.0.0
+    - Added support for CentOS8 GNU/Linux 4.18.0-348.7.1.el8_5 with GCC 8.5.0,
+          clang 12.0.1
+    - Added support for macOS Apple M1 11.6 with Apple clang 12.0.5,
+          GNU Fortran 11.1.0, Intel icc/icpc/ifort 2021.3.0
+    - Added support for macOS Big Sur 11.3.1 with Apple clang 12.0.5,
+          GNU Fortran 10.2.0, Intel icc/icpc/ifort version 2021.2.0
+    - Added support for Visual Studio 2022 w/ clang 15.0.1
+          with MSVC-like command-line (C/C++ only - cmake),
+          Intel C/C++/Fortran oneAPI 2022 (cmake)
+
+
+Platforms Tested
+===================
+
+    Linux 5.15.0-1026-aws             gcc (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0
+    #30-Ubuntu SMP x86_64 GNU/Linux   GNU Fortran (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0
+    Ubuntu 22.04                      Ubuntu clang version 14.0.0-1ubuntu1
+                                      (cmake and autotools)
+
+    Linux 5.13.0-1031-aws             GNU gcc (GCC) 9.4.0-1ubuntu1
+    #35-Ubuntu SMP x86_64 GNU/Linux   GNU Fortran (GCC) 9.4.0-1ubuntu1
+    Ubuntu 20.04                      clang version 10.0.0-4ubuntu1
+                                      (cmake and autotools)
+
+    Linux 4.18.0-348.7.1.el8_5        gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-4)
+    #1 SMP x86_64 GNU/Linux           GNU Fortran (GCC) 8.5.0 20210514 (Red Hat 8.5.0-4)
+    CentOS8                           clang version 12.0.1 (Red Hat 12.0.1)
+                                      (cmake and autotools)
+
+    Linux-4.14.0-115.21.2             spectrum-mpi/rolling-release
+    #1 SMP ppc64le GNU/Linux              clang 12.0.1, 14.0.5
+    (lassen)                              GCC 8.3.1
+                                          XL 16.1.1.2, 2021.09.22, 2022.08.05
+                                      (cmake)
+
+    Linux 3.10.0-1160.36.2.el7.ppc64  gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
+    #1 SMP ppc64 GNU/Linux            g++ (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
+    (echidna)                         GNU Fortran (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
+                                      IBM XL C/C++ V13.1
+                                      IBM XL Fortran V15.1
+
+    Linux 3.10.0-327.10.1.el7     GNU C (gcc), Fortran (gfortran), C++ (g++)
+    #1 SMP x86_64 GNU/Linux       compilers:
+    (jelly/kituo/moohan)          Version 4.8.5 20150623 (Red Hat 4.8.5-39)
+                                     Versions 4.9.3, 5.3.0, 6.3.0, 7.2.0
+                                              8.3.0, 9.1.0, 10.2.0
+                                  Intel(R) C (icc), C++ (icpc), Fortran (icc)
+                                  compilers:
+                                     Version 17.0.0.098 Build 20160721
+                                  MPICH 3.1.4 built with GCC 4.9.3, 3.3 built with GCC 7.2.0
+                                  OpenMPI 3.1.3, 4.0.0 compiled with GCC 7.2.0
+                                  NAG Fortran Compiler Release 7.0(Yurakuchho) Build 7011
+                                  NVIDIA C, Fortran, C++ for 64-bit target on
+                                      x86_64 Linux -tp haswell;
+                                         Version 22.5-0
+                                      (autotools and cmake)
+
+    Linux-3.10.0-1160.0.0.1chaos  openmpi-4.1.2
+    #1 SMP x86_64 GNU/Linux           clang 6.0.0, 11.0.1
+    (quartz)                          GCC 7.3.0, 8.1.0
+                                      Intel 19.0.4, 2022.2, oneapi.2022.2
+
+    Linux-3.10.0-1160.59.1.1chaos     openmpi/4.1
+    #1 SMP x86_64 GNU/Linux              Intel/19.1, 21.3.0, 22.2.0
+    (chama)                           (cmake)
+ 
+    macOS Apple M1 11.6               Apple clang version 12.0.5 (clang-1205.0.22.11)
+    Darwin 20.6.0 arm64               gfortran GNU Fortran (Homebrew GCC 11.2.0) 11.1.0
+    (macmini-m1)                      Intel icc/icpc/ifort version 2021.3.0 202106092021.3.0 20210609
+
+    macOS Big Sur 11.3.1              Apple clang version 12.0.5 (clang-1205.0.22.9)
+    Darwin 20.4.0 x86_64              gfortran GNU Fortran (Homebrew GCC 10.2.0_3) 10.2.0
+    (bigsur-1)                        Intel icc/icpc/ifort version 2021.2.0 20210228
+
+    macOS High Sierra 10.13.6         Apple LLVM version 10.0.0 (clang-1000.10.44.4)
+    64-bit                            gfortran GNU Fortran (GCC) 6.3.0
+    (bear)                            Intel icc/icpc/ifort version 19.0.4.233 20190416
+
+    macOS Sierra 10.12.6              Apple LLVM version 9.0.0 (clang-900.39.2)
+    64-bit                            gfortran GNU Fortran (GCC) 7.4.0
+    (kite)                            Intel icc/icpc/ifort version 17.0.2
+
+    Mac OS X El Capitan 10.11.6       Apple clang version 7.3.0 from Xcode 7.3
+    64-bit                            gfortran GNU Fortran (GCC) 5.2.0
+    (osx1011test)                     Intel icc/icpc/ifort version 16.0.2
+
+    Linux 2.6.32-573.22.1.el6     GNU C (gcc), Fortran (gfortran), C++ (g++)
+    #1 SMP x86_64 GNU/Linux       compilers:
+    (platypus)                    Version 4.4.7 20120313
+                                     Versions 4.9.3, 5.3.0, 6.2.0
+                                  MPICH 3.1.4 compiled with GCC 4.9.3
+
+    Windows 10 x64                Visual Studio 2015 w/ Intel C/C++/Fortran 18 (cmake)
+                                  Visual Studio 2017 w/ Intel C/C++/Fortran 19 (cmake)
+                                  Visual Studio 2019 w/ clang 12.0.0
+                                      with MSVC-like command-line (C/C++ only - cmake)
+                                  Visual Studio 2019 w/ Intel C/C++/Fortran oneAPI 2022 (cmake)
+                                  Visual Studio 2022 w/ clang 15.0.1
+                                      with MSVC-like command-line (C/C++ only - cmake)
+                                  Visual Studio 2022 w/ Intel C/C++/Fortran oneAPI 2022 (cmake)
+                                  Visual Studio 2019 w/ MSMPI 10.1 (C only - cmake)
+
+
+Known Problems
+==============
+    The function prototype for H5Treclaim was mistakenly added to code for HDF5
+    1.10.9;  however no implementation code was added.  This prototype has been
+    removed, resulting in a source incompatibility for shared library versions 
+    between HDF5 versions 1.10.10 and 1.10.9, but not binary incompatibility 
+    since the function was not implemented.
+
+    Setting a variable-length dataset fill value will leak the memory allocated
+    for the p field of the hvl_t struct. A fix is in progress for this.
+    HDFFV-10840
+
+    CMake files do not behave correctly with paths containing spaces.
+    Do not use spaces in paths because the required escaping for handling spaces
+    results in very complex and fragile build files.
+    ADB - 2019/05/07
+
+    At present, metadata cache images may not be generated by parallel
+    applications.  Parallel applications can read files with metadata cache
+    images, but since this is a collective operation, a deadlock is possible
+    if one or more processes do not participate.
+
+    Two tests fail attempting collective writes with OpenMPI 3.0.0/GCC-7.2.0-2.29:
+        testphdf5 (ecdsetw, selnone, cchunk1, cchunk3, cchunk4, and actualio)
+        t_shapesame (sscontig2)
+
+    CPP ptable test fails on both VS2017 and VS2019 with Intel compiler, JIRA
+    issue: HDFFV-10628.  This test will pass with VS2015 with Intel compiler.
+
+    The subsetting option in ph5diff currently will fail and should be avoided.
+    The subsetting option works correctly in serial h5diff.
+
+    Known problems in previous releases can be found in the HISTORY*.txt files
+    in the HDF5 source. Please report any new problems found to
+    help@hdfgroup.org.
+
+
+CMake vs. Autotools installations
+=================================
+While both build systems produce similar results, there are differences.
+Each system produces the same set of folders on linux (only CMake works
+on standard Windows); bin, include, lib and share. Autotools places the
+COPYING and RELEASE.txt file in the root folder, CMake places them in
+the share folder.
+
+The bin folder contains the tools and the build scripts. Additionally, CMake
+creates dynamic versions of the tools with the suffix "-shared". Autotools
+installs one set of tools depending on the "--enable-shared" configuration
+option.
+  build scripts
+  -------------
+  Autotools: h5c++, h5cc, h5fc
+  CMake: h5c++, h5cc, h5hlc++, h5hlcc
+
+The include folder holds the header files and the fortran mod files. CMake
+places the fortran mod files into separate shared and static subfolders,
+while Autotools places one set of mod files into the include folder. Because
+CMake produces a tools library, the header files for tools will appear in
+the include folder.
+
+The lib folder contains the library files, and CMake adds the pkgconfig
+subfolder with the hdf5*.pc files used by the bin/build scripts created by
+the CMake build. CMake separates the C interface code from the fortran code by
+creating C-stub libraries for each Fortran library. In addition, only CMake
+installs the tools library. The names of the szip libraries are different
+between the build systems.
+
+The share folder will have the most differences because CMake builds include
+a number of CMake specific files for support of CMake's find_package and support
+for the HDF5 Examples CMake project.
+
+The issues with the gif tool are:
+    HDFFV-10592 CVE-2018-17433
+    HDFFV-10593 CVE-2018-17436
+    HDFFV-11048 CVE-2020-10809
+These CVE issues have not yet been addressed and can be avoided by not building
+the gif tool. Disable building the High-Level tools with these options:
+    autotools:   --disable-hltools
+    cmake:       HDF5_BUILD_HL_TOOLS=OFF
+
+
+
+%%%%1.10.9%%%%
+
+HDF5 version 1.10.9 released on 2022-05-25
+================================================================================
+
+
+INTRODUCTION
+============
+
+This document describes the differences between this release and the previous
+HDF5 release in the same series. It contains information on the platforms tested
+and known problems in this release. For more details check the HISTORY*.txt
+files in the HDF5 source.
+
+Note that documentation in the links below will be updated at the time of each
+final release.
+
+Links to HDF5 documentation can be found on The HDF5 web page:
+
+     https://portal.hdfgroup.org/display/HDF5/HDF5
+
+The official HDF5 releases can be obtained from:
+
+     https://www.hdfgroup.org/downloads/hdf5/
+
+Changes from Release to Release and New Features in the HDF5-1.10.x release series
+can be found at:
+
+     https://portal.hdfgroup.org/display/HDF5/Software+Changes+from+Release+to+Release+for+HDF5-1.10
+
+Please send any questions or comments to the HDF Help Desk:
+
+     help@hdfgroup.org
+
+
+CONTENTS
+========
+
+- New Features
+- Support for new platforms and languages
+- Bug Fixes since HDF5-1.10.8
+- Platforms Tested
+- Known Problems
+- CMake vs. Autotools installations
+
+
+New Features
+============
+
+    Configuration:
+    -------------
+    - Added new option to the h5cc scripts produced by CMake.
+
+      Add -showconfig option to h5cc scripts to cat the 
+      libhdf5-settings to the standard output.
+
+      (ADB - 2022/03/11)
+
+    - HDF5 memory allocation sanity checking is now off by default for
+      Autotools debug builds
+
+      HDF5 can be configured to perform sanity checking on internal memory
+      allocations by adding heap canaries to these allocations. However,
+      enabling this option can cause issues with external filter plugins
+      when working with (reallocating/freeing/allocating and passing back)
+      buffers.
+
+      Previously, this option was off by default for all CMake build types,
+      but only off by default for non-debug Autotools builds. Since debug
+      is the default build mode for HDF5 when built from source with
+      Autotools, this can result in surprising segfaults that don't occur
+      when an application is built against a release version of HDF5.
+      Therefore, this option is now off by default for all build types
+      across both CMake and Autotools.
+
+      (JTH - 2022/03/01)
+
+    - Refactored the utils folder.
+
+      Added subfolder test and moved the 'swmr_check_compat_vfd.c file'
+      from test into utils/test. Deleted the duplicate swmr_check_compat_vfd.c
+      file in hl/tools/h5watch folder. Also fixed vfd check options.
+
+      (ADB - 2021/10/18)
+
+    - Changed autotools and CMake configurations to derive both
+      compilation warnings-as-errors and warnings-only-warn configurations
+      from the same files, 'config/*/*error*'.  Removed redundant files
+      'config/*/*noerror*'.
+
+      (DCY - 2021/09/29)
+
+
+    Library:
+    --------
+    - Several improvements to parallel compression feature, including:
+
+      * Improved support for collective I/O (for both writes and reads)
+
+      * Significant reduction of memory usage for the feature as a whole
+
+      * Reduction of copying of application data buffers passed to H5Dwrite
+
+      * Addition of support for incremental file space allocation for filtered
+        datasets created in parallel. Incremental file space allocation is the
+        default for these types of datasets (early file space allocation is
+        also still supported), while early file space allocation is still the
+        default (and only supported allocation time) for unfiltered datasets
+        created in parallel. Incremental file space allocation should help with
+        parallel HDF5 applications that wish to use fill values on filtered
+        datasets, but would typically avoid doing so since dataset creation in
+        parallel would often take an excessive amount of time. Since these
+        datasets previously used early file space allocation, HDF5 would
+        allocate space for and write fill values to every chunk in the dataset
+        at creation time, leading to noticeable overhead. Instead, with
+        incremental file space allocation, allocation of file space for chunks
+        and writing of fill values to those chunks will be delayed until each
+        individual chunk is initially written to.
+
+      * Addition of support for HDF5's "don't filter partial edge chunks" flag
+        (https://portal.hdfgroup.org/display/HDF5/H5P_SET_CHUNK_OPTS)
+
+      * Addition of proper support for HDF5 fill values with the feature
+
+      * Addition of 'H5_HAVE_PARALLEL_FILTERED_WRITES' macro to H5pubconf.h
+        so HDF5 applications can determine at compile-time whether the feature
+        is available
+
+      * Addition of simple examples (ph5_filtered_writes.c and
+        ph5_filtered_writes_no_sel.c) under examples directory to demonstrate
+        usage of the feature
+
+      * Improved coverage of regression testing for the feature
+
+      (JTH - 2022/2/23)
+
+    Fortran Library:
+    ----------------
+    - None 
+
+
+    C++ Library:
+    ------------
+    - None
+
+
+    Java Library:
+    -------------
+    - None
+
+
+    Tools:
+    ------
+    - h5repack added an optional verbose value for reporting R/W timing.
+
+      In addition to adding timing capture around the read/write calls in
+      h5repack, added help text to indicate how to show timing for read/write;
+           -v N, --verbose=N       Verbose mode, print object information.
+              N - is an integer greater than 1, 2 displays read/write timing
+      (ADB - 2022/04/01)
+
+
+    High-Level APIs:
+    ----------------
+    - None
+
+
+    C Packet Table API:
+    -------------------
+    - None
+
+
+    Internal header file:
+    ---------------------
+    - None
+
+
+    Documentation:
+    --------------
+    - None
+
+
+New platforms, languages and compilers tested
+==================================================
+    - macOS Apple M1 11.6 Darwin 20.6.0 arm64 with Apple clang version 12.0.5
+
+    - Fedora35 Linux 5.16.14-200.fc35 with GCC 11.2.1 and clang version 13.0.0
+
+
+Bug Fixes since HDF5-1.10.8 release
+===================================
+    Library
+    -------
+    - Fixed a metadata cache bug when resizing a pinned/protected cache entry
+
+      When resizing a pinned/protected cache entry, the metadata
+      cache code previously would wait until after resizing the
+      entry to attempt to log the newly-dirtied entry. This would
+      cause H5C_resize_entry to mark the entry as dirty and make
+      H5AC_resize_entry think that it doesn't need to add the
+      newly-dirtied entry to the dirty entries skiplist.
+
+      Thus, a subsequent H5AC__log_moved_entry would think it
+      needs to allocate a new entry for insertion into the dirty
+      entry skip list, since the entry doesn't exist on that list.
+      This causes an assertion failure, as the code to allocate a
+      new entry assumes that the entry is not dirty.
+
+      (JRM - 2022/02/28)
+
+    - Issue #1436 identified a problem with the H5_VERS_RELEASE check in the
+      H5check_version function.
+
+      Investigating the original fix, #812, we discovered some inconsistencies
+      with a new block added to check H5_VERS_RELEASE for incompatibilities.
+      This new block was not using the new warning text dealing with the
+      H5_VERS_RELEASE check and would cause the warning to be duplicated.
+
+      By removing the H5_VERS_RELEASE argument in the first check for 
+      H5_VERS_MAJOR and H5_VERS_MINOR, the second check would only check
+      the H5_VERS_RELEASE for incompatible release versions. This adheres
+      to the statement that except for the develop branch, all release versions
+      in a major.minor maintenance branch should be compatible. The prerequisite
+      is that an application will not use any APIs not present in all release versions.
+
+      (ADB - 2022/03/11, #1438)
+
+    - Unified handling of collective metadata reads to correctly fix old bugs
+
+      Due to MPI-related issues occurring in HDF5 from mismanagement of the
+      status of collective metadata reads, they were forced to be disabled
+      during chunked dataset raw data I/O in the HDF5 1.10.5 release. This
+      wouldn't generally have affected application performance because HDF5
+      already disables collective metadata reads during chunk lookup, since
+      it is generally unlikely that the same chunks will be read by all MPI
+      ranks in the I/O operation. However, this was only a partial solution
+      that wasn't granular enough.
+
+      This change now unifies the handling of the file-global flag and the
+      API context-level flag for collective metadata reads in order to
+      simplify querying of the true status of collective metadata reads. Thus,
+      collective metadata reads are once again enabled for chunked dataset
+      raw data I/O, but manually controlled at places where some processing
+      occurs on MPI rank 0 only and would cause issues when collective
+      metadata reads are enabled.
+
+      (JTH - 2021/11/16, HDFFV-10501/HDFFV-10562)
+
+    - Fixed several potential MPI deadlocks in library failure conditions
+
+      In the parallel library, there were several places where MPI rank 0
+      could end up skipping past collective MPI operations when some failure
+      occurs in rank 0-specific processing. This would lead to deadlocks
+      where rank 0 completes an operation while other ranks wait in the
+      collective operation. These places have been rewritten to have rank 0
+      push an error and try to cleanup after the failure, then continue to
+      participate in the collective operation to the best of its ability.
+
+      (JTH - 2021/11/09)
+
+    - Fixed an issue with collective metadata reads being permanently disabled
+      after a dataset chunk lookup operation. This would usually cause a
+      mismatched MPI_Bcast and MPI_ERR_TRUNCATE issue in the library for
+      simple cases of H5Dcreate() -> H5Dwrite() -> H5Dcreate().
+
+      (JTH - 2021/11/08, HDFFV-11090)
+
+    Java Library
+    ------------
+    - None
+
+
+    Configuration
+    -------------
+    - Reworked corrected path searched by CMake find_package command
+
+      The install path for cmake find_package files had been changed to use
+        "share/cmake"
+      for all platforms. However setting the HDF5_ROOT variable failed to locate
+      the configuration files. The build variable HDF5_INSTALL_CMAKE_DIR is now
+      set to the <INSTALL_DIR>/cmake folder. The location of the configuration 
+      files can still be specified by the "HDF5_DIR" variable.
+
+      (ADB - 2022/03/11)
+
+
+    Tools
+    -----
+    - None
+
+
+    Fortran API
+    -----------
+    - None
+
+
+    High-Level Library
+    ------------------
+    - Fixed HL_test_packet, test for packet table vlen of vlen.
+
+      Incorrect length assignment.
+
+      (ADB - 2021/10/14)
+
+
+    Fortran High-Level APIs
+    -----------------------
+    - None
+
+
+    Documentation
+    -------------
+    - None
+
+
+    F90 APIs
+    --------
+    - None
+
+
+    C++ APIs
+    --------
+    - None
+
+
+    Testing
+    -------
+    - None
+
+
+Platforms Tested
+===================
+
+    Linux 5.16.14-200.fc35           GNU gcc (GCC) 11.2.1 20220127 (Red Hat 11.2.1-9)
+    #1 SMP x86_64  GNU/Linux         GNU Fortran (GCC) 11.2.1 20220127 (Red Hat 11.2.1-9)
+    Fedora35                         clang version 13.0.0 (Fedora 13.0.0-3.fc35)
+                                     (cmake and autotools)
+
+    Linux 5.11.0-34-generic          GNU gcc (GCC) 9.3.0-17ubuntu1
+    #36-Ubuntu SMP x86_64 GNU/Linux  GNU Fortran (GCC) 9.3.0-17ubuntu1
+    Ubuntu 20.04                     Ubuntu clang version 10.0.0-4
+                                     (cmake and autotools)
+
+    Linux-4.14.0-115.21.2            spectrum-mpi/rolling-release
+    #1 SMP ppc64le GNU/Linux             clang 8.0.1, 11.0.1
+    (lassen)                             GCC 7.3.1
+                                         XL 2019.02.07
+                                     (cmake)
+
+    Linux-5.3.18-24.96-default       cray-mpich/7.7.19
+    #1 SMP x86_64 GNU/Linux              GCC 8.3.0, 11.2.0
+    (cori)                               Intel (R) Version 19.1.3.304
+                                     (cmake)
+
+    Linux-4.12.14-197.86-default     cray-mpich/7.7.16
+    # 1SMP x86_64 GNU/Linux              GCC  7.3.0, 9.3.0, 10.2.0
+    (mutrino)                            Intel (R) Version 17.0.4, 18.0.5, 19.1.3
+                                     (cmake)
+
+    Linux 3.10.0-1160.49.1.1chaos    openmpi-intel/4.1
+    #1 SMP x86_64 GNU/Linux              Intel (R) Version 18.0.5, 19.1.2
+    (chama)
+
+    Linux 3.10.0-1160.36.2.el7.ppc64 gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
+    #1 SMP ppc64be GNU/Linux         g++ (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
+    Power8 (echidna)                 GNU Fortran (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
+
+    Linux 3.10.0-1160.24.1.el7       GNU C (gcc), Fortran (gfortran), C++ (g++)
+    #1 SMP x86_64 GNU/Linux          compilers:
+    Centos7                              Version 4.8.5 20150623 (Red Hat 4.8.5-4)
+    (jelly/kituo/moohan)                 Version 4.9.3, Version 5.3.0, Version 6.3.0,
+                                         Version 7.2.0, Version 8.3.0, Version 9.1.0
+                                         Version 10.2.0
+                                     Intel(R) C (icc), C++ (icpc), Fortran (icc)
+                                     compilers:
+                                         Version 17.0.0.098 Build 20160721
+                                     GNU C (gcc) and C++ (g++) 4.8.5 compilers
+                                         with NAG Fortran Compiler Release 6.1(Tozai)
+                                     Intel(R) C (icc) and C++ (icpc) 17.0.0.098 compilers
+                                         with NAG Fortran Compiler Release 6.1(Tozai)
+                                     MPICH 3.1.4 compiled with GCC 4.9.3
+                                     MPICH 3.3 compiled with GCC 7.2.0
+                                     OpenMPI 2.1.6 compiled with icc 18.0.1
+                                     OpenMPI 3.1.3 and 4.0.0 compiled with GCC 7.2.0
+                                     PGI C, Fortran, C++ for 64-bit target on
+                                     x86_64;
+                                         Version 19.10-0
+
+    Linux-3.10.0-1160.53.1.1chaos    openmpi-4.1.2
+    #1 SMP x86_64 GNU/Linux              clang 6.0.0, 11.0.1
+    (quartz)                             GCC 8.3.1, 10.2.1
+                                         Intel 16.0.4, 18.0.2, 19.0.4
+
+    macOS Apple M1 11.6              Apple clang version 12.0.5 (clang-1205.0.22.11)
+    Darwin 20.6.0 arm64              gfortran GNU Fortran (Homebrew GCC 11.2.0) 11.1.0
+    (macmini-m1)                     Intel icc/icpc/ifort version 2021.3.0 20210609
+
+    macOS Big Sur 11.3.1             Apple clang version 12.0.5 (clang-1205.0.22.9)
+    Darwin 20.4.0 x86_64             gfortran GNU Fortran (Homebrew GCC 10.2.0_3) 10.2.0
+    (bigsur-1)                       Intel icc/icpc/ifort version 2021.2.0 20210228
+
+    macOS High Sierra 10.13.6        Apple LLVM version 10.0.0 (clang-1000.10.44.4)
+    64-bit                           gfortran GNU Fortran (GCC) 6.3.0
+    (bear)                           Intel icc/icpc/ifort version 19.0.4.233 20190416
+
+    macOS Sierra 10.12.6             Apple LLVM version 9.0.0 (clang-900.39.2)
+    64-bit                           gfortran GNU Fortran (GCC) 7.4.0
+    (kite)                           Intel icc/icpc/ifort version 17.0.2
+
+    Mac OS X El Capitan 10.11.6      Apple clang version 7.3.0 from Xcode 7.3
+    64-bit                           gfortran GNU Fortran (GCC) 5.2.0
+    (osx1011test)                    Intel icc/icpc/ifort version 16.0.2
+
+    Linux 2.6.32-573.22.1.el6        GNU C (gcc), Fortran (gfortran), C++ (g++)
+    #1 SMP x86_64 GNU/Linux          compilers:
+    Centos6                              Version 4.4.7 20120313
+    (platypus)                           Version 4.9.3, 5.3.0, 6.2.0
+                                     MPICH 3.1.4 compiled with GCC 4.9.3
+                                     PGI C, Fortran, C++ for 64-bit target on
+                                     x86_64;
+                                         Version 19.10-0
+
+    Windows 10 x64                  Visual Studio 2015 w/ Intel C/C++/Fortran 18 (cmake)
+                                    Visual Studio 2017 w/ Intel C/C++/Fortran 19 (cmake)
+                                    Visual Studio 2019 w/ clang 12.0.0
+                                        with MSVC-like command-line (C/C++ only - cmake)
+                                    Visual Studio 2019 
+                                        w/ Intel C/C++/Fortran oneAPI 2021(cmake)
+                                    Visual Studio 2019 w/ MSMPI 10.1 (C only - cmake)
+
+
+Known Problems
+==============
+    Setting a variable-length dataset fill value will leak the memory allocated
+    for the p field of the hvl_t struct. A fix is in progress for this.
+    HDFFV-10840
+
+    CMake files do not behave correctly with paths containing spaces.
+    Do not use spaces in paths because the required escaping for handling spaces
+    results in very complex and fragile build files.
+    ADB - 2019/05/07
+
+    At present, metadata cache images may not be generated by parallel
+    applications.  Parallel applications can read files with metadata cache
+    images, but since this is a collective operation, a deadlock is possible
+    if one or more processes do not participate.
+
+    CPP ptable test fails on both VS2017 and VS2019 with Intel compiler, JIRA
+    issue: HDFFV-10628.  This test will pass with VS2015 with Intel compiler.
+
+    The subsetting option in ph5diff currently will fail and should be avoided.
+    The subsetting option works correctly in serial h5diff.
+
+    Known problems in previous releases can be found in the HISTORY*.txt files
+    in the HDF5 source. Please report any new problems found to
+    help@hdfgroup.org.
+
+
+CMake vs. Autotools installations
+=================================
+While both build systems produce similar results, there are differences.
+Each system produces the same set of folders on linux (only CMake works
+on standard Windows); bin, include, lib and share. Autotools places the
+COPYING and RELEASE.txt file in the root folder, CMake places them in
+the share folder.
+
+The bin folder contains the tools and the build scripts. Additionally, CMake
+creates dynamic versions of the tools with the suffix "-shared". Autotools
+installs one set of tools depending on the "--enable-shared" configuration
+option.
+  build scripts
+  -------------
+  Autotools: h5c++, h5cc, h5fc
+  CMake: h5c++, h5cc, h5hlc++, h5hlcc
+
+The include folder holds the header files and the fortran mod files. CMake
+places the fortran mod files into separate shared and static subfolders,
+while Autotools places one set of mod files into the include folder. Because
+CMake produces a tools library, the header files for tools will appear in
+the include folder.
+
+The lib folder contains the library files, and CMake adds the pkgconfig
+subfolder with the hdf5*.pc files used by the bin/build scripts created by
+the CMake build. CMake separates the C interface code from the fortran code by
+creating C-stub libraries for each Fortran library. In addition, only CMake
+installs the tools library. The names of the szip libraries are different
+between the build systems.
+
+The share folder will have the most differences because CMake builds include
+a number of CMake specific files for support of CMake's find_package and support
+for the HDF5 Examples CMake project.
+
+The issues with the gif tool are:
+    HDFFV-10592 CVE-2018-17433
+    HDFFV-10593 CVE-2018-17436
+    HDFFV-11048 CVE-2020-10809
+These CVE issues have not yet been addressed and can be avoided by not building
+the gif tool. Disable building the High-Level tools with these options:
+    autotools:   --disable-hltools
+    cmake:       HDF5_BUILD_HL_TOOLS=OFF
+
+
+
 %%%%1.10.8%%%%
 
 HDF5 version 1.10.8 released on 2021-10-22
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index 5223811..6ec3bc0 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -1,4 +1,4 @@
-HDF5 version 1.10.10-2 currently under development
+HDF5 version 1.10.11-1 currently under development
 ================================================================================
 
 
@@ -36,7 +36,7 @@ CONTENTS
 
 - New Features
 - Support for new platforms and languages
-- Bug Fixes since HDF5-1.10.9
+- Bug Fixes since HDF5-1.10.10
 - Supported Platforms
 - Tested Configuration Features Summary
 - More Tested Platforms
@@ -49,78 +49,7 @@ New Features
 
     Configuration:
     -------------
-    - Removal of dmalloc support
-
-      The ability to build with dmalloc support has been removed along with
-      the following configure options:
-
-      Autotools:
-          --with-dmalloc=
-
-      CMake:
-          HDF5_ENABLE_USING_DMALLOC
-
-      (DER - 2023/03/17)
-      
-    - Allow parallel and threadsafe to be built
-
-      In the past, we required --enable-unsupported (Autotools) or
-      ALLOW_UNSUPPORTED (CMake) in order to build the parallel library with
-      thread-safety support. The parallel, thread-safe library can now be
-      built without these options.
-
-      (DER - 2023/03/17)
-
-    - Added new option to build libaec and zlib inline with CMake.
-
-      Using the CMake FetchContent module, the external filters can populate
-      content at configure time via any method supported by the ExternalProject
-      module. Whereas ExternalProject_Add() downloads at build time, the
-      FetchContent module makes content available immediately, allowing the
-      configure step to use the content in commands like add_subdirectory(),
-      include() or file() operations.
-
-      The HDF options (and defaults) for using this are:
-          BUILD_SZIP_WITH_FETCHCONTENT:BOOL=OFF
-          LIBAEC_USE_LOCALCONTENT:BOOL=OFF
-          BUILD_ZLIB_WITH_FETCHCONTENT:BOOL=OFF
-          ZLIB_USE_LOCALCONTENT:BOOL=OFF
-
-      The CMake variables to control the path and file names:
-          LIBAEC_TGZ_ORIGPATH:STRING
-          LIBAEC_TGZ_ORIGNAME:STRING
-          ZLIB_TGZ_ORIGPATH:STRING
-          ZLIB_TGZ_ORIGNAME:STRING
-
-      See the CMakeFilters.cmake and config/cmake/cacheinit.cmake files for usage.
-
-      (ADB - 2023/02/21)
-
-    - Add new CMake configuration variable HDF5_USE_GNU_DIRS
-
-      HDF5_USE_GNU_DIRS (default OFF) selects the use of GNU Coding Standard install
-      directory variables by including the CMake module, GNUInstallDirs(see CMake
-      documentation for details). The HDF_DIR_PATHS macro in the HDFMacros.cmake file
-      sets various PATH variables for use during the build, test and install processes.
-      By default, the historical settings for these variables will be used.
-
-      (ADB - 2022/10/21, GH-2175, GH-1716)
-
-    - Correct the usage of CMAKE_Fortran_MODULE_DIRECTORY and where to
-      install Fortran mod files.
-
-      The Fortran modules files, ending in .mod are files describing a
-      Fortran 90 (and above) module API and ABI. These are not like C
-      header files describing an API, they are compiler dependent and
-      arch dependent, and not easily readable by a human being. They are
-      nevertheless searched for in the includes directories by gfortran
-      (in directories specified with -I).
-
-      Autotools configure uses the -fmoddir option to specify the folder.
-      CMake will use "mod" folder by default unless overridden by the CMake
-      variable; HDF5_INSTALL_MODULE_DIR.
-
-      (ADB - 2022/07/21)
+    -
 
 
     Library:
@@ -145,78 +74,12 @@ New Features
 
     Java Library:
     -------------
-    - HDF5GroupInfo class has been deprecated.
-
-      This class assumes that an object can contain four values which uniquely identify an
-      object among those HDF5 files which are open. This is no longer valid in future
-      HDF5 releases.
-
-      (ADB - 2023/03/27)
-
-    - Added version of H5Rget_name to return the name as a Java string.
-
-      Other functions that get_name process the get_size then get the name
-      within the JNI implementation. Now H5Rget_name has a H5Rget_name_string.
-
-      (ADB - 2022/07/12)
-
-    - Added reference support to H5A and H5D read write vlen JNI functions.
-
-      Added the implementation to handle VL references as an Array of Lists
-      of byte arrays.
-
-      The JNI wrappers translate the Array of Lists to/from the hvl_t vlen
-      structures. The wrappers use the specified datatype arguments for the
-      List type translation, it is expected that the Java type is correct.
-
-      (ADB - 2022/07/11, HDFFV-11318)
-
-    - H5A and H5D read write vlen JNI functions were incorrect.
-
-      Corrected the vlen function implementations for the basic primitive types.
-      The VLStrings functions now correctly use the implementation that had been
-      the VL functions. (VLStrings functions did not have an implementation.)
-      The new VL functions implementation now expect an Array of Lists between
-      Java and the JNI wrapper. 
-
-      The JNI wrappers translate the Array of Lists to/from the hvl_t vlen
-      structures. The wrappers use the specified datatype arguments for the
-      List type translation, it is expected that the Java type is correct.
-
-      (ADB - 2022/07/07, HDFFV-11310)
-
-    - H5A and H5D read write JNI functions had flawed vlen datatype check.
-
-      Adapted tools function for JNI utils file. This reduced multiple calls
-      to a single check and variable. The variable can then be used to call 
-      the H5Treclaim function. Adjusted existing test and added new test.
-
-      (ADB - 2022/06/22)
+    -
 
 
     Tools:
     ------
-    - Building h5perf/h5perf_serial in "standalone mode" has been removed
-
-      Building h5perf separately from the library was added circa 2008
-      in HDF5 1.6.8. It's unclear what purpose this serves and the current
-      implementation is currently broken. The existing files require
-      H5private.h and the symbols we use to determine how the copied
-      platform-independence scheme should be used come from H5pubconf.h,
-      which may not match the compiler being used to build standalone h5perf.
-
-      Due to the maintenance overhead and lack of a clear use case, support
-      for building h5perf and h5perf_serial separately from the HDF5 library
-      has been removed.
-
-      (DER - 2023/03/20)
-
-    - The perf tool has been removed
-
-      The small `perf` tool didn't really do anything special and the name
-      conflicts with gnu's perf tool.
-
-      (DER - 2023/03/20, GitHub #1787)
+    -
 
 
     High-Level APIs:
@@ -244,96 +107,11 @@ Support for new platforms, languages and compilers
     -
 
 
-Bug Fixes since HDF5-1.10.9 release
+Bug Fixes since HDF5-1.10.10 release
 ===================================
     Library
     -------
-    - Fixed a memory corruption issue that can occur when reading
-      from a dataset using a hyperslab selection in the file
-      dataspace and a point selection in the memory dataspace
-
-      When reading from a dataset using a hyperslab selection in
-      the dataset's file dataspace and a point selection in the
-      dataset's memory dataspace where the file dataspace's "rank"
-      is greater than the memory dataspace's "rank", memory corruption
-      could occur due to an incorrect number of selection points
-      being copied when projecting the point selection onto the
-      hyperslab selection's dataspace.
-
-      (JTH - 2023/03/23)
-
-    - Fix CVE-2021-37501 / GHSA-rfgw-5vq3-wrjf
-
-      Check for overflow when calculating on-disk attribute data size.
-
-      A bogus hdf5 file may contain dataspace messages with sizes
-      which lead to the on-disk data sizes to exceed what is addressable.
-      When calculating the size, make sure, the multiplication does not
-      overflow.
-      The test case was crafted in a way that the overflow caused the
-      size to be 0.
-
-      (EFE - 2023/02/11 GH-2458)
-
-    - Fixed an issue with variable length attributes
-
-      Previously, if a variable length attribute was held open while its file
-      was opened through another handle, the same attribute was opened through
-      the second file handle, and the second file and attribute handles were
-      closed, attempting to write to the attribute through the first handle
-      would cause an error.
-
-      (NAF - 2022/10/24)
-
-    - Fixed an issue with hyperslab selections
-
-      Previously, when combining hyperslab selections, it was possible for the
-      library to produce an incorrect combined selection.
-
-      (NAF - 2022/09/25)
-
-    - Fixed an issue with attribute type conversion with compound datatypes
-
-      Previously, when performing type conversion for attribute I/O with a
-      compound datatype, the library would not fill the background buffer with
-      the contents of the destination, potentially causing data to be lost when
-      only writing to a subset of the compound fields.
-
-      (NAF - 2022/08/22, GitHub #2016)
-
-    - Modified H5Fstart_swmr_write() to preserve DAPL properties
-
-      Internally, H5Fstart_swmr_write() closes and reopens the file in question
-      as part of its process for making the file SWMR-safe.  Previously, when
-      the library reopened the file it would simply use the default access
-      properties.  Modified the library to instead save these properties and use
-      them when reopening the file.
-
-      (NAF - 2022/07/18, HDFFV-11308)
-
-    - Converted an assertion on (possibly corrupt) file contents to a normal
-      error check
-
-      Previously, the library contained an assertion check that a read superblock
-      doesn't contain a superblock extension message when the superblock
-      version < 2. When a corrupt HDF5 file is read, this assertion can be triggered
-      in debug builds of HDF5. In production builds, this situation could cause
-      either a library error or a crash, depending on the platform.
-
-      (JTH - 2022/07/08, HDFFV-11316, HDFFV-11317)
-
-    - Memory leak 
-    
-      A memory leak was observed with variable-length fill value in 
-      H5O_fill_convert() function in H5Ofill.c. The leak is
-      manifested by running valgrind on test/set_extent.c.
-
-      Previously, fill->buf is used for datatype conversion 
-      if it is large enough and the variable-length information 
-      is therefore lost.  A buffer is now allocated regardless 
-      so that the element in fill->buf can later be reclaimed.
-
-      (VC - 2022/10/10, HDFFV-10840)
+    -
  
 
     Java Library
@@ -343,62 +121,12 @@ Bug Fixes since HDF5-1.10.9 release
 
     Configuration
     -------------
-    - Correct the CMake generated pkg-config file
-
-      The pkg-config file generated by CMake had the order and placement of the
-      libraries wrong. Also added support for debug library names.
-
-      Changed the order of Libs.private libraries so that dependencies come after
-      dependents. Did not move the compression libraries into Requires.private
-      because there was not a way to determine if the compression libraries had
-      supported pkconfig files. Still recommend that the CMake config file method
-      be used for building projects with CMake.
-
-      (ADB - 2023/02/16 GH-1546,GH-2259)
-
-    - Remove Javadoc generation
-
-      The use of doxygen now supersedes the requirement to build javadocs. We do not
-      have the resources to continue to support two documentation methods and have
-      chosen doxygen as our standard.
-
-      (ADB - 2022/12/19)
-
-    - Change the default for building the high-level tools
-
-      The gif2hdf5 and hdf2gif high-level tools are deprecated and will be removed
-      in a future release. The default build setting for them have been changed from enabled
-      to disabled. A user can enable the build of these tools if needed.
-          autotools:   --enable-hlgiftools
-          cmake:       HDF5_BUILD_HL_GIF_TOOLS=ON
-
-      (ADB - 2022/12/16)
-
-    - Change the settings of the *pc files to use the correct format
-
-      The pkg-config files generated by CMake uses incorrect syntax for the 'Requires'
-      settings. Changing the set to use 'lib-name = version' instead 'lib-name-version'
-      fixes the issue
-
-      (ADB - 2022/12/06 HDFFV-11355)
-
-    - Move MPI libraries link from PRIVATE to PUBLIC
-
-      The install dependencies were not including the need for MPI libraries when
-      an application or library was built with the C library. Also updated the
-      CMake target link command to use the newer style MPI::MPI_C link variable.
-
-      (ADB - 2022/20/27)
+    -
 
 
     Tools
     -----
-    - Fix h5repack to only print output when verbose option is selected
-
-      When timing option was added to h5repack, the check for verbose was
-      incorrectly implemented.
-
-      (ADB -  2022/12/02, GH #2270)
+    -
 
 
     Performance
@@ -423,9 +151,7 @@ Bug Fixes since HDF5-1.10.9 release
 
     Documentation
     -------------
-    - Doxygen updated with recent Fortran changes.
-
-      (ADB - 2022/09/09)
+    -
 
 
     F90 APIs
diff --git a/src/H5public.h b/src/H5public.h
index 07747de..d2c1f2e 100644
--- a/src/H5public.h
+++ b/src/H5public.h
@@ -138,15 +138,15 @@ extern "C" {
 /**
  * For tweaks, bug-fixes, or development
  */
-#define H5_VERS_RELEASE 10
+#define H5_VERS_RELEASE 11
 /**
  * For pre-releases like \c snap0. Empty string for official releases.
  */
-#define H5_VERS_SUBRELEASE "2"
+#define H5_VERS_SUBRELEASE "1"
 /**
  * Full version string
  */
-#define H5_VERS_INFO "HDF5 library version: 1.10.10-2"
+#define H5_VERS_INFO "HDF5 library version: 1.10.11-1"
 
 #define H5check() H5check_version(H5_VERS_MAJOR, H5_VERS_MINOR, H5_VERS_RELEASE)
 
diff --git a/tools/test/h5repack/testfiles/h5repack_layout.h5-plugin_version_test.ddl b/tools/test/h5repack/testfiles/h5repack_layout.h5-plugin_version_test.ddl
index 5b67a3a..1ec77e7 100644
--- a/tools/test/h5repack/testfiles/h5repack_layout.h5-plugin_version_test.ddl
+++ b/tools/test/h5repack/testfiles/h5repack_layout.h5-plugin_version_test.ddl
@@ -11,7 +11,7 @@ GROUP "/" {
          USER_DEFINED_FILTER {
             FILTER_ID 260
             COMMENT dynlib4
-            PARAMS { 9 1 10 10 }
+            PARAMS { 9 1 10 11 }
          }
       }
       FILLVALUE {
@@ -33,7 +33,7 @@ GROUP "/" {
          USER_DEFINED_FILTER {
             FILTER_ID 260
             COMMENT dynlib4
-            PARAMS { 9 1 10 10 }
+            PARAMS { 9 1 10 11 }
          }
       }
       FILLVALUE {
@@ -55,7 +55,7 @@ GROUP "/" {
          USER_DEFINED_FILTER {
             FILTER_ID 260
             COMMENT dynlib4
-            PARAMS { 9 1 10 10 }
+            PARAMS { 9 1 10 11 }
          }
       }
       FILLVALUE {
@@ -77,7 +77,7 @@ GROUP "/" {
          USER_DEFINED_FILTER {
             FILTER_ID 260
             COMMENT dynlib4
-            PARAMS { 9 1 10 10 }
+            PARAMS { 9 1 10 11 }
          }
       }
       FILLVALUE {
@@ -99,7 +99,7 @@ GROUP "/" {
          USER_DEFINED_FILTER {
             FILTER_ID 260
             COMMENT dynlib4
-            PARAMS { 9 1 10 10 }
+            PARAMS { 9 1 10 11 }
          }
       }
       FILLVALUE {
@@ -121,7 +121,7 @@ GROUP "/" {
          USER_DEFINED_FILTER {
             FILTER_ID 260
             COMMENT dynlib4
-            PARAMS { 9 1 10 10 }
+            PARAMS { 9 1 10 11 }
          }
       }
       FILLVALUE {
@@ -143,7 +143,7 @@ GROUP "/" {
          USER_DEFINED_FILTER {
             FILTER_ID 260
             COMMENT dynlib4
-            PARAMS { 9 1 10 10 }
+            PARAMS { 9 1 10 11 }
          }
       }
       FILLVALUE {