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diff --git a/release_docs/HISTORY-1_8.txt b/release_docs/HISTORY-1_8.txt index 4465d06..577cf55 100644 --- a/release_docs/HISTORY-1_8.txt +++ b/release_docs/HISTORY-1_8.txt @@ -3,6 +3,10 @@ HDF5 History This file contains development history of HDF5 1.8 branch +23. Release Information for hdf5-1.8.21 +22. Release Information for hdf5-1.8.20 +21. Release Information for hdf5-1.8.19 +20. Release Information for hdf5-1.8.18 19. Release Information for hdf5-1.8.17 18. Release Information for hdf5-1.8.16 17. Release Information for hdf5-1.8.15 @@ -25,6 +29,2097 @@ This file contains development history of HDF5 1.8 branch [Search on the string '%%%%' for section breaks of each release.] +%%%%1.8.21%%%% + + +HDF5 version 1.8.21 released on 2018-06-04 +================================================================================ + +INTRODUCTION +============ + +This document describes the differences between HDF5-1.8.20 and +HDF5-1.8.21, and contains information on the platforms tested and +known problems in HDF5-1.8.21. +For more details, see the files HISTORY-1_0-1_8_0_rc3.txt +and HISTORY-1_8.txt in the release_docs/ directory of the HDF5 source. + +Links to the HDF5 1.8.21 source code, documentation, and additional materials +can be found on the HDF5 web page at: + + https://support.hdfgroup.org/HDF5/ + +The HDF5 1.8.21 release can be obtained from: + + https://support.hdfgroup.org/HDF5/release/obtain518.html + +User documentation for 1.8.21 can be accessed directly at this location: + + https://support.hdfgroup.org/HDF5/doc1.8/ + +New features in the HDF5-1.8.x release series, including brief general +descriptions of some new and modified APIs, are described in the "What's New +in 1.8.0?" document: + + https://support.hdfgroup.org/HDF5/doc/ADGuide/WhatsNew180.html + +All new and modified APIs are listed in detail in the "HDF5 Software Changes +from Release to Release" document, in the section "Release 1.8.21 (current +release) versus Release 1.8.20 + + https://support.hdfgroup.org/HDF5/doc1.8/ADGuide/Changes.html + +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, Languages, and Compilers +- Bug Fixes since HDF5-1.8.20 +- Supported Platforms +- Supported Configuration Features Summary +- More Tested Platforms +- Known Problems + + +New Features +============ + + Configuration + ------------- + - CMake + + Change minimum version to 3.10. + + This change removes the need to support a copy of the FindMPI.cmake module, + which has been removed, along with its subfolder in the config/cmake_ext_mod + location. + + (ADB - 2018/03/09) + + - CMake + + Add pkg-config file generation + + Added pkg-config file generation for the C, C++, HL, and HL C++ libraries. + In addition, builds on linux will create h5cXXX scripts that use the pkg-config + files. This is a limited implementation of a script like autotools h5cc. + + (ADB - 2018/03/08, HDFFV-4359) + + - CMake + + Refactor use of CMAKE_BUILD_TYPE for new variable, which understands + the type of generator in use. + + Added new configuration macros to use new HDF_BUILD_TYPE variable. This + variable is set correctly for the type of generator being used for the build. + + (ADB - 2018/01/08, HDFFV-10385, HDFFV-10296) + + C++ API + ------- + - The following C++ API wrappers have been added to class H5Location + + H5Lcreate_soft: + // Creates a soft link from link_name to target_name. + void link(const char *target_name, const char *link_name,...) + void link(const H5std_string& target_name,...) + + + H5Lcreate_hard: + // Creates a hard link from new_name to curr_name. + void link(const char *curr_name, const Group& new_loc,...) + void link(const H5std_string& curr_name, const Group& new_loc,...) + + // Creates a hard link from new_name to curr_name in the same location. + void link(const char *curr_name, const hid_t same_loc,...) + void link(const H5std_string& curr_name, const hid_t same_loc,...) + + Note: previous version CommonFG::link will be deprecated. + + + H5Lcopy: + // Copy an object from a group of file to another. + void copyLink(const char *src_name, const Group& dst,...) + void copyLink(const H5std_string& src_name, const Group& dst,...) + + // Copy an object from a group of file to the same location. + void copyLink(const char *src_name, const char *dst_name,...) + void copyLink(const H5std_string& src_name,...) + + + H5Lmove: + // Rename an object in a group or file to a new location. + void moveLink(const char* src_name, const Group& dst,...) + void moveLink(const H5std_string& src_name, const Group& dst,...) + + // Rename an object in a group or file to the same location. + void moveLink(const char* src_name, const char* dst_name,...) + void moveLink(const H5std_string& src_name,...) + + Note: previous version CommonFG::move will be deprecated. + + + H5Ldelete: + // Removes the specified link from this location. + void unlink(const char *link_name, + const LinkAccPropList& lapl = LinkAccPropList::DEFAULT) + void unlink(const H5std_string& link_name, + const LinkAccPropList& lapl = LinkAccPropList::DEFAULT) + + Note: An additional parameter is added to CommonFG::unlink and it + is moved to H5Location. + + (BMR - 2018/05/11 - HDFFV-10445) + + - New property list subclasses + + Property list subclasses StrCreatPropList, LinkCreatPropList, and + AttrCreatPropList are added for the C property list classes + H5P_STRING_CREATE, H5P_LINK_CREATE, and H5P_ATTRIBUTE_CREATE. + + (BMR - 2018/05/11 - HDFFV-10445) + + - Another argument, LinkCreatPropList& lcpl, is added to the following + functions for the use of link creation property list. + Group createGroup(const char* name, size_t size_hint = 0, + const LinkCreatPropList& lcpl = LinkCreatPropList::DEFAULT) + Group createGroup(const H5std_string& name, size_t size_hint = 0, + const LinkCreatPropList& lcpl = LinkCreatPropList::DEFAULT) + + (BMR - 2018/05/11 - HDFFV-10445) + + + +Support for New Platforms, Languages, and Compilers +=================================================== + + - Added support for Visual Studio 2017 w/ Intel Fortran 18 on Windows 10 x64. + + +Bug Fixes since HDF5-1.8.20 +=========================== + + - If an HDF5 file contains a filter pipeline message with a 'number of + filters' field that exceeds the maximum number of allowed filters, + the error handling code will attempt to dereference a NULL pointer. + + This issue was reported to The HDF Group as issue #CVE-2017-17505. + + NOTE: The HDF5 C library cannot produce such a file. This condition + should only occur in a corrupt (or deliberately altered) file + or a file created by third-party software. + + This problem arose because the error handling code assumed that + the 'number of filters' field implied that a dynamic array of that + size had already been created and that the cleanup code should + iterate over that array and clean up each element's resources. If + an error occurred before the array has been allocated, this will + not be true. + + This has been changed so that the number of filters is set to + zero on errors. Additionally, the filter array traversal in the + error handling code now requires that the filter array not be NULL. + + (DER - 2018/02/06, HDFFV-10354) + + - If an HDF5 file contains a filter pipeline message which contains + a 'number of filters' field that exceeds the actual number of + filters in the message, the HDF5 C library will read off the end of + the read buffer. + + This issue was reported to The HDF Group as issue #CVE-2017-17506. + + NOTE: The HDF5 C library cannot produce such a file. This condition + should only occur in a corrupt (or deliberately altered) file + or a file created by third-party software. + + The problem was fixed by passing the buffer size with the buffer + and ensuring that the pointer cannot be incremented off the end + of the buffer. A mismatch between the number of filters declared + and the actual number of filters will now invoke normal HDF5 + error handling. + + (DER - 2018/02/26, HDFFV-10355) + + - If an HDF5 file contains a malformed compound datatype with a + suitably large offset, the type conversion code can run off + the end of the type conversion buffer, causing a segmentation + fault. + + This issue was reported to The HDF Group as issue #CVE-2017-17507. + + NOTE: The HDF5 C library cannot produce such a file. This condition + should only occur in a corrupt (or deliberately altered) file + or a file created by third-party software. + + THE HDF GROUP WILL NOT FIX THIS BUG AT THIS TIME + + Fixing this problem would involve updating the publicly visible + H5T_conv_t function pointer typedef and versioning the API calls + which use it. We normally only modify the public API during + major releases, so this bug will not be fixed at this time. + + (DER - 2018/02/26, HDFFV-10356) + + - If an HDF5 file contains a malformed compound type which contains + a member of size zero, a division by zero error will occur while + processing the type. + + This issue was reported to The HDF Group as issue #CVE-2017-17508. + + NOTE: The HDF5 C library cannot produce such a file. This condition + should only occur in a corrupt (or deliberately altered) file + or a file created by third-party software. + + Checking for zero before dividing fixes the problem. Instead of the + division by zero, the normal HDF5 error handling is invoked. + + (DER - 2018/02/26, HDFFV-10357) + + - If an HDF5 file contains a malformed symbol table node that declares + it contains more symbols than it actually contains, the library + can run off the end of the metadata cache buffer while processing + the symbol table node. + + This issue was reported to The HDF Group as issue #CVE-2017-17509. + + NOTE: The HDF5 C library cannot produce such a file. This condition + should only occur in a corrupt (or deliberately altered) file + or a file created by third-party software. + + Performing bounds checks on the buffer while processing fixes the + problem. Instead of the segmentation fault, the normal HDF5 error + handling is invoked. + + (DER - 2018/03/12, HDFFV-10358) + + + Configuration + ------------- + - Library + + Moved the location of gcc attribute. + + The gcc attribute(no_sanitize), named as the macro HDF_NO_UBSAN, + was located after the function name. Builds with GCC 7 did not + indicate any problem, but GCC 8 issued errors. Moved the + attribute before the function name, as required. + + (ADB 2018/05/22, HDFFV-10473) + + - CMake + + Update CMake commands configuration. + + A number of improvements were made to the CMake commands. Most + changes simplify usage or eliminate unused constructs. Also, + some changes support better cross-platform support. + + (ADB - 2018/02/01, HDFFV-10398) + + - CMake + + Correct usage of CMAKE_BUILD_TYPE variable. + + The use of the CMAKE_BUILD_TYPE is incorrect for multi-config + generators (Visual Studio and XCode) and is optional for single + config generators. Created a new macro to check + GLOBAL PROPERTY -> GENERATOR_IS_MULTI_CONFIG + Created two new HDF variable, HDF_BUILD_TYPE and HDF_CFG_BUILD_TYPE. + Defaults for these variables is "Release". + + (ADB - 2018/01/10, HDFFV-10385) + + - CMake + + Add replacement of fortran flags if using static CRT. + + Added TARGET_STATIC_CRT_FLAGS call to HDFUseFortran.cmake file in + config/cmake_ext_mod folder. + + (ADB - 2018/01/08, HDFFV-10334) + + + Library + ------- + - Utility function can not handle lowercase Windows drive letters + + Added call to toupper function for drive letter. + + (ADB - 2017/12/18, HDFFV-10307) + + + Tools + ----- + - h5repack + + h5repack changes the chunk parameters when a change of layout is not + specified and a filter is applied. + + HDFFV-10297, HDFFV-10319 reworked code for h5repack and h5diff code + in the tools library. The check for an existing layout was incorrectly + placed into an if block and not executed. The check was moved into + the normal path of the function. + + (ADB - 2018/02/21, HDFFV-10412) + + - h5dump + + the tools library will hide the error stack during file open. + + While this is preferable almost always, there are reasons to enable + display of the error stack when a tool will not open a file. Adding an + optional argument to the --enable-error-stack will provide this use case. + As an optional argument it will not affect the operation of the + --enable-error-stack. h5dump is the only tool to implement this change. + + (ADB - 2018/02/15, HDFFV-10384) + + - h5dump + + h5dump would output an indented blank line in the filters section. + + h5dump overused the h5tools_simple_prefix function, which is a + function intended to account for the data index (x,y,z) option. + Removed the function call for header information. + + (ADB - 2018/01/25, HDFFV-10396) + + - h5repack + + h5repack incorrectly searched internal object table for name. + + h5repack would search the table of objects for a name, if the + name did not match it tried to determine if the name without a + leading slash would match. The logic was flawed! The table + stored names(paths) without a leading slash and did a strstr + of the table path to the name. + The assumption was that if there was a difference of one then + it was a match, however "pressure" would match "/pressure" as + well as "/pressure1", "/pressure2", etc. Changed logic to remove + any leading slash and then do a full compare of the name. + + (ADB - 2018/01/18, HDFFV-10393) + + - h5repack + + h5repack failed to handle command line parameters for customer filters. + + User defined filter parameter conversions would fail when integers + were represented on the command line with character strings + larger than 9 characters. Increased local variable array for storing + the current command line parameter to prevent buffer overflows. + + (ADB - 2018/01/17, HDFFV-10392) + + - h5diff + + h5diff seg faulted if comparing VL strings against fixed strings. + + Reworked solution for HDFFV-8625 and HDFFV-8639. Implemented the check + for string objects of same type in the diff_can_type function by + adding an if(tclass1 == H5T_STRING) block. This "if block" moves the + same check that was added for attributes to this function, which is + used by all object types. This function handles complex type structures. + Also added a new test file in h5diffgentest for testing this issue + and removed the temporary files used in the test scripts. + + (ADB - 2018/01/04, HDFFV-8745) + + + C++ API + ------- + - Removal of memory leaks + + A private function was inadvertently called, causing memory leaks. This + is now fixed. + + (BMR - 2018/04/12 - User reported in email) + + - Changes in exception classes + + Some exception classes are reorganized to reflect the HDF5 object + hierarchy and allow customization. + DataSetIException -> LocationException -> Exception + DataTypeIException -> LocationException -> Exception + GroupIException -> LocationException -> Exception + AttributeIException -> LocationException -> Exception + FileIException -> GroupIException -> LocationException -> Exception + Member functions in H5Location and H5Object now throw specific exceptions + associated with the invoking objects. + + (BMR - 2018/05/11) + + - H5Location::closeObjId is made static + (BMR - 2018/05/11) + + - H5A wrappers in H5Location are removed as they have been in H5Object. + (BMR - 2018/05/11) + + +Supported Platforms +=================== +The following platforms are supported and have been tested for this release. +They are built with the configure process unless specified otherwise. + + Linux 2.6.32-573.22.1.el6 GNU C (gcc), Fortran (gfortran), C++ (g++) + #1 SMP x86_64 GNU/Linux compilers: + (platypus/mayll) Version 4.4.7 20120313 + Versions 4.9.3, 5.3.0, 6.2.0 + PGI C, Fortran, C++ for 64-bit target on + x86-64; + Version 17.10-0 + Intel(R) C (icc), C++ (icpc), Fortran (icc) + compilers: + Version 17.0.4.196 Build 20160721 + MPICH 3.1.4 compiled with GCC 4.9.3 + OpenMPI 2.0.1 compiled with GCC 4.9.3 + + Linux 2.6.32-573.18.1.el6 gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16) + #1 SMP ppc64 GNU/Linux g++ (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16) + (ostrich) GNU Fortran (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16) + 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: + (kituo/moohan/jelly Version 4.8.5 20150623 (Red Hat 4.8.5-4) + Versions 4.9.3, 5.3.0, 6.2.0 + Intel(R) C (icc), C++ (icpc), Fortran (icc) + compilers: + Version 17.0.4.196 Build 20170411 + MPICH 3.1.4 compiled with GCC 4.9.3 + NAG Fortran Compiler Release 6.1(Tozai) Build 6116 + + SunOS 5.11 32- and 64-bit Sun C 5.12 SunOS_sparc + (emu) Sun Fortran 95 8.6 SunOS_sparc + Sun C++ 5.12 SunOS_sparc + + Windows 7 Visual Studio 2015 w/ Intel Fortran 16 (cmake) + + Windows 7 x64 Visual Studio 2012 w/ Intel Fortran 15 (cmake) + Visual Studio 2013 w/ Intel Fortran 15 (cmake) + Visual Studio 2015 w/ Intel Fortran 16 (cmake) + Visual Studio 2015 w/ Intel C, Fortran 2017 (cmake) + Visual Studio 2015 w/ MSMPI 8 (cmake) + + Windows 10 Visual Studio 2015 w/ Intel Fortran 16 (cmake) + + Windows 10 x64 Visual Studio 2015 w/ Intel Fortran 16 (cmake) + Visual Studio 2017 w/ Intel Fortran 18 (cmake) + + Mac OS X Mavericks 10.9.5 Apple LLVM version 6.0 (clang-600.0.57) + 64-bit gfortran GNU Fortran (GCC) 4.9.2 + (wren/quail) Intel icc/icpc/ifort version 15.0.3 + + Mac OS X Yosemite 10.10.5 Apple LLVM version 6.1 (clang-602.0.53) + 64-bit gfortran GNU Fortran (GCC) 4.9.2 + (osx1010dev/osx1010test) Intel icc/icpc/ifort version 15.0.3 + + Mac OS X El Capitan 10.11.6 Apple LLVM version 7.3.0 (clang-703.0.29) + 64-bit gfortran GNU Fortran (GCC) 5.2.0 + (VM osx1011dev/osx1011test) Intel icc/icpc/ifort version 16.0.2 + + Mac OS Sierra 10.12.6 Apple LLVM version 8.1 (clang-802.0.42) + 64-bit gfortran GNU Fortran (GCC) 7.1.0 + (kite) Intel icc/icpc/ifort version 17.0.2 + + +Tested Configuration Features Summary +===================================== + + In the tables below + y = tested + n = not tested in this release + C = Cluster + W = Workstation + x = not working in this release + dna = does not apply + ( ) = footnote appears below second table + <blank> = testing incomplete on this feature or platform + +Platform C F90/ F90 C++ zlib SZIP + parallel F2003 parallel +SunOS 5.11 32-bit n y/y n y y y +SunOS 5.11 64-bit n y/y n y y y +Windows 7 y y/y n y y y +Windows 7 x64 y y/y n y y y +Windows 7 Cygwin n y/n n y y y +Windows 7 x64 Cygwin n y/n n y y y +Windows 10 y y/y n y y y +Windows 10 x64 y y/y n y y y +Mac OS X Yosemite 10.10.5 64-bit n y/y n y y y +Mac OS X El Capitan 10.11.6 64-bit n y/y n y y y +Mac OS Sierra 10.12.6 64-bit n y/y n y y y +AIX 6.1 32- and 64-bit n y/n n y y y +CentOS 6.7 Linux 2.6.32 x86_64 GNU y y/y y y y y +CentOS 6.7 Linux 2.6.32 x86_64 Intel n y/y n y y y +CentOS 6.7 Linux 2.6.32 x86_64 PGI n y/y n y y y +CentOS 7.1 Linux 3.10.0 x86_64 GNU y y/y y y y y +CentOS 7.1 Linux 3.10.0 x86_64 Intel n y/y n y y y +Linux 2.6.32-573.18.1.el6.ppc64 n y/n n y y y + +Platform Shared Shared Shared Thread- + C libs F90 libs C++ libs safe +SunOS 5.11 32-bit y y y y +SunOS 5.11 64-bit y y y y +Windows 7 y y y y +Windows 7 x64 y y y y +Windows 7 Cygwin n n n y +Windows 7 x64 Cygwin n n n y +Windows 10 y y y y +Windows 10 x64 y y y y +Mac OS X Yosemite 10.10.5 64-bit y n y y +Mac OS X El Capitan 10.11.6 64-bit y n y y +Mac OS Sierra 10.12.6 64-bit y n y y +AIX 6.1 32- and 64-bit y n n y +CentOS 6.7 Linux 2.6.32 x86_64 GNU y y y y +CentOS 6.7 Linux 2.6.32 x86_64 Intel y y y y +CentOS 6.7 Linux 2.6.32 x86_64 PGI y y y y +CentOS 7.1 Linux 3.10.0 x86_64 GNU y y y y +CentOS 7.1 Linux 3.10.0 x86_64 Intel y y y y +Linux 2.6.32-573.18.1.el6.ppc64 y y y y + +Compiler versions for each platform are listed in the preceding +"Supported Platforms" table. + + +More Tested Platforms +===================== +The following platforms are not supported but have been tested for this release. + + Linux 2.6.32-573.22.1.el6 g95 (GCC 4.0.3 (g95 0.94!) + #1 SMP x86_64 GNU/Linux + (mayll) + + Debian8.4.0 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1 x86_64 GNU/Linux + gcc (Debian 4.9.2-10) 4.9.2 + GNU Fortran (Debian 4.9.2-10) 4.9.2 + (cmake and autotools) + + Fedora24 4.7.2-201.fc24.x86_64 #1 SMP x86_64 x86_64 x86_64 GNU/Linux + gcc (GCC) 6.1.1 20160621 (Red Hat 6.1.1-3) + GNU Fortran (GCC) 6.1.1 20160621 (Red Hat 6.1.1-3) + (cmake and autotools) + + CentOS 7.2 3.10.0-327.28.2.el7.x86_64 #1 SMP x86_64 x86_64 x86_64 GNU/Linux + gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4) + GNU Fortran (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4) + (cmake and autotools) + + Ubuntu 16.04 4.4.0-38-generic #62-Ubuntu SMP x86_64 GNU/Linux + gcc (Ubuntu 5.4.0-6ubuntu1~16.04.2) 5.4.0 + GNU Fortran (Ubuntu 5.4.0-6ubuntu1~16.04.2) 5.4.0 + (cmake and autotools) + + +Known Problems +============== + + The dynamically loaded plugin test libraries require undefined references + to HDF5 functions to be resolved at runtime in order to function properly. + With autotools on CYGWIN this results in build errors, and we have not + found a solution that satisfies both. Therefore the dynamically loaded + plugin tests have been disabled on CYGWIN. + + Mac OS X 10.13 added additional subdirectory structure in .libs for shared + libraries. Consequently "make check" will fail testing java and dynamically + loaded plugin test libraries attempting to copy files from the previous + locations in .libs directories. This will be addressed in the next release + when support for the Mac OS X 10.13 platform is added. + + 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. + + +%%%%1.8.20%%%% + + +HDF5 version 1.8.20 released on 2017-11-28 +================================================================================ + +INTRODUCTION +============ + +This document describes the differences between HDF5-1.8.19 and +HDF5-1.8.20, and contains information on the platforms tested and +known problems in HDF5-1.8.20. +For more details, see the files HISTORY-1_0-1_8_0_rc3.txt +and HISTORY-1_8.txt in the release_docs/ directory of the HDF5 source. + +Links to the HDF5 1.8.20 source code, documentation, and additional materials +can be found on the HDF5 web page at: + + https://support.hdfgroup.org/HDF5/ + +The HDF5 1.8.20 release can be obtained from: + + https://support.hdfgroup.org/HDF5/release/obtain518.html + +User documentation for 1.8.20 can be accessed directly at this location: + + https://support.hdfgroup.org/HDF5/doc1.8/ + +New features in the HDF5-1.8.x release series, including brief general +descriptions of some new and modified APIs, are described in the "What's New +in 1.8.0?" document: + + https://support.hdfgroup.org/HDF5/doc/ADGuide/WhatsNew180.html + +All new and modified APIs are listed in detail in the "HDF5 Software Changes +from Release to Release" document, in the section "Release 1.8.20 (current +release) versus Release 1.8.19 + + https://support.hdfgroup.org/HDF5/doc1.8/ADGuide/Changes.html + +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, Languages, and Compilers +- Bug Fixes since HDF5-1.8.20 +- Supported Platforms +- Supported Configuration Features Summary +- More Tested Platforms +- Known Problems + + +New Features +============ + + Tools + ----- + - h5diff + + h5diff has new option enable-error-stack. + + Updated h5diff with the --enable-error-stack argument, which + enables the display of the hdf5 error stack. This completes the + improvement to the main tools; h5copy, h5diff, h5dump, h5ls and + h5repack. + + (ADB - 2017/08/30, HDFFV-9774) + + + C++ API + ------- + - The following C++ API wrappers have been added to the C++ Library: + + // Creates a binary object description of this datatype. + void DataType::encode() - C API H5Tencode() + + // Returns the decoded type from the binary object description. + DataType::decode() - C API H5Tdecode() + ArrayType::decode() - C API H5Tdecode() + CompType::decode() - C API H5Tdecode() + DataType::decode() - C API H5Tdecode() + EnumType::decode() - C API H5Tdecode() + FloatType::decode() - C API H5Tdecode() + IntType::decode() - C API H5Tdecode() + StrType::decode() - C API H5Tdecode() + VarLenType::decode() - C API H5Tdecode() + + // Three overloaded functions to retrieve information about an object + H5Location::getObjectInfo() - H5Oget_info()/H5Oget_info_by_name() + + (BMR - 2017/10/17, HDFFV-10175) + + - New constructors to open existing datatypes added in ArrayType, + CompType, DataType, EnumType, FloatType, IntType, StrType, and + VarLenType. + + (BMR - 2017/10/17, HDFFV-10175) + + - A document is added to the HDF5 C++ API Reference Manual to show the + mapping from a C API to C++ wrappers. It can be found from the main + page of the C++ API Reference Manual. + + (BMR - 2017/10/17, HDFFV-10151) + + + High-Level APIs + --------------- + - H5DOread_chunk + + Users wanted to read compressed data directly from a file without any + processing by the HDF5 data transfer pipeline, just as they were able + to write it directly to a file with H5DOwrite_chunk. + + New API function, corresponding to existing function H5DOwrite_chunk. + H5DOread_chunk reads a raw data chunk directly from a chunked dataset + in the file into the application buffer, bypassing the library’s internal + data transfer pipeline, including filters. + + (VC - 2017/05/02, HDFFV-9934) + + +Support for New Platforms, Languages, and Compilers +=================================================== + + - Added NAG compiler + + +Bug Fixes since HDF5-1.8.19 +=========================== + + Configuration + ------------- + - cmake + + The hdf5 library used shared szip and zlib, which needlessly required + applications to link with the same szip and zlib libraries. + + Changed the target_link_libraries commands to use the static libs. + Removed improper link duplication of szip and zlib. + Adjusted the link dependencies and the link interface values of + the target_link_libraries commands. + + (ADB - 2017/11/14, HDFFV-10329) + + - cmake MPI + + CMake implementation for MPI was problematic and would create incorrect + MPI library references in the hdf5 libraries. + + Reworked the CMake MPI code to properly create CMake targets.Also merged + the latest CMake FindMPI.cmake changes to the local copy. This is necessary + until HDF changes the CMake minimum to 3.9 or greater. + + (ADB - 2017/11/02, HDFFV-10321) + + + - Fixed Fortran linker flags when using the NAG Fortran compiler (autotools). + + (HDFFV-10037, MSB, 2017/10/21) + + - cmake + + Too many commands for POST_BUILD step caused command line to be + too big on windows. + + Changed foreach of copy command to use a custom command with the + use of the HDFTEST_COPY_FILE macro. + + (ADB - 2017/07/12, HDFFV-10254) + + + Library + ------- + - filter plugin handling in H5PL.c and H5Z.c + + It was discovered that the dynamic loading process used by + filter plugins had issues with library dependencies. + + CMake build process changed to use LINK INTERFACE keywords, which + allowed HDF5 C library to make dependent libraries private. The + filter plugin libraries no longer require dependent libraries + (such as szip or zlib) to be available. + (ADB - 2017/11/16, HDFFV-10328) + + - Fix rare object header corruption bug + + In certain cases, such as when converting large attributes to dense + storage, an error could occur which would either fail an assertion or + cause file corruption. Fixed and added test. + + (NAF - 2017/11/14, HDFFV-10274) + + - H5Zfilter_avail in H5Z.c + + The public function checked for plugins, while the private + function did not. + + Modified H5Zfilter_avail and private function, H5Z_filter_avail. + Moved check for plugin from public to private function. Updated + H5P__set_filter due to change in H5Z_filter_avail. Updated tests. + + (ADB - 2017/10/10, HDFFV-10297, HDFFV-10319) + + - Fix H5Sencode bug when num points selected is >2^32 + + Modified to fail if the 32 bit limit is exceeded when encoding either + offsets or counts in the selection. + + (HDFFV-10323, VC, 2017/09/07) + + - Fix H5HL_offset_into() + + (1) Fix H5HL_offset_into() to return error when offset exceeds heap data + block size. + (2) Fix other places in the library that call this routine to detect + error routine. + + (HDFFV-10216, VC, 2017/09/05) + + + Tools + ----- + - h5repack + + h5repack failed to copy a dataset with existing filter. + + Reworked code for h5repack and h5diff code in tools library. Added + improved error handling, cleanup of resources and checks of calls. + Modified H5Zfilter_avail and private function, H5Z_filter_avail. + Moved check for plugin from public to private function. Updated + H5P__set_filter due to change in H5Z_filter_avail. Updated tests. + Note, h5repack output display has changed to clarify the individual + steps of the repack process. The output indicates if an operation + applies to all objects. Lines with notation and no information + have been removed. + + (ADB - 2017/10/10, HDFFV-10297, HDFFV-10319) + + - h5repack + + h5repack always set the User Defined filter flag to H5Z_FLAG_MANDATORY. + + Added another parameter to the 'UD=' option to set the flag by default + to '0' or H5Z_FLAG_MANDATORY, the other choice is '1' or H5Z_FLAG_OPTIONAL. + + (ADB - 2017/08/31, HDFFV-10269) + + - h5ls + + h5ls generated error on stack when it encountered a H5S_NULL + dataspace. + + Adding checks for H5S_NULL before calling H5Sis_simple (located + in the h5tools_dump_mem function) fixed the issue. + + (ADB - 2017/08/17, HDFFV-10188) + + - h5dump + + h5dump segfaulted on output of XML file. + + Function that escape'd strings used the full buffer length + instead of just the length of the replacement string in a + strncpy call. Using the correct length fixed the issue. + + (ADB - 2017/08/01, HDFFV-10256) + + - h5diff + + h5diff segfaulted on compare of a NULL variable length string. + + Improved h5diff compare of strings by adding a check for + NULL strings and setting the lengths to zero. + + (ADB - 2017/07/25, HDFFV-10246) + + - h5import + + h5import crashed trying to import data from a subset of a dataset. + + Improved h5import by adding the SUBSET keyword. h5import understands + to use the Count times the Block as the size of the dimensions. + Added INPUT_B_ORDER keyword to old-style configuration files. + The import from h5dump function expects the binary files to use native + types (FILE '-b' option) in the binary file. + + (ADB - 2017/06/15, HDFFV-10219) + + + C++ API + ------- + - Marked the following functions deprecated because they were moved to + class H5Object: + H5Location::createAttribute() + H5Location::openAttribute() + H5Location::attrExists() + H5Location::removeAttr() + H5Location::renameAttr() + H5Location::getNumAttrs() + + (BMR - 2017/10/17) + + +Supported Platforms +=================== +The following platforms are supported and have been tested for this release. +They are built with the configure process unless specified otherwise. + + Linux 2.6.32-573.22.1.el6 GNU C (gcc), Fortran (gfortran), C++ (g++) + #1 SMP x86_64 GNU/Linux compilers: + (platypus/mayll) Version 4.4.7 20120313 + Versions 4.9.3, 5.3.0, 6.2.0 + PGI C, Fortran, C++ for 64-bit target on + x86-64; + Version 16.10-0 + Intel(R) C (icc), C++ (icpc), Fortran (icc) + compilers: + Version 17.0.0.196 Build 20160721 + MPICH 3.1.4 compiled with GCC 4.9.3 + OpenMPI 2.0.1 compiled with GCC 4.9.3 + + Linux 2.6.32-573.18.1.el6 gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16) + #1 SMP ppc64 GNU/Linux g++ (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16) + (ostrich) GNU Fortran (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16) + 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: + (kituo/moohan/jelly Version 4.8.5 20150623 (Red Hat 4.8.5-4) + Versions 4.9.3, 5.3.0, 6.2.0 + Intel(R) C (icc), C++ (icpc), Fortran (icc) + compilers: + Version 17.0.4.196 Build 20170411 + MPICH 3.1.4 compiled with GCC 4.9.3 + NAG Fortran Compiler Release 6.1(Tozai) Build 6116 + + SunOS 5.11 32- and 64-bit Sun C 5.12 SunOS_sparc + (emu) Sun Fortran 95 8.6 SunOS_sparc + Sun C++ 5.12 SunOS_sparc + + Windows 7 Visual Studio 2012 w/ Intel Fortran 15 (cmake) + Visual Studio 2013 w/ Intel Fortran 15 (cmake) + Visual Studio 2015 w/ Intel Fortran 16 (cmake) + + Windows 7 x64 Visual Studio 2012 w/ Intel Fortran 15 (cmake) + Visual Studio 2013 w/ Intel Fortran 15 (cmake) + Visual Studio 2015 w/ Intel Fortran 16 (cmake) + Visual Studio 2015 w/ Intel C, Fortran 2017 (cmake) + Visual Studio 2015 w/ MSMPI 8 (cmake) + Cygwin(CYGWIN_NT-6.1 2.8.0(0.309/5/3) + gcc and gfortran compilers (GCC 5.4.0) + (cmake and autotools) + + Windows 10 Visual Studio 2015 w/ Intel Fortran 16 (cmake) + Cygwin(CYGWIN_NT-6.1 2.8.0(0.309/5/3) + gcc and gfortran compilers (GCC 5.4.0) + (cmake and autotools) + + Windows 10 x64 Visual Studio 2015 w/ Intel Fortran 16 (cmake) + + Mac OS X Mavericks 10.9.5 Apple LLVM version 6.0 (clang-600.0.57) + 64-bit gfortran GNU Fortran (GCC) 4.9.2 + (wren/quail) Intel icc/icpc/ifort version 15.0.3 + + Mac OS X Yosemite 10.10.5 Apple LLVM version 6.1 (clang-602.0.53) + 64-bit gfortran GNU Fortran (GCC) 4.9.2 + (osx1010dev/osx1010test) Intel icc/icpc/ifort version 15.0.3 + + Mac OS X El Capitan 10.11.6 Apple LLVM version 7.3.0 (clang-703.0.29) + 64-bit gfortran GNU Fortran (GCC) 5.2.0 + (VM osx1011dev/osx1011test) Intel icc/icpc/ifort version 16.0.2 + + Mac OS Sierra 10.12.6 Apple LLVM version 8.1 (clang-802.0.42) + 64-bit gfortran GNU Fortran (GCC) 7.1.0 + (kite) Intel icc/icpc/ifort version 17.0.2 + +Tested Configuration Features Summary +===================================== + + In the tables below + y = tested + n = not tested in this release + C = Cluster + W = Workstation + x = not working in this release + dna = does not apply + ( ) = footnote appears below second table + <blank> = testing incomplete on this feature or platform + +Platform C F90/ F90 C++ zlib SZIP + parallel F2003 parallel +SunOS 5.11 32-bit n y/y n y y y +SunOS 5.11 64-bit n y/y n y y y +Windows 7 y y/y n y y y +Windows 7 x64 y y/y n y y y +Windows 7 Cygwin n y/n n y y y +Windows 7 x64 Cygwin n y/n n y y y +Windows 10 y y/y n y y y +Windows 10 x64 y y/y n y y y +Mac OS X Mavericks 10.9.5 64-bit n y/y n y y y +Mac OS X Yosemite 10.10.5 64-bit n y/y n y y y +Mac OS X El Capitan 10.11.6 64-bit n y/y n y y y +Mac OS Sierra 10.12.6 64-bit n y/y n y y y +AIX 6.1 32- and 64-bit n y/n n y y y +CentOS 6.7 Linux 2.6.32 x86_64 GNU y y/y y y y y +CentOS 6.7 Linux 2.6.32 x86_64 Intel n y/y n y y y +CentOS 6.7 Linux 2.6.32 x86_64 PGI n y/y n y y y +CentOS 7.1 Linux 3.10.0 x86_64 GNU y y/y y y y y +CentOS 7.1 Linux 3.10.0 x86_64 Intel n y/y n y y y +Linux 2.6.32-431.11.2.el6.ppc64 n y/n n y y y + +Platform Shared Shared Shared Thread- + C libs F90 libs C++ libs safe +SunOS 5.11 32-bit y y y y +SunOS 5.11 64-bit y y y y +Windows 7 y y y y +Windows 7 x64 y y y y +Windows 7 Cygwin n n n y +Windows 7 x64 Cygwin n n n y +Windows 10 y y y y +Windows 10 x64 y y y y +Mac OS X Mavericks 10.9.5 64-bit y n y y +Mac OS X Yosemite 10.10.5 64-bit y n y y +Mac OS X El Capitan 10.11.6 64-bit y n y y +Mac OS Sierra 10.12.6 64-bit y n y y +AIX 6.1 32- and 64-bit y n n y +CentOS 6.7 Linux 2.6.32 x86_64 GNU y y y y +CentOS 6.7 Linux 2.6.32 x86_64 Intel y y y y +CentOS 6.7 Linux 2.6.32 x86_64 PGI y y y y +CentOS 7.1 Linux 3.10.0 x86_64 GNU y y y y +CentOS 7.1 Linux 3.10.0 x86_64 Intel y y y y +Linux 2.6.32-431.11.2.el6.ppc64 y y y y + +Compiler versions for each platform are listed in the preceding +"Supported Platforms" table. + + +More Tested Platforms +===================== +The following platforms are not supported but have been tested for this release. + + Linux 2.6.32-573.22.1.el6 g95 (GCC 4.0.3 (g95 0.94!) + #1 SMP x86_64 GNU/Linux + (mayll) + + Debian8.4.0 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1 x86_64 GNU/Linux + gcc (Debian 4.9.2-10) 4.9.2 + GNU Fortran (Debian 4.9.2-10) 4.9.2 + (cmake and autotools) + + Fedora24 4.7.2-201.fc24.x86_64 #1 SMP x86_64 x86_64 x86_64 GNU/Linux + gcc (GCC) 6.1.1 20160621 (Red Hat 6.1.1-3) + GNU Fortran (GCC) 6.1.1 20160621 (Red Hat 6.1.1-3) + (cmake and autotools) + + CentOS 7.2 3.10.0-327.28.2.el7.x86_64 #1 SMP x86_64 x86_64 x86_64 GNU/Linux + gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4) + GNU Fortran (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4) + (cmake and autotools) + + Ubuntu 16.04 4.4.0-38-generic #62-Ubuntu SMP x86_64 GNU/Linux + gcc (Ubuntu 5.4.0-6ubuntu1~16.04.2) 5.4.0 + GNU Fortran (Ubuntu 5.4.0-6ubuntu1~16.04.2) 5.4.0 + (cmake and autotools) + + +Known Problems +============== + + The dynamically loaded plugin test libraries require undefined references + to HDF5 functions to be resolved at runtime in order to function properly. + With autotools on CYGWIN this results in build errors, and we have not + found a solution that satisfies both. Therefore the dynamically loaded + plugin tests have been disabled on CYGWIN. + + Mac OS X 10.13 added additional subdirectory structure in .libs for shared + libraries. Consequently "make check" will fail testing java and dynamically + loaded plugin test libraries attempting to copy files from the previous + locations in .libs directories. This will be addressed in the next release + when support for the Mac OS X 10.13 platform is added. + + 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. + + +%%%%1.8.19%%%% + + +HDF5 version 1.8.19 released on 2017-06-15 +================================================================================ + +INTRODUCTION +============ + +This document describes the differences between HDF5-1.8.18 and +HDF5-1.8.19, and contains information on the platforms tested and +known problems in HDF5-1.8.19. +For more details, see the files HISTORY-1_0-1_8_0_rc3.txt +and HISTORY-1_8.txt in the release_docs/ directory of the HDF5 source. + +Links to the HDF5 1.8.19 source code, documentation, and additional materials +can be found on the HDF5 web page at: + + https://support.hdfgroup.org/HDF5/ + +The HDF5 1.8.19 release can be obtained from: + + https://support.hdfgroup.org/HDF5/release/obtain518.html + +User documentation for 1.8.19 can be accessed directly at this location: + + https://support.hdfgroup.org/HDF5/doc1.8/ + +New features in the HDF5-1.8.x release series, including brief general +descriptions of some new and modified APIs, are described in the "What's New +in 1.8.0?" document: + + https://support.hdfgroup.org/HDF5/doc/ADGuide/WhatsNew180.html + +All new and modified APIs are listed in detail in the "HDF5 Software Changes +from Release to Release" document, in the section "Release 1.8.19 (current +release) versus Release 1.8.18 + + https://support.hdfgroup.org/HDF5/doc1.8/ADGuide/Changes.html + +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, Languages, and Compilers +- Bug Fixes since HDF5-1.8.19 +- Supported Platforms +- Supported Configuration Features Summary +- More Tested Platforms +- Known Problems + + +New Features +============ + + Configuration + -------------- + - CMake in the Tools + + User-defined filters on Windows require that tools be built + with shared libraries. + + CMake command code added to build tools with + shared libraries as well as with static libraries. + + (ADB - 2017/02/07, HDFFV-10123) + + + Library + ------- + - H5PL package + + Users would like to be able to set the plugin path programmatically + instead of through the environment variable. + + H5PL package obtained new APIs for manipulating the entries of + the plugin path table. The new APIs are; + H5PLappend - Insert a plugin path at the end of the list. + H5PLprepend - Insert a plugin path at the beginning of the list. + H5PLreplace - Replace the path at the specified index. + H5PLinsert - Insert a plugin path at the specified index, moving + other paths after the index. + H5PLremove - Remove the plugin path at the specifed index and + compacting the list. + H5PLget - Query the plugin path at the specified index. + H5PLsize - Query the size of the current list of plugin paths. + + (ADB - 2017/04/04, HDFFV-10143) + + - H5Dget_chunk_storage_size + + The storage size of a chunk in the file is needed to determine the size + of the buffer to be allocated for reading a chunk directly from a file. + + New API function gets the size in bytes currently allocated within a + file for a raw data chunk in a dataset. This function was added to get + the chunk size in support of the implementation of H5DOread_chunks, but + may also be useful for other purposes. + + (VC - 2017/05/02, HDFFV-9934) + + C++ API + ------- + - The following C++ API wrappers have been added to the C++ Library: + // Determines if a name exists. + H5Location::nameExists() - C API H5Lexists() + + // Checks if an ID is valid. + IdComponent::isValid() - C API H5Iis_valid() + + // Sets the number of soft or user-defined links that can be + // traversed before a failure occurs. + LinkAccPropList::setNumLinks() - C API H5Pset_nlinks() + + // Gets the number of soft or user-defined link traversals allowed + LinkAccPropList::getNumLinks() - C API H5Pget_nlinks() + + // Returns a copy of the creation property list of a datatype. + DataType::getCreatePlist() - C API H5Tget_create_plist() + + // Opens an object within a location, regarless its type. + H5Location::openObjId() - C API H5Oopen() + H5Location::openObjId() - C API H5Oopen() + + // Closes an object opened by openObjId(). + H5Location::closeObjId() - C API H5Oclose() + + // Gets general information about a file. + H5File::getFileInfo() - C API H5Fget_info() + + // Returns the header version of an HDF5 object. + H5Object::objVersion() - C API H5Oget_info() + + (BMR, 2017/05/13, HDFFV-10004, HDFFV-10156) + + - New class LinkAccPropList is added for link access proprety list + + (BMR, 2017/05/13, HDFFV-10156) + + High-Level APIs + --------------- + - H5DOread_chunk + + Users wanted to read compressed data directly from a file without any + processing by the HDF5 data transfer pipeline, just as they were able + to write it directly to a file with H5DOwrite_chunk. + + New API function, corresponding to existing function H5DOwrite_chunk. + H5DOread_chunk reads a raw data chunk directly from a chunked dataset + in the file into the application buffer, bypassing the library’s internal + data transfer pipeline, including filters. + + (VC - 2017/05/02, HDFFV-9934) + + +Support for New Platforms, Languages, and Compilers +=================================================== + + - Added OpenMPI 2.0.1 compiled with GCC 4.9.3 + + +Bug Fixes since HDF5-1.8.18 +=========================== + + Configuration + ------------- + - Support for Fortran shared libraries on OS X with autotools now + works. Cmake builds still disables Fortran shared libraries on OS X. + (MSB - 2017/04/30, HDFFV-2772) + + + Library + ------- + - bitfield datatypes + + bitfield datatypes did not fully support endianness of the data. + + Improved the endianness of bitfield datatypes by adding missing functional + code. This code used integer types as a template. + + (ADB - 2017/05/12, HDFFV-10186) + + - Newly created datasets with H5D_COMPACT layout failed to open after + several H5Dopen/H5Dclose cycles. + + The layout "dirty" flag for a compact dataset is now properly reset + before flushing the message. + + (VC - 2017/05/11, HDFFV-10051) + - Missing #ifdef __cplusplus macros were added to the generated H5Epubgen.h file. + + (DER - 2017/04/25, HDFFV-9638) + + + Tools + ----- + - h5repack + + h5repack did not maintain the creation order flag of the root + group. + + Improved h5repack by reading the creation order and applying the + flag to the new root group. Also added arguments to set the + order and index direction, which applies to the traversing of the + original file, on the command line. + + (ADB - 2017/05/26, HDFFV-8611) + + - h5diff + + h5diff failed to account for strpad type and null terminators + of char strings. Also, h5diff failed to account for string length + differences and would give a different result depending on file + order in the command line. + + Improved h5diff compare of strings and arrays by adding a check for + string lengths and if the strpad was null filled. + + (ADB - 2017/05/18, HDFFV-9055, HDFFV-10128) + + - h5diff + + h5diff help text about epsilon comparison was confusing. + + Changed h5diff help text to indicate that the 'a' refers to the + datapoint in file1 and 'b' refers to the datapoint value in file2. + + (ADB - 2017/05/16, HDFFV-9995) + + - h5diff + + h5diff did not report user-defined filter data differences correctly. + + Improved h5diff compare of user-defined filter data by reporting an + error if the user-defined filter plugin cannot be found. + + (ADB - 2017/01/18, HDFFV-9994) + C++ API + ------- + - The class hierarchy is revised to better reflect the HDF5 model. + Class H5File is now derived from class Group instead of H5Location. + Class Attribute is now derived from H5Location instead of IdComponent. + Wrappers of H5A APIs in H5Location are now duplicated in H5Object, + the original wrappers in H5Location will be deprecated in future + releases. + + (BMR - 2017/05/15, HDFFV-10156) + + + +Supported Platforms +=================== +The following platforms are supported and have been tested for this release. +They are built with the configure process unless specified otherwise. + + Linux 2.6.32-573.22.1.el6 GNU C (gcc), Fortran (gfortran), C++ (g++) + #1 SMP x86_64 GNU/Linux compilers: + (platypus/mayll) Version 4.4.7 20120313 + Versions 4.9.3, 5.2.0, 6.2.0 + PGI C, Fortran, C++ for 64-bit target on + x86-64; + Version 16.10-0 + Intel(R) C (icc), C++ (icpc), Fortran (icc) + compilers: + Version 17.0.0.098 Build 20160721 + MPICH 3.1.4 compiled with GCC 4.9.3 + OpenMPI 2.0.1 compiled with GCC 4.9.3 + + Linux 2.6.32-573.18.1.el6 gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16) + #1 SMP ppc64 GNU/Linux g++ (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16) + (ostrich) GNU Fortran (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16) + 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: + (kituo/moohan) Version 4.8.5 20150623 (Red Hat 4.8.5-4) + Versions 4.9.3, 5.3.0, 6.2.0 + Intel(R) C (icc), C++ (icpc), Fortran (icc) + compilers: + Version 17.0.4.196 Build 20170411 + MPICH 3.1.4 compiled with GCC 4.9.3 + + SunOS 5.11 32- and 64-bit Sun C 5.12 SunOS_sparc + (emu) Sun Fortran 95 8.6 SunOS_sparc + Sun C++ 5.12 SunOS_sparc + Windows 7 Visual Studio 2012 w/ Intel Fortran 15 (cmake) + Visual Studio 2013 w/ Intel Fortran 15 (cmake) + Visual Studio 2015 w/ Intel Fortran 16 (cmake) + + Windows 7 x64 Visual Studio 2012 w/ Intel Fortran 15 (cmake) + Visual Studio 2013 w/ Intel Fortran 15 (cmake) + Visual Studio 2015 w/ Intel Fortran 16 (cmake) + Visual Studio 2015 w/ Intel C, Fortran 2017 (cmake) + Visual Studio 2015 w/ MSMPI 8 (cmake) + Cygwin(CYGWIN_NT-6.1 2.8.0(0.309/5/3) + gcc and gfortran compilers (GCC 5.4.0) + (cmake and autotools) + + Windows 10 Visual Studio 2015 w/ Intel Fortran 16 (cmake) + Cygwin(CYGWIN_NT-6.1 2.8.0(0.309/5/3) + gcc and gfortran compilers (GCC 5.4.0) + (cmake and autotools) + + Windows 10 x64 Visual Studio 2015 w/ Intel Fortran 16 (cmake) + + Mac OS X Mt. Lion 10.8.5 Apple LLVM version 5.1 (clang-503.0.40) + 64-bit gfortran GNU Fortran (GCC) 4.8.2 + (swallow/kite) Intel icc/icpc/ifort version 15.0.3 + + Mac OS X Mavericks 10.9.5 Apple LLVM version 6.0 (clang-600.0.57) + 64-bit gfortran GNU Fortran (GCC) 4.9.2 + (wren/quail) Intel icc/icpc/ifort version 15.0.3 + + Mac OS X Yosemite 10.10.5 Apple LLVM version 6.1 (clang-602.0.53) + 64-bit gfortran GNU Fortran (GCC) 4.9.2 + (osx1010dev/osx1010test) Intel icc/icpc/ifort version 15.0.3 + + Mac OS X El Capitan 10.11.4 Apple LLVM version 7.3.0 (clang-703.0.29) + 64-bit gfortran GNU Fortran (GCC) 5.2.0 + (VM osx1011dev/osx1011test) Intel icc/icpc/ifort version 16.0.2 + + +Tested Configuration Features Summary +===================================== + + In the tables below + y = tested + n = not tested in this release + C = Cluster + W = Workstation + x = not working in this release + dna = does not apply + ( ) = footnote appears below second table + <blank> = testing incomplete on this feature or platform +Platform C F90/ F90 C++ zlib SZIP + parallel F2003 parallel +SunOS 5.11 32-bit n y/y n y y y +SunOS 5.11 64-bit n y/y n y y y +Windows 7 y y/y n y y y +Windows 7 x64 y y/y n y y y +Windows 7 Cygwin n y/n n y y y +Windows 7 x64 Cygwin n y/n n y y y +Windows 10 y y/y n y y y +Windows 10 x64 y y/y n y y y +Mac OS X Mountain Lion 10.8.5 64-bit n y/y n y y y +Mac OS X Mavericks 10.9.5 64-bit n y/y n y y y +Mac OS X Yosemite 10.10.5 64-bit n y/y n y y y +AIX 6.1 32- and 64-bit n y/n n y y y +CentOS 6.7 Linux 2.6.32 x86_64 GNU y y/y y y y y +CentOS 6.7 Linux 2.6.32 x86_64 Intel n y/y n y y y +CentOS 6.7 Linux 2.6.32 x86_64 PGI n y/y n y y y +CentOS 7.1 Linux 3.10.0 x86_64 GNU y y/y y y y y +CentOS 7.1 Linux 3.10.0 x86_64 Intel n y/y n y y y +Linux 2.6.32-431.11.2.el6.ppc64 n y/n n y y y + +Platform Shared Shared Shared Thread- + C libs F90 libs C++ libs safe +SunOS 5.11 32-bit y y y y +SunOS 5.11 64-bit y y y y +Windows 7 y y y y +Windows 7 x64 y y y y +Windows 7 Cygwin n n n y +Windows 7 x64 Cygwin n n n y +Windows 10 y y y y +Windows 10 x64 y y y y +Mac OS X Mountain Lion 10.8.5 64-bit y n y y +Mac OS X Mavericks 10.9.5 64-bit y n y y +Mac OS X Yosemite 10.10.5 64-bit y n y y +AIX 6.1 32- and 64-bit y n n y +CentOS 6.7 Linux 2.6.32 x86_64 GNU y y y y +CentOS 6.7 Linux 2.6.32 x86_64 Intel y y y y +CentOS 6.7 Linux 2.6.32 x86_64 PGI y y y y +CentOS 7.1 Linux 3.10.0 x86_64 GNU y y y y +CentOS 7.1 Linux 3.10.0 x86_64 Intel y y y y +Linux 2.6.32-431.11.2.el6.ppc64 y y y y + +Compiler versions for each platform are listed in the preceding +"Supported Platforms" table. + + +More Tested Platforms +===================== +The following platforms are not supported but have been tested for this release. + + Linux 2.6.32-573.22.1.el6 g95 (GCC 4.0.3 (g95 0.94!) + #1 SMP x86_64 GNU/Linux + (mayll) + + Debian8.4.0 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1 x86_64 GNU/Linux + gcc (Debian 4.9.2-10) 4.9.2 + GNU Fortran (Debian 4.9.2-10) 4.9.2 + (cmake and autotools) + + Fedora24 4.7.2-201.fc24.x86_64 #1 SMP x86_64 x86_64 x86_64 GNU/Linux + gcc (GCC) 6.1.1 20160621 (Red Hat 6.1.1-3) + GNU Fortran (GCC) 6.1.1 20160621 (Red Hat 6.1.1-3) + (cmake and autotools) + + CentOS 7.2 3.10.0-327.28.2.el7.x86_64 #1 SMP x86_64 x86_64 x86_64 GNU/Linux + gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4) + GNU Fortran (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4) + (cmake and autotools) + + Ubuntu 16.04 4.4.0-38-generic #62-Ubuntu SMP x86_64 GNU/Linux + gcc (Ubuntu 5.4.0-6ubuntu1~16.04.2) 5.4.0 + GNU Fortran (Ubuntu 5.4.0-6ubuntu1~16.04.2) 5.4.0 + (cmake and autotools) + + +Known Problems +============== + + The dynamically loaded plugin test libraries require undefined references + to HDF5 functions to be resolved at runtime in order to function properly. + With autotools on CYGWIN this results in build errors, and we have not + found a solution that satisfies both. Therefore the dynamically loaded + plugin tests have been disabled on CYGWIN. + + 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. + + +%%%%1.8.18%%%% + + +HDF5 version 1.8.18 released on 2016-11-14 +================================================================================ + +INTRODUCTION +============ + +This document describes the differences between HDF5-1.8.17 and +HDF5-1.8.18, and contains information on the platforms tested and +known problems in HDF5-1.8.18. +For more details, see the files HISTORY-1_0-1_8_0_rc3.txt +and HISTORY-1_8.txt in the release_docs/ directory of the HDF5 source. + +Links to the HDF5 1.8.18 source code, documentation, and additional materials +can be found on the HDF5 web page at: + + https://support.hdfgroup.org/HDF5/ + +The HDF5 1.8.18 release can be obtained from: + + https://support.hdfgroup.org/HDF5/release/obtain518.html + +User documentation for 1.8.18 can be accessed directly at this location: + + https://support.hdfgroup.org/HDF5/doc1.8/ + +New features in the HDF5-1.8.x release series, including brief general +descriptions of some new and modified APIs, are described in the "What's New +in 1.8.0?" document: + + https://support.hdfgroup.org/HDF5/doc/ADGuide/WhatsNew180.html + +All new and modified APIs are listed in detail in the "HDF5 Software Changes +from Release to Release" document, in the section "Release 1.8.18 (current +release) versus Release 1.8.17 + + https://support.hdfgroup.org/HDF5/doc1.8/ADGuide/Changes.html + +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, Languages, and Compilers +- Bug Fixes since HDF5-1.8.17 +- Supported Platforms +- Supported Configuration Features Summary +- More Tested Platforms +- Known Problems + + +New Features +============ + + Configuration + ------------- + + - CMake: Added NAMESPACE hdf5:: to package configuration files to allow + projects using installed HDF5 binaries built with CMake to link with + them without specifying the HDF5 library location via IMPORTED_LOCATION. + + (ADB, 2016/10/17, HDFFV-10003) + + + - CMake: Changed the CTEST_BUILD_CONFIGURATION option to + CTEST_CONFIGURATION_TYPE as recommended by the CMake documentation. + + (ADB, 2016/10/17, HDFFV-9971) + + - CMake: Added support for GIT + + (ADB, 2016/07/12) + + + Library + ------- + - None + + + Parallel Library + ---------------- + - None + + + Tools + ----- + - None + + + High-Level APIs + --------------- + - None + + + Fortran API + ----------- + - None + + + C++ API + ------- + - None + + +Support for New Platforms, Languages, and Compilers +=================================================== + + + +Bug Fixes since HDF5-1.8.17 +=========================== + + Configuration + ------------- + + - Fixed a problem preventing HDF5 to be built on 32-bit CYGWIN by + condensing cygwin configuration files into a single file and + removing outdated compiler settings. + + (ABD, 2016/07/12, HDFFV-9946) + + + - CMake: Fixed a command length overflow error by converting custom + commands inside CMakeTest.cmake files into regular dependencies and + targets. + + (ABD, 2016/07/12, HDFFV-9939) + + + - CMake: Fixed a timeout error that would occasionally occur when running + the virtual file driver tests simultaneously due to test directory and file + name collisions. + + (ABD, 2016/09/19, HDFFV-9431) + + + Library + ------- + + - Fixed a memory leak that would occur when the library allocated memory + for an external file prefix (H5Pset_efile_prefix) and failed to free it. + + (DER, 2016/04/29) + + + - Fixed an error that would occur when calling H5Adelete on an attribute + which is attached to an externally linked object in the target file and + whose datatype is a committed datatype in the main file. + + (VC, 2016-07-04, HDFFV-9940) + + + - Fixed a problem where a plugin compiled into a DLL in the default plugin + directory could not be found by the HDF5 library at runtime on Windows + when the HDF5_PLUGIN_PATH environment variable was not set. + + (ABD, 2016/08/01, HDFFV-9706) + + + - Fixed an issue where H5Pset_alignment could result in misaligned blocks + with some input combinations, causing an assertion failure in debug mode. + + (NAF, 2016/08/11, HDFFV-9948) + + + - A number of issues were fixed when reading/writing from/to corrupted + files to ensure that the library fails gracefully in these cases: + + * Writing to a corrupted file that has an object message which is + incorrectly marked as sharable on disk results in a buffer overflow / + invalid write instead of a clean error message. + + * Decoding data from a corrupted file with a dataset encoded with the + H5Z_NBIT decoding can result in a code execution vulnerability under + the context of the application using the HDF5 library. + + * When decoding an array datatype from a corrupted file, the HDF5 library + fails to return an error in production if the number of dimensions + decoded is greater than the maximum rank. + + * When decoding an "old style" array datatype from a corrupted file, the + HDF5 library fails to return an error in production if the number of + dimensions decoded is greater than the maximum rank. + + (NAF, 2016/10/06, HDFFV-9950, HDFFV-9951, HDFFV-9992, HDFFV-9993) + + + - Fixed an error that would occur when copying an object with an attribute + which is a compound datatype consisting of a variable length string. + + (VC, 2016-10-17, HDFFV-7991) + + + Parallel Library + ---------------- + + - Fixed a bug that could occur when allocating a chunked dataset in parallel + with an alignment set and an alignment threshold greater than the chunk + size but less than or equal to the raw data aggregator size. + + (NAF, 2016/08/11, HDFFV-9969) + + + Performance + ------------- + - None + + + Tools + ----- + + - Fixed an error in the compiler wrapper scripts (h5cc, h5fc, et al.) + in which they would erroneously drop the file argument specified via + the -o flag when the -o flag was specified before the -c flag on the + command line, resulting in a failure to compile. + + (LRK, 2016/06/08, HDFFV-9938, HDFFV-9530) + + + - h5repack User Defined (UD) filter parameters were not parsed correctly. + + The UD filter parameters were not being parsed correctly. Reworked coding + section to parse the correct values and verify number of parameters. + + (ADB, 2016/10/19, HDFFV-9996, HDFFV-9974, HDFFV-9515, HDFFV-9039) + + + Fortran API + ----------- + + - Fortran library fails to compile and fails tests with NAG compiler. + + * Removed the non-standard assumption that KIND=SIZEOF, in the HDF5 + configure programs. + * Removed Fortran 66 character/integer conversions from tests. + * Removed the use of C_SIZEOF in the test programs + * Changed to using STORAGE_SIZE in the test programs if available. Otherwise, + uses C_SIZEOF or SIZEOF. + + (MSB, 2016/9/22, HDFFV-9973) + + + - Fortran segfaults for F03 tests with NAG compiler + + * Removed INTENT(OUT) from 'fillvalue' in F2003 interface + for H5Pget_fill_value_f. + + (MSB, 2016/9/22, HDFFV-9980) + + + C++ API + ------- + + - The macro H5_NO_NAMESPACE is deprecated from the HDF5 C++ API library. + In future releases, the macros H5_NO_STD and OLD_HEADER_FILENAME may + also be removed. + + (BMR, 2016/10/27, HDFFV-9532) + + + High-Level APIs: + --------------- + + - The high-level API Packet Table (PT) did not write data correctly when + the datatype is a compound type that has string type as one of the + members. This problem started in 1.8.15, after the fix of HDFFV-9042 + was applied, which caused the Packet Table to use native type to access + the data. It should be up to the application to specify whether the + buffer to be read into memory in the machine’s native architecture. + Thus, the PT is fixed to not use native type but to make a copy of the + user's provided datatype during creation or the packet table's datatype + during opening. If an application wishes to use native type to read the + data, then the application will request that. However, the Packet Table + doesn't provide a way to specify memory datatype in this release. This + feature will be available in future releases, HDFFV-10023. + + (BMR, 2016/10/27, HDFFV-9758) + + + Fortran High-Level APIs: + ------------------------ + - None + + + Testing + ------- + - None + + +Supported Platforms +=================== +The following platforms are supported and have been tested for this release. +They are built with the configure process unless specified otherwise. + + Linux 2.6.32-573.22.1.el6 GNU C (gcc), Fortran (gfortran), C++ (g++) + #1 SMP x86_64 GNU/Linux compilers: + (platypus/mayll) Version 4.4.7 20120313 + Versions 4.8.4, 4.9.3, 5.2.0 + PGI C, Fortran, C++ for 64-bit target on + x86-64; + Version 15.7-0 + Intel(R) C (icc), C++ (icpc), Fortran (icc) + compilers: + Version 15.0.3.187 Build 20150407 + MPICH 3.1.4 compiled with GCC 4.9.3 + + Linux 2.6.32-573.18.1.el6 gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16) + #1 SMP ppc64 GNU/Linux g++ (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16) + (ostrich) GNU Fortran (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16) + 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: + (kituo/moohan) Version 4.8.5 20150623 (Red Hat 4.8.5-4) + Versions 4.9.3, 5.2.0 + Intel(R) C (icc), C++ (icpc), Fortran (icc) + compilers: + Version 15.0.3.187 Build 20150407 + MPICH 3.1.4 compiled with GCC 4.9.3 + + SunOS 5.11 32- and 64-bit Sun C 5.12 SunOS_sparc + (emu) Sun Fortran 95 8.6 SunOS_sparc + Sun C++ 5.12 SunOS_sparc + + Windows 7 Visual Studio 2012 w/ Intel Fortran 15 (cmake) + Visual Studio 2013 w/ Intel Fortran 15 (cmake) + Visual Studio 2015 w/ Intel Fortran 16 (cmake) + Cygwin(CYGWIN_NT-6.1 2.2.1(0.289/5/3) gcc(4.9.3) compiler and gfortran) + (cmake and autotools) + + Windows 7 x64 Visual Studio 2012 w/ Intel Fortran 15 (cmake) + Visual Studio 2013 w/ Intel Fortran 15 (cmake) + Visual Studio 2015 w/ Intel Fortran 16 (cmake) + + Windows 10 Visual Studio 2015 w/ Intel Fortran 16 (cmake) + + Windows 10 x64 Visual Studio 2015 w/ Intel Fortran 16 (cmake) + + Mac OS X Mt. Lion 10.8.5 Apple LLVM version 5.1 (clang-503.0.40) + 64-bit gfortran GNU Fortran (GCC) 4.8.2 + (swallow/kite) Intel icc/icpc/ifort version 15.0.3 + + Mac OS X Mavericks 10.9.5 Apple LLVM version 6.0 (clang-600.0.57) + 64-bit gfortran GNU Fortran (GCC) 4.9.2 + (wren/quail) Intel icc/icpc/ifort version 15.0.3 + + Mac OS X Yosemite 10.10.5 Apple LLVM version 6.1 (clang-602.0.53) + 64-bit gfortran GNU Fortran (GCC) 4.9.2 + (osx1010dev/osx1010test) Intel icc/icpc/ifort version 15.0.3 + + Mac OS X El Capitan 10.11.4 Apple LLVM version 7.3.0 (clang-703.0.29) + 64-bit gfortran GNU Fortran (GCC) 5.2.0 + (VM osx1011dev/osx1011test) Intel icc/icpc/ifort version 16.0.2 + + +Tested Configuration Features Summary +===================================== + + In the tables below + y = tested + n = not tested in this release + C = Cluster + W = Workstation + x = not working in this release + dna = does not apply + ( ) = footnote appears below second table + <blank> = testing incomplete on this feature or platform + +Platform C F90/ F90 C++ zlib SZIP + parallel F2003 parallel +SunOS 5.11 32-bit n y/y n y y y +SunOS 5.11 64-bit n y/y n y y y +Windows 7 y y/y n y y y +Windows 7 x64 y y/y n y y y +Windows 7 Cygwin n y/y n y y n +Windows 10 n y/y n y y y +Windows 10 x64 n y/y n y y y +Mac OS X Mountain Lion 10.8.5 64-bit n y/y n y y y +Mac OS X Mavericks 10.9.5 64-bit n y/y n y y y +Mac OS X Yosemite 10.10.5 64-bit n y/y n y y y +AIX 6.1 32- and 64-bit n y/n n y y y +CentOS 6.7 Linux 2.6.32 x86_64 GNU y y/y y y y y +CentOS 6.7 Linux 2.6.32 x86_64 Intel n y/y n y y y +CentOS 6.7 Linux 2.6.32 x86_64 PGI n y/y n y y y +CentOS 7.1 Linux 3.10.0 x86_64 GNU y y/y y y y y +CentOS 7.1 Linux 3.10.0 x86_64 Intel n y/y n y y y +Linux 2.6.32-431.11.2.el6.ppc64 n y/n n y y y + +Platform Shared Shared Shared Thread- + C libs F90 libs C++ libs safe +SunOS 5.11 32-bit y y y y +SunOS 5.11 64-bit y y y y +Windows 7 y y y y +Windows 7 x64 y y y y +Windows 7 Cygwin n n n y +Windows 10 y y y y +Windows 10 x64 y y y y +Mac OS X Mountain Lion 10.8.5 64-bit y n y y +Mac OS X Mavericks 10.9.5 64-bit y n y y +Mac OS X Yosemite 10.10.5 64-bit y n y y +AIX 6.1 32- and 64-bit y n n y +CentOS 6.7 Linux 2.6.32 x86_64 GNU y y y y +CentOS 6.7 Linux 2.6.32 x86_64 Intel y y y y +CentOS 6.7 Linux 2.6.32 x86_64 PGI y y y y +CentOS 7.1 Linux 3.10.0 x86_64 GNU y y y y +CentOS 7.1 Linux 3.10.0 x86_64 Intel y y y y +Linux 2.6.32-431.11.2.el6.ppc64 y y y y + +Compiler versions for each platform are listed in the preceding +"Supported Platforms" table. + + +More Tested Platforms +===================== +The following platforms are not supported but have been tested for this release. + + Linux 2.6.32-573.22.1.el6 g95 (GCC 4.0.3 (g95 0.94!) + #1 SMP x86_64 GNU/Linux + (platypus) + + Debian8.4.0 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1 x86_64 GNU/Linux + gcc (Debian 4.9.2-10) 4.9.2 + GNU Fortran (Debian 4.9.2-10) 4.9.2 + (cmake and autotools) + + Fedora24 4.7.2-201.fc24.x86_64 #1 SMP x86_64 x86_64 x86_64 GNU/Linux + gcc (GCC) 6.1.1 20160621 (Red Hat 6.1.1-3) + GNU Fortran (GCC) 6.1.1 20160621 (Red Hat 6.1.1-3) + (cmake and autotools) + + CentOS 7.2 3.10.0-327.28.2.el7.x86_64 #1 SMP x86_64 x86_64 x86_64 GNU/Linux + gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4) + GNU Fortran (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4) + (cmake and autotools) + + Ubuntu 16.04 4.4.0-38-generic #62-Ubuntu SMP x86_64 GNU/Linux + gcc (Ubuntu 5.4.0-6ubuntu1~16.04.2) 5.4.0 + GNU Fortran (Ubuntu 5.4.0-6ubuntu1~16.04.2) 5.4.0 + (cmake and autotools) + + +Known Problems +============== +* On windows platforms in debug configurations, the VFD flush1 tests will fail + with the split and multi VFD drivers. These tests will display a modal debug + dialog which must be answered or wait for the test timeout to expire. + (ADB - 2014/06/23 - HDFFV-8851) + +* CLANG compiler with the options -fcatch-undefined-behavior and -ftrapv + catches some undefined behavior in the alignment algorithm of the macro DETECT_I + in H5detect.c (Issue 8147). Since the algorithm is trying to detect the alignment + of integers, ideally the flag -fcatch-undefined-behavior shouldn't to be used for + H5detect.c. In the future, we can separate flags for H5detect.c from the rest of + the library. (SLU - 2013/10/16) + +* Make provided by Solaris fails in "make check". Solaris users should use + gmake to build and install the HDF5 software. (AKC - 2013/10/08 - HDFFV-8534) + +* The C++ and FORTRAN bindings are not currently working on FreeBSD with the + native release 8.2 compilers (4.2.1), but are working with gcc 4.6 from the + ports (and probably gcc releases after that). + (QAK - 2012/10/19) + +* The following h5dump test case fails in BG/P machines (and potentially other + machines that use a command script to launch executables): + + h5dump --no-compact-subset -d "AHFINDERDIRECT::ah_centroid_t[0] it=0 tl=0" + tno-subset.h5 + + This is due to the embedded spaces in the dataset name being interpreted + by the command script launcher as meta-characters, thus passing three + arguments to h5dump's -d flag. The command passes if run by hand, just + not via the test script. + (AKC - 2012/05/03) + +* The STDIO VFD does not work on some architectures, possibly due to 32/64 + bit or large file issues. The basic STDIO VFD test is known to fail on + 64-bit SunOS 5.10 on SPARC when built with -m64 and 32-bit OS X/Darwin + 10.7.0. The STDIO VFD test has been disabled while we investigate and + a fix should appear in a future release. + (DER - 2011/10/14 - HDFFV-8235) + +* h5diff can report inconsistent results when comparing datasets of enum type + that contain invalid values. This is due to how enum types are handled in + the library and will be addressed in a future release. + (DER - 2011/10/14 - HDFFV-7527) + +* The links test can fail under the stdio VFD due to some issues with external + links. This will be investigated and fixed in a future release. + (DER - 2011/10/14 - HDFFV-7768) + +* After the shared library support was fixed for some bugs, it was discovered + that "make prefix=XXX install" no longer works for shared libraries. It + still works correctly for static libraries. Therefore, if you want to + install the HDF5 shared libraries in a location such as /usr/local/hdf5, + you need to specify the location via the --prefix option during configure + time. E.g, ./configure --prefix=/usr/local/hdf5 ... + (AKC - 2011/05/07 - HDFFV-7583) + +* The parallel test, t_shapesame, in testpar/, may run for a long time and may + be terminated by the alarm signal. If that happens, one can increase the + alarm seconds (default is 1200 seconds = 20 minutes) by setting the + environment variable, $HDF5_ALARM_SECONDS, to a larger value such as 3600 + (60 minutes). Note that the t_shapesame test may fail in some systems + (see the "While working on the 1.8.6 release..." problem below). If + it does, it will waste more time if $HDF5_ALARM_SECONDS is set + to a larger value. + (AKC - 2011/05/07) + +* Shared Fortran libraries are not quite working on AIX. While they are + generated when --enable-shared is specified, the fortran and hl/fortran + tests fail. the issue. HL and C++ shared libraries should now be + working as intended, however. + (MAM - 2011/04/20) + +* While working on the 1.8.6 release of HDF5, a bug was discovered that can + occur when reading from a dataset in parallel shortly after it has been + written to collectively. The issue was exposed by a new test in the parallel + HDF5 test suite, but had existed before that. We believe the problem lies with + certain MPI implementations and/or file systems. + + We have provided a pure MPI test program, as well as a standalone HDF5 + program, that can be used to determine if this is an issue on your system. + They should be run across multiple nodes with a varying number of processes. + These programs can be found at: + http://www.hdfgroup.org/ftp/HDF5/examples/known_problems/ + (NAF - 2011/01/19) + +* All the VFL drivers aren't backward compatible. In H5FDpublic.h, the + structure H5FD_class_t changed in 1.8. There is new parameter added to + get_eoa and set_eoa callback functions. A new callback function + get_type_map was added in. The public function H5FDrealloc was taken + out in 1.8. The problem only happens when users define their own driver + for 1.6 and try to plug in 1.8 library. Because there's only one user + complaining about it, we (Elena, Quincey, and I) decided to leave it as + it is (see bug report #1279). Quincey will make a plan for 1.10. + (SLU - 2010/02/02) + +* The --enable-static-exec configure flag will only statically link libraries + if the static version of that library is present. If only the shared version + of a library exists (i.e., most system libraries on Solaris, AIX, and Mac, + for example, only have shared versions), the flag should still result in a + successful compilation, but note that the installed executables will not be + fully static. Thus, the only guarantee on these systems is that the + executable is statically linked with just the HDF5 library. + (MAM - 2009/11/04) + +* A dataset created or rewritten with a v1.6.3 library or after cannot be read + with the v1.6.2 library or before when the Fletcher32 EDC filter is enabled. + There was a bug in the calculation of the Fletcher32 checksum in the + library before v1.6.3; the checksum value was not consistent between big- + endian and little-endian systems. This bug was fixed in Release 1.6.3. + However, after fixing the bug, the checksum value was no longer the same as + before on little-endian system. Library releases after 1.6.4 can still read + datasets created or rewritten with an HDF5 library of v1.6.2 or before. + (SLU - 2005/06/30) + + %%%%1.8.17%%%% |