v4.0.0

Notable changes

• Implemented LE/USS dynamic function framework and C Lib Overrides,
  which enables the dynamic use of V2R5 LE posix functions and does not
  rely on V2R5 headers/sidedecks to build.
• Removed __fork() and its related code.
• Changed build.sh to always build both static and shared
  libraries, and adjusted options accordingly.
• Removed build.cache generated by build.sh.
• Fixed issue where getentropy() can return a buffer with null-entries.
• Fixed issue where libzoslib.so and zoslib-help doesn't load due to
  missing execute permissions.
• Added -mzos-target=zosv2r4 to default build flags.

v3.0.0

Notable changes:

• __sem_*() functions and atomic_*() functions moved from zos-base.h to
  zos-semaphore.h
• [BREAKING] zos-semaphore.h is no longer included in zos-base.h by
  default
• Enabled building with with clang compiler
• Added LESavStackAsync class to save and restore SP
• Added __dlcb_iterate() function to walk through list of dlcb objects
• Added __get_le_version() function to return the LE version string
• Added build.sh tool for conveniently building zoslib
• Fixed __zinit instance not being destroyed during exit-time
• Fixed __Cache object being accessed after it has been destroyed
• Added __get_cpu_model() function to get the system CPU model
• Fixed memory leak in *_mmap() functions
• Added functionality to optionally log memory allocations
• Added new memory functions __zalloc(), __zfree(), __zalloc_for_fd(),
  as *_mmap() functions will be deprecated once MAP_ANONYMOUS support is
  implemented in the future
• Fixed bug where init_tf_parms_t() did not initialize all parms to 0
• Added templates __subtractOne and __addOne for bitset
• Enabled __setlibpath to support ninja builds
• [BREAKING] __fork() function and related code removed
• [BREAKING] __setdebug() and __indebug() function and related code
  removed
• Added feature to override allocation function for logging memory usage
• Fixed bug in getentropy() where it intermittently returned a buffer
  with null-entries
• Fixed a bug where CMake will try to install into /usr

v2.1.0

Notable changes:

• Fix bug where memory address for size 4 GB gets stored as 0
• Add __set_backtrace_on_abort() used to enable or disable abort() from calling display_backtrace()
• Define == and != operators for pthread_t

Full Changelog: v2.0.0...v2.1.0

v2.0.0

Notable changes:

• Add __get_stack_start() and __iterate_stack_and_get() which can be used to get the stack start address for the current thread
• Add __is_stfle_available() which returns if STFLE instruction is available
• ZOSLIB will now be built as a shared library by default
• Add __is_vxf_available() which returns if the current z arch includes Vector Extension Facility
• Add __is_vef1_available() which returns if the current z arch includes Vector Enhancements Facility 1
• [MAJOR] New headers zos-bpx.h, zos-char-util.h, zos-io.h, zos-setlibpath.h, zos-tls.h added

Full Changelog: v1.1.0...v2.0.0

v1.1.0

Notable changes:

• overload comparison operators for pthread_t.
• add getexepath() which returns the executable path of a given
  process id.
• add get_num_online_cpus() which returns the number of online CPUs.
• add default constructor for __tlssim class.
• add __guess_fd_ue() and __guess_ue() which guess and returns the
  ccsid of a file or string.
• add __print_zoslib_help() which prints help information.
• add __update_envar_settings() which allows zoslib envars to be
  updated after zoslib is initialized.
• add __update_envar_names() which allows the names of zoslib envars
  to be changed after zoslib is initialized.
• add __get_os_level() and __is_os_level_at_or_above() which can be
  used to determine the current OS level.
• add __get_stack_start() and __iterate_stack_and_get() which can be
  used to get the stack start address for the current thread.
• add __is_stfle_available() which returns if STFLE instruction is
  available.
• ZOSLIB will now be built as a shared library by default.
• add __is_vxf_available() which returns if the current z arch
  includes Vector Extension Facility.
• add __is_vef1_available() which returns if the current z arch
  includes Vector Enhancements Facility 1.
• new headers zos-bpx.h, zos-char-util.h, zos-io.h, zos-setlibpath.h,
  zos-tls.h added.