v2.2.4

• Add language bindings for Ch Professional and Python 3.
• No longer squelch repeating messages when sent to different levels.
• Add support for logging to the Windows Event Log.
• Add support for building as WebAssembly/JS with Emscripten.
• Add support for building via VSCode Tasks.
• Add tags target to Makefile.
• Add sirtests++ test rig for testing the C++ wrapper.
• Add sir_isinitialized convenience function.
• Fix bug preventing rolling of ./-prefixed log files with no extension.
• Add test for rolling ./-prefixed log files with no extension.
• Add sir_geterrorinfo function for fine-grained error information.
• Add a helper script to rebuild all Docker CI images.
• Fix potential null pointer dereference in _sir_getchar on Windows.
• Fix compilation on AIX when SIR_SELFLOG is enabled.
• Add _sir_nprocs function to portably query processor count.
• Generate HTML cross-referenced source listing using GNU Global.
• Add in-place string mangling utilities:
  • strreplace - substring replacement
  • strcreplace - counting substring replacement
  • strremove - substring removal
  • strsqueeze - whitespace normalization
  • strredact - substring redaction
• Improve test runtime (by reducing test iterations).
• Add support for the Embarcadero Athens (RAD Studio 12, BCC 7.70) compiler.
• Allow overriding keyword for declaring thread local variables (-D_sir_thread_local=).
• Add SIR_NO_SHARED option to disable building or installing shared libraries.
• Add support for the CompCert-C and Chamois-CompCert compilers.
• Stricter REUSE3/SPDX compliance.
• Print thread IDs in hexadecimal format on NetBSD.
• Annotate shell scripts to appease ShellCheck.
• Add internal strcasestr implementation.
• Adjust compiler invocation in GitLab CI configuration.
• Improve CI testing on NetBSD and OpenBSD.
• Fix usage of automatic dependency information generated during the build.
• Update Doxygen to 1.9.8.
• Silence some warnings when building on IBM AIX using IBM XL C/C++.
• Update tooling and tested toolchains in documentation.
• General portability and performance improvements.
• General linter and static analyzer conformance improvements.

v2.2.3

• Fixed a bug that caused some log file messages to be truncated.
• Changed maximum message length to 4 KiB (4096 bytes).
• Added support for additional compilers and platforms.
• Added Oracle Lint to CI pipeline.
• General portability improvements.
• General linter and static analyzer conformance improvements.
• Now utilizes stdatomic.h under MSVC on version 17.4+ using /experimental:c11atomics.
• Added two additional tests.
• Optimized the primary code path for some really impressive performance gains.
  
  Some samples:
  
  

  Platform	Improvement vs. 2.2.2
  macOS 13.5.2 (x86_64)	+361%  ± 0.13﹪
  Arch 6.4.12 (x86_64)	+276%  ± 0.07﹪
  RHEL 9 (x86_64)	+256%  ± 0.03﹪
  Debian 12 (x86_64)	+217%  ± 0.09﹪
  macOS 13.5.1 (AArch64)	+213%  ± 0.12﹪
  Fedora 38 (x86_64)	+121%  ± 0.05﹪
  AIX 7.3 (POWER9)	+119%  ± 0.07﹪
  Debian 12 (AArch64)	+100%  ± 0.04﹪
  Windows 11 (x64_64)	+ 87%  ± 0.03﹪
  FreeBSD 13.2 (x86_x64)	+ 76%  ± 0.06﹪
  Windows 11 (AArch64)	+ 67%  ± 0.03﹪
  NetBSD 9.3 (ARM/A53)	+ 62%  ± 0.18﹪
  OpenWrt 23 (MIPS32/74Kc)	+ 6%  ± 3.14﹪

v2.2.2

• Added support for
  • Embarcadero C++ for Windows
  • GNU/Hurd
  • Older glibc versions
• Updated graphics, fixed typos in Doxygen comments (updated docs)
• Fixed some MSVC analyzer warnings

v2.2.1

• Many small bug fixes and internal improvements.
• Fixed building for IBM AIX using IBM XL C/C++ V16.1.
• Fixed building for Haiku using Clang.
• Cleaned up all ‑Wmissing‑prototypes ‑Wdouble‑promotion ‑Wfloat‑conversion warnings.
• Debug builds now use ‑g3 on most platforms.
• Improved the coverage of the test suite.
• Added a new thread pool implementation (not yet used by the library).

v2.2.0

• Many new platforms and toolchains are now supported. See the README for details.
• Plugin loader and sample plugin module implemented! In the near future, some standard plugins will be available as part of the library.
• Big performance gains through optimization and refactoring.
• Much improved support for syslog and added support for macOS' centralized logging facility (os_log). See sir_syslog_dest.
• Support for 256-color and RGB color modes:
  • sir_setcolormode
  • sir_makergb
  • sir_settextstyle
• Windows got a lot of love, and support for that platform is better than ever
  • A Visual Studio 2022 solution can now be found in the msvs directory with both x64 and arm64 configurations
• New macros in sir/ansimacros.h that can be used with libsir or anything
  that writes to stdio (printf, puts, etc.): printf(RED("Oh lawd, something " ULINE("awful") " has happened!\n");
• Test suite:
  • New and more vigorous tests
  • Now supports command-line arguments:
    • --list : lists all the available tests
    • --only: only run the specified tests
    • --leave-logs: leave log files behind for examination
    • --wait : wait for keypress before exiting
    • --perf : runs the performance benchmark test (normally skipped)
    • --version: shows the version of libsir the test suite was built with.
• Eliminated several bugs and potential memory leaks (Flawfinder, Valgrind, PVS Studio, Clang Analyzer, Cppcheck)
• More specific error codes and better error reporting
• New preprocessor defines:
  • SIR_ASSERT_ENABLED: if defined, libsir calls assert (note that if -DNDEBUG is present, this becomes a NOOP). If not defined and SIR_SELFLOG=1, libsir writes a red message to stderr containing the condition that would have asserted, along with the file, line, and function. This allows for fine-grain control over assertions.
  • SIR_NO_SYSTEM_LOGGERS: if defined, system logger support is completely disabled/compiled out. The entry points still exist, but they will return an error that the feature is disabled or unavailable.
  • SIR_NO_PLUGINS: The same as SIR_NO_SYSTEM_LOGGERS, but for the plugin system.
• Better and more thorough documentation.

v2.1.1

• fixed crash on macOS when handling OS errors
• added FreeBSD support
• fixed -Wstrict-prototype, -Wformat warnings
• fixed bug in Makefile (make clean was not deleting all intermediate files)
• disallow root/sudo running the test suite; some of the tests depend on file permissions being unavailable.

Version 1.0

This is the intial release of the complete overhaul of libsir (originally called sir). The tag name is technically incorrect–it is the first release so it's called 1.0, but the version of libsir internally is v2.1.0.

Future releases of libsir will be tagged starting with 2.1.1.