v1.9.1

What's Changed

• Fix Python manual timing example by @alxbilger in #1722
• Align benchmark::State to a cacheline. by @ckennelly in #1230
• Fix C4459: Rename a function parameter profiler_manager to avoid hiding the global declaration. by @fsb4000 in #1839
• Bump oldest supported Python to 3.10, eliminate setuptools-scm by @nicholasjng in #1842
• enable the /MP MSVC compiler argument for parallel compilation by @imrichardcole in #1846
• Added the functionality for a dry run benchmark called through the cli argument --benchmark_dry_run. by @dmah42 in #1851
• Version string correction in pkg-config files by @aespondac in #1858
• Add enum value from newest Windows SDK by @DKLoehr in #1859
• Fix spurious warning 'misc-use-anonymous-namespace' (#1860) by @codeinred in #1861
• Update user_guide.md by @aespondac in #1863
• upgrade bazel mods. requires c++14 for tests by @dmah42 in #1867
• Update nanobind_bazel to v2.2.0 by @nicholasjng in #1866
• bump googletest version to match bazel by @dmah42 in #1868
• Verify RegisterProfilerManager doesn't overwrite an existing registration by @xdje42 in #1837
• [#1487] ensure background color is preserved by @imrichardcole in #1865
• Add nb::is_flag() annotation to Counter::Flags by @nicholasjng in #1870
• Add a Python matrix to ensure the bindings build on all supported versions by @nicholasjng in #1871
• Declare a Python 3.13 toolchain, revert setup.py toolchain target sele… by @nicholasjng in #1876
• update standard to C++17 per C++ build support by @dmah42 in #1875
• Improve examples on ComputeStatistics by @guoci in #1881

New Contributors

• @alxbilger made their first contribution in #1722
• @fsb4000 made their first contribution in #1839
• @imrichardcole made their first contribution in #1846
• @aespondac made their first contribution in #1858
• @codeinred made their first contribution in #1861
• @guoci made their first contribution in #1881

Full Changelog: v1.9.0...v1.9.1

v1.9.0

What's Changed

breaking

• Ensure reported Time is walltime by removing spurious scaling by threads by @dmah42 in #1836

other

• Update benchmark Python bindings for nanobind 2.0, and update to nano… by @hawkinsp in #1817
• Revert to token authentication for PyPI wheel uploads by @nicholasjng in #1819
• Suppress invalid-offsetof warning for clang by @DKLoehr in #1821
• Use log2 now that NDK requires at least API 21 which includes it. by @dmah42 in #1822
• Update libs into .pre-commit-config.yaml by @mosfet80 in #1825
• Update nanobind into benchmark_deps.bzl by @mosfet80 in #1826
• Bump nanobind-bazel to v2.1.0, add stubgen target by @nicholasjng in #1824
• Move ProfilerManager Start/Stop routines closer to benchmark #1807 by @xdje42 in #1818
• Cache upd by @mosfet80 in #1830
• Update clang-format-lint-action by @mosfet80 in #1829
• chore: update perf_counters.cc by @eltociear in #1831

New Contributors

• @hawkinsp made their first contribution in #1817
• @DKLoehr made their first contribution in #1821
• @eltociear made their first contribution in #1831

Full Changelog: v1.8.5...v1.9.0

v1.8.5

What's Changed

• Improve compatibility with Hexagon hardware by @steven-johnson in #1785
• hotfix: Correct pypi-publishing action tag to v1.8.14 by @nicholasjng in #1791
• CMake: unbreak version handling for tarballs by @LebedevRI in #1793
• cycleclock: Fix type conversion to match function return type by @kraj in #1794
• bump standard to C++14 by @dmah42 in #1799
• Docs: Bump minimum required C++ version from C++11 to C++14 by @rschu1ze in #1800
• cycleclock: Fix type conversion to match function return type on riscv64 by @kraj in #1802
• [bazel] Use includes instead of strip_include_prefix by @alexkaratarakis in #1803
• Find libpfm dependency in installed CMake configs by @stephenswat in #1806
• Add -lkstat to the .pc for Solaris by @ccotter in #1801
• add PERF_FORMAT_TOTAL_TIME_{ENABLED,RUNNING} to support multiplexing by @dmah42 in #1814
• Clarify the difference between BENCHMARK_TEMPLATE_F and BENCHMARK_TEMPLATE_DEFINE_F + BENCHMARK_REGISTER_F by @jiawen in #1815
• [FR] Add API to provide custom profilers #1807 by @xdje42 in #1809

New Contributors

• @steven-johnson made their first contribution in #1785
• @kraj made their first contribution in #1794
• @rschu1ze made their first contribution in #1800
• @alexkaratarakis made their first contribution in #1803
• @stephenswat made their first contribution in #1806
• @ccotter made their first contribution in #1801
• @jiawen made their first contribution in #1815
• @xdje42 made their first contribution in #1809

Full Changelog: v1.8.4...v1.8.5

v1.8.4

What's Changed

• Audit MSVC references in cmake files to consider clang++ by @Maetveis in #1669
• Make json and csv output consistent. by @andreas-abel in #1662
• Update bazel.yml by @mosfet80 in #1671
• Fix building on MinGW: default WINVER is too old by @zm1060 in #1681
• Increase the kMaxIterations limit by @andreas-abel in #1668
• Set -Wno-unused-variable for tests by @oontvoo in #1682
• Add no-unititialized-variable to tests by @dmah42 in #1683
• Add Python 3.12 support by @nicholasjng in #1676
• Change nanobind linkage to response file approach on macOS by @nicholasjng in #1638
• Reapply size optimizations for clang & MSVC, LTO for Mac+Linux by @nicholasjng in #1685
• [bindings] Add LTO builds on Windows+MSVC by @nicholasjng in #1687
• Add pre-commit config and GitHub Actions job by @nicholasjng in #1688
• Replace isort hook with ruff builtin import sorting by @nicholasjng in #1689
• Add setuptools_scm for dynamic zero-config Python versioning by @nicholasjng in #1690
• Fix unit tests compilation by non-gnu/msvc compilers with c++11 support. by @ivafanas in #1691
• Fixed compiler warnings by @tmiguelf in #1697
• Switch out black for ruff format by @nicholasjng in #1698
• Add Missing \n at the End of Error Log String by @itzmeanjan in #1700
• Fix CMakeLists.txt for perf_counters_test by @illbegood in #1701
• [CI] Fix sanitizer builds by pinning the LLVM revision by @LebedevRI in #1703
• Support windows MSYS2 environments by @LebedevRI in #1704
• Fix pre-commit GitHub Actions job by @nicholasjng in #1708
• [NFC] complexity_n is not of IterationCount type by @LebedevRI in #1709
• Fix editable install by unsetting build_ext.copy_extensions_to_source by @nicholasjng in #1710
• Upgrade core bazel dependencies by @nicholasjng in #1711
• Run pre-commit autoupdate, fix stale pyproject.toml comments by @nicholasjng in #1712
• Check out repo at depth 0 for Python tests, bump Python and PyPI actions by @nicholasjng in #1713
• Fix mis-matching argument in closing tag for cmake macro (#1714) by @iakovs in #1715
• define HOST_NAME_MAX for z/OS by @abhina-sree in #1717
• Fix division by zero for low frequency timers for CV statistics by @ivafanas in #1724
• Remove the use of "Sanity" and replace it with "Safety" by @hamptonm1 in #1728
• CycleClock: use RDTIME instead of RDCYCLE on RISC-V by @aurel32 in #1727
• Enable Large-file Support by @oToToT in #1726
• Fix per-thread timing error on z/OS by @abhina-sree in #1719
• Avoid leaking LFS flags to reverse dependencies by @afq984 in #1730
• Change Fixture to use non-const SetUp and TearDown in example by @FantasqueX in #1723
• fix: fail to import gbench in bazel and python3.12 by @dhmemi in #1721
• Issue1731 created console does not receive output by @bstordrup in #1732
• tools/compare: don't actually discard valid (but zero) pvalue by @LebedevRI in #1733
• Issue 1734: Streams not flushed if not running actual benchmarks by @bstordrup in #1735
• fix(cmakelists.txt): enforce CMake to find PFM or fail when BENCHMARK… by @ananta in #1705
• Docs: reducing_variance.md: proofreading, fix typos by @LebedevRI in #1736
• Fix C-style typecasting in QNX-specific code by @Arech in #1739
• Bump pre-commit dependencies by @nicholasjng in #1740
• Output library / schema versions in JSON context block by @LebedevRI in #1742
• set library version in bazel by @dmah42 in #1746
• Add BENCHMARK_TEMPLATE[12]_CAPTURE, fusion of BENCHMARK_CAPTURE and BENCHMARK_TEMPLATE by @LebedevRI in #1747
• Deflake CI by @LebedevRI in #1751
• Fix typo in GetBenchmarkVersion() by @Liedtke in #1755
• CycleClock: Add support for Alpha architecture by @thesamesam in #1753
• sysinfo.cc: Always abort on GetNumCPUs failure by @thesamesam in #1756
• Rewrite complexity_test to use (hardcoded) manual time by @LebedevRI in #1757
• Revert "fix some warnings" by @LebedevRI in #1762
• Fixed LTO issue on no discard variable by @tmiguelf in #1761
• mitigate clang build warnings -Wconversion by @dmah42 in #1763
• Add Python bindings build using bzlmod by @nicholasjng in #1764
• Fix implicit conversion changes signess warning in perf_counters.cc by @ivafanas in #1765
• clang-tidy broke the world by @LebedevRI in #1766
• allow BENCHMARK_VERSION to be undefined by @PhilipDeegan in #1769
• fix OpenBSD build by @vazub in #1772
• Remove COMPILER_IBMXL macro for z/OS by @fanbo-meng in #1777
• Refactor: Return frequency as double by @dhairyarungta in #1782
• Add benchmark_main.pc to link main() containing library by @SoapGentoo in #1779
• Switch git override to stable BCR tag for nanobind_bazel by @nicholasjng in #1778
• Modernize wheel building job config by @nicholasjng in #1783
• preparing for v1.8.4 by @dmah42 in #1788

New Contributors

• @Maetveis made their first contribution in #1669
• @andreas-abel made their first contribution in #1662
• @mosfet80 made their first contribution in #1671
• @zm1060 made their first contribution in #1681
• @ivafanas made their first contribution in #1691
• @tmiguelf made their first contribution in #1697
• @itzmeanjan made their first contribution in #1700
• @illbegood made their first contribution in #1701
• @iakovs made their first contribution in #1715
• @aurel32 made their first contribution in #1727
• @oToToT made their first contribution in #1726
• @afq984 made their first contribution in #1730
• @FantasqueX made their first contribution in #1723
• @dhmemi made their first contribution in #1721
• @bstordrup made their first contribution in #1732
• @ananta made their first contribution in #1705
• @Arech made their first contribution in #1739
• @Liedtke made their first contribution in #1755
• @thesamesam made their first contribution in #1753
• @vazub made their first contribution in #1772
• @dhairyarungta made their first contribution in #1782
• @SoapGentoo made their first contribution in #1779

Full Changelog: v1.8.3...v1.8.4

v1.8.3

What's Changed

• Fix broken PFM-enabled tests by @macandy13 in #1623
• Update tools.md for missing color meaning issue #1491 by @varshneydevansh in #1624
• Add pyproject.toml file for PEP518 compliance by @nicholasjng in #1625
• pfm: Use a more standard CMake approach for finding libpfm by @chipot in #1628
• Bump nanobind to stable v1.4.0 tag by @nicholasjng in #1626
• Bump scipy from 1.5.4 to 1.10.0 in /tools by @dependabot in #1630
• Downgrade bazel to windows-2019 by @dmah42 in #1629
• Add tests for Human Readable functionality by @dmah42 in #1632
• Delete unused requirements file, simplify nanobind build file by @nicholasjng in #1635
• Update bzlmod support to new rules_python extension API by @jsharpe in #1633
• Re-enable windows-latest tests for newer Bazel by @nicholasjng in #1641
• Fix -Werror,-Wold-style-cast build failure on Windows. by @saran-t in #1637
• Mark internal deps as dev_depenencies so that downstream modules don't require those by @macandy13 in #1640
• bug: Inconsistent suffixes console reporter 1009 by @varshneydevansh in #1631
• Fix IntelLLVM compiler error by @joannapng in #1644
• fix: added benchmark_counters_tabular for file by @varshneydevansh in #1645
• [perf-counters] Fix pause/resume by @mtrofin in #1643
• sysinfo.cc: Call getloadavg for Android API >= 29 by @jmr in #1649
• benchmark.cc: Fix benchmarks_with_threads condition by @jmr in #1651
• perf-counters: Make tests pass on Android by @jmr in #1653
• State: Initialize counters with kAvgIteration in constructor by @jmr in #1652
• perf_counters: Initialize once only when needed by @jmr in #1656
• test: Use gtest_main only when needed by @jmr in #1657
• StatisticsMedian: Fix bug by @jmr in #1658

New Contributors

• @varshneydevansh made their first contribution in #1624
• @chipot made their first contribution in #1628
• @dependabot made their first contribution in #1630
• @jsharpe made their first contribution in #1633
• @saran-t made their first contribution in #1637
• @joannapng made their first contribution in #1644
• @jmr made their first contribution in #1649

Full Changelog: v1.8.2...v1.8.3

v1.8.2

What's Changed

• Add more terminals with color support by @p00f in #1621
• Fix passing non-const lvalue refs to DoNotOptimize by @eseiler in #1622

New Contributors

• @p00f made their first contribution in #1621
• @eseiler made their first contribution in #1622

Full Changelog: v1.8.1...v1.8.2

v1.8.1

What's Changed

• Disable debug-only test in release builds to avoid expected failures. by @macandy13 in #1595
• Fix code triggering -Wsign-conversion by @oontvoo in #1596
• Update Python version to PY3, as indicated by the actual source file. by @macandy13 in #1598
• Fixed a typo in docs by @toughengineer in #1600
• Fix pass rvalue to DoNotOptimize by @bgaifullin in #1608
• Fix a typo in regex choice by @Chilledheart in #1610
• remove old-style (C-style) casts by @garymm in #1614
• Add support for bzlmod (excluding Python bindings) by @macandy13 in #1615
• Add a CI test for the new bzlmod integration by @macandy13 in #1617
• Suppress intentional potential memory leak as detected by clang static analysis by @LebedevRI in #1618

New Contributors

• @macandy13 made their first contribution in #1595
• @toughengineer made their first contribution in #1600
• @bgaifullin made their first contribution in #1608
• @Chilledheart made their first contribution in #1610
• @garymm made their first contribution in #1614

Full Changelog: v1.8.0...v1.8.1

v1.8.0

What's Changed

• Removed deprecated function by @oontvoo in #1506
• Return option benchmark_perf_counters to help output by @MaximSmolskiy in #1508
• Fixes incorrect wide string conversion on win32 by @JessyDL in #1516
• Try removing attempt to set the C++ standard by @dmah42 in #1464
• Add a benchmark_deps.bzl function to Google Benchmark by @nicholasjng in #1520
• Bug fix variable 'actual_iterations' set but not used by @yuryf-google in #1517
• Fix Clang-Tidy warnings related to modernize-use-override by @SunBlack in #1523
• Fix typos found by codespell by @SunBlack in #1519
• Include the benchmark's family-name in State by @oontvoo in #1511
• Fix Clang-Tidy warnings readability-else-after-return by @SunBlack in #1528
• [doc]Add quick instructions on how to enable sans checks by @oontvoo in #1529
• Modernize setup.py, extend Python bindings CI by @nicholasjng in #1535
• Switch bindings implementation to nanobind by @nicholasjng in #1526
• try disabling liquid for jekyll to fix curly braces by @dmah42 in #1536
• remove best effort support for ubuntu 18.04 by @dmah42 in #1537
• Deprecate constant reference API to DoNotOptimize. by @ckennelly in #1493
• Fixing issue with ARM64EC and MSVC by @jbr-smtg in #1514
• fix #1446 by removing the address operator by @dmah42 in #1538
• Support --benchmarks_filter in the compare.py 'benchmarks' command by @matta in #1486
• Allow specifying number of iterations via --benchmark_min_time. by @oontvoo in #1525
• Refactor links which include "master" and change it to "main" by @hamptonm1 in #1540
• replace complexity with simplicity for faster libc++ setup by @dmah42 in #1539
• update github actions to latest versions by @dmah42 in #1541
• Removing warnings appearing with C++20 / CLang 15 by @yuryf-google in #1542
• Add missing parentheses in ParseBenchMinTime() by @JonathonReinhart in #1545
• Werror all the time by @dmah42 in #1546
• cleanup: support CMake >= 3.10 by @coryan in #1544
• Fix CPU frequency estimation on riscv by @dtcxzyw in #1549
• add compiler to build-and-test and create min-cmake CI bot by @dmah42 in #1550
• Implement unlimited number of performance counters by @HFTrader in #1552
• Filter performance counter names, not invalidate all by @HFTrader in #1554
• get rid of DoNotOptimize warnings in tests by @dmah42 in #1562
• Refactoring of PerfCounters infrastructure by @HFTrader in #1559
• Bump nanobind to stable v0.2.0, change linker options by @nicholasjng in #1565
• Fix examples in user guide using deprecated DoNotOptimize-API by @mjacobse in #1568
• Fix build break with nvc++ when -Werror is ON by @HFTrader in #1569
• [FR] state.SkipWithMessage #963 by @gatorfax in #1564
• use std::string for skip messages by @dmah42 in #1571
• [FR] Provide public accessors to benchmark name and arguments #1551 by @gatorfax in #1563
• Address warnings on NVIDIA nvc++ by @HFTrader in #1573
• add '@' to correctly reference build file for libpfm by @dmah42 in #1575
• Convert uses of const char* to std::string by @dmah42 in #1567
• link to benchmark directly for tests that aren't link_main_test by @dmah42 in #1576
• Fix compile warnings about ignoring a [[nodiscard]] type. by @pkasting in #1577
• Correct libpfm dep for integrators. by @shiqing117 in #1579
• Guard NOMINMAX to prevent redefinition error (#1581) by @dushko in #1582
• reenable msan sanitizer workflow by @dmah42 in #1589

New Contributors

• @MaximSmolskiy made their first contribution in #1508
• @JessyDL made their first contribution in #1516
• @yuryf-google made their first contribution in #1517
• @SunBlack made their first contribution in #1523
• @jbr-smtg made their first contribution in #1514
• @hamptonm1 made their first contribution in #1540
• @JonathonReinhart made their first contribution in #1545
• @coryan made their first contribution in #1544
• @dtcxzyw made their first contribution in #1549
• @HFTrader made their first contribution in #1552
• @gatorfax made their first contribution in #1564
• @pkasting made their first contribution in #1577
• @shiqing117 made their first contribution in #1579
• @dushko made their first contribution in #1582

Full Changelog: v1.7.1...v1.8.0

v1.7.1

What's Changed

• Remove stray comment and added missing header by @oontvoo in #1444
• Initialize help hook before actually parsing the command line by @yurikhan in #1447
• remove unnecessary generated include directory by @dominichamon in #1451
• Fixed build issues on window by @oontvoo in #1449
• Explicitly cast int literals to int8_t in tests to silence implicit-conversion warnings by @oontvoo in #1455
• Ensure we don't need benchmark installed to pass c++ feature checks by @dominichamon in #1456
• Avoid deprecation warning in NVHPC by @cz4rs in #1459
• run ClearRegisteredBenchmarks at exit by @dominichamon in #1463
• FIx typo in benchmark.h by @bdaase in #1465
• add debug option for enabling more output for failed cxxfeaturechecks by @dominichamon in #1467
• Fix link error when use as static library on windows. by @PSyton in #1470
• use CMAKE_INSTALL_FULL in pkg-config file (fixes nix package) by @babbaj in #1473
• Clean up test documentation formatting by @drfloob in #1475
• Enable aarch64 Linux wheel builds, use cibuildwheel action directly by @nicholasjng in #1472
• Eliminate usage of deprecated API in sysinfo.cc by @oontvoo in #1474
• Stop using pandas.Timedelta (fixes #1482) by @matta in #1483
• Discuss sources of variance in the user guide by @matta in #1481
• Bump pybind11 version to enable Python 3.11 wheel builds by @nicholasjng in #1489
• bump cmake dep and docs by @dominichamon in #1468
• Support for QuRT OS (Hexagon RTOS) by @Maratyszcza in #1497
• Fix Solaris compilation (#1499) by @rorth in #1500
• Do not depend on unversioned python binary by @MatzeB in #1496
• Partially revert "Do not depend on unversioned python binary (#1496)" by @LebedevRI in #1501
• Add information for supported Python versions to setup.py by @nicholasjng in #1502
• [bazel] Build libpfm as a dependency to allow collection of perf counters by @rajachan in #1408

New Contributors

• @bdaase made their first contribution in #1465
• @PSyton made their first contribution in #1470
• @babbaj made their first contribution in #1473
• @drfloob made their first contribution in #1475
• @rorth made their first contribution in #1500
• @MatzeB made their first contribution in #1496
• @rajachan made their first contribution in #1408

Full Changelog: v1.7.0...v1.7.1

v1.7.0

Small release to replace broken v1.6.2 release

What's Changed

• Stop generating the export header and just check it in by @dominichamon in #1435
• use target_compile_definitions by @dominichamon in #1440
• simplified code by @maochongxin in #1439

New Contributors

• @maochongxin made their first contribution in #1439

Full Changelog: v1.6.2...v1.7.0