• Timestamps in output are now rfc3339-formatted #965
• overflow warnings with timers fixed #980
• Python dependencies are now covered by a requirements.txt #994
• JSON output cleaned up when no CPU scaling is present (#1008)
• CartesianProduct added for easier settings of multiple ranges (#1029)
• Python bindings improvements:
  • Custom main functions (#993)
  • A rename to google_benchmark (#199
  • More state methods bound (#1037) with a builder interface (#1040)
• Workflow additions in github include pylint (#1039) and bindings runs (#1041)

• Python bindings are now available in //bindings/python
• Upgraded bazel from 0.10.1 to 3.2.0 (long overdue)
• RISC-V and PPC cycleclock fixes
• Various build warnings and cmake issues resolved
• Documentation improvements

• Bump CMake minimum version to 3.5.1 (see dependencies.md) (#801)
• Add threads and repetitions to the JSON outputa (#748)
• Memory management and reporting hooks (#625)
• Documentation improvements
• Miscellaneous build fixes (Mostly Intel compiler and Android)

Bug-fix release on v1.4.

• Realign expectation that State::iterations() returns 0 before the main benchmark loop begins. (#598)
• CMake error message fixes (#595, #584)
• Enscripten check fix (#583)
• OpenBSD porting (#582)
• Windows bazel fixes (#581)
• Bazel pthread linking (#579)
• Negative regexes (#576)
• gmock fix (#564)

• Removal of deprecated headers
• Improved CPU cache info reporting (#486)
• Support State::KeepRunningBatch() (#521)
• Support int64_t for AddRange()
• New platform support: NetBSD, s390x, Solaris
• Bazel build support
• Support googletest unit tests
• Add assembler tests
• Various warnings fixed

Highlights

• Ranged for loop optimization! (#454, #460)
• Make installation optional (#463)
• Better stats including user-provided ones (#428)
• JSON reporter format fixes (#426, #431)
• Documentation improvements (#445, #433, #466)

Highlights

• User-defined counters
• Single header library
• Ability to clear benchmarks so the runtime registration is more flexible
• Sample-based standard deviation
• 32-bit build enabled
• Bug fixes

Highlights

• ArgNames support
• Fixes for OSX and Cygwin and MSVC builds
• PauseTiming and ResumeTiming are per thread (#286)
• Better Range and Arg specifications
• Complexity reporting

Significant changes since v0.1.0:

• cmake 2.8.11 required
• stricter compiler warnings
• LTO support
• fixtures
• documentation fixes
• CSV output
• better windows support
• minor fixes