What's Changed

• bazel: Use glog 0.5.0 in README by @drigz in https://github.com/google/glog/pull/647
• Expose IsGoogleLoggingInitialized() in public API. by @xkszltl in https://github.com/google/glog/pull/651
• Fix cmake configuration for cygwin environment by @romange in https://github.com/google/glog/pull/656
• Allow updating vmodule levels after vmodule level has been cached by @romange in https://github.com/google/glog/pull/650
• Export COPYING by @fmeum in https://github.com/google/glog/pull/666
• cmake: fixed msvc snprintf detection (fixes #668) by @sergiud in https://github.com/google/glog/pull/670
• cmake: allow to override -fPIC by @sergiud in https://github.com/google/glog/pull/672
• cmake: export <atomic> availability (fixes #667) by @sergiud in https://github.com/google/glog/pull/671
• Remove ubuntu1604 from presubmit.yml by @philwo in https://github.com/google/glog/pull/677
• bazel: add GLOG_CUSTOM_PREFIX_SUPPORT by @luliyucoordinate in https://github.com/google/glog/pull/676
• log messages periodically (time-based) by @darbitman in https://github.com/google/glog/pull/669
• ci: support more targets by @sergiud in https://github.com/google/glog/pull/686
• cmake: prefer linking against gflags::gflags (fixes #683) by @sergiud in https://github.com/google/glog/pull/684
• Fix syscall deprecation warning on macOS >= 10.12 by @z-aki in https://github.com/google/glog/pull/685
• fixed exception specification mismatch by @sergiud in https://github.com/google/glog/pull/687
• readme: fix wrong header id by @StephLin in https://github.com/google/glog/pull/674
• eliminate warnings by @sergiud in https://github.com/google/glog/pull/688
• fixed additional warnings by @sergiud in https://github.com/google/glog/pull/694
• Add an static cast to compare unsigned with unsigned by @Fettpet in https://github.com/google/glog/pull/696
• Fix: not implement virtual class when WITH_CUSTOM_PREFIX on by @Starsss in https://github.com/google/glog/pull/700
• Change size type in AnnotateBenignRaceSized to size_t from long by @dfreese in https://github.com/google/glog/pull/706
• Fix link error for Emscripten by @kinsei0916 in https://github.com/google/glog/pull/710
• raw_logging.h depends on type definition in logging.h. by @xkszltl in https://github.com/google/glog/pull/713
• export OS_* defines (fixes #715) by @sergiud in https://github.com/google/glog/pull/716
• Fix syscall warning in Bazel Build by @ArthurBandaryk in https://github.com/google/glog/pull/718
• Add -Werror to Bazel presubmits by @drigz in https://github.com/google/glog/pull/719
• added gmock support by @sergiud in https://github.com/google/glog/pull/720
• Support stack unwind on Android by @huangqinjin in https://github.com/google/glog/pull/708
• add linux github workflow by @sergiud in https://github.com/google/glog/pull/722
• ci: replace generated headers by templates by @sergiud in https://github.com/google/glog/pull/723
• add mock log test by @sergiud in https://github.com/google/glog/pull/724
• added log cleaner tests and fixed paths by @sergiud in https://github.com/google/glog/pull/732
• Make LogCleaner support relative paths by @aesophor in https://github.com/google/glog/pull/654
• cmake: Fix incorrect relative-path concatenation by @nh2 in https://github.com/google/glog/pull/733
• Restore the stream format after writing the log prefix by @meyerj in https://github.com/google/glog/pull/731
• fix glog-modules.cmake install by @sergiud in https://github.com/google/glog/pull/739
• protect VLOG by use_logging by @sergiud in https://github.com/google/glog/pull/742
• Fix log filename format by @cmsflash in https://github.com/google/glog/pull/747
• Add Zhuoran Shen to AUTHORS and CONTRIBUTORS by @cmsflash in https://github.com/google/glog/pull/748
• ci: reworked windows builds by @sergiud in https://github.com/google/glog/pull/737
• cmake: set CMP0074 policy by @sergiud in https://github.com/google/glog/pull/751
• ci: use codecov token by @sergiud in https://github.com/google/glog/pull/752
• Added gmtoff() method in 'LogMessageTime' to get GMT offset by @vijaysattigeri in https://github.com/google/glog/pull/727
• LogCleaner: Fix relative paths and add a new test by @aesophor in https://github.com/google/glog/pull/754
• eliminate msvc warnings by @sergiud in https://github.com/google/glog/pull/757
• cmake: require at least version 3.16 by @sergiud in https://github.com/google/glog/pull/758
• ci: enable warnings as errors by @sergiud in https://github.com/google/glog/pull/759
• LogCleaner: make overdue_days_ unsigned int by @aesophor in https://github.com/google/glog/pull/760
• ci: remove deprecated msvc runner by @sergiud in https://github.com/google/glog/pull/762
• provide backward compatible send overload by @sergiud in https://github.com/google/glog/pull/763
• run clang-tidy by @sergiud in https://github.com/google/glog/pull/765
• eliminate clang warnings by @sergiud in https://github.com/google/glog/pull/766
• ensure _Unwind_Backtrace to actually be available by @sergiud in https://github.com/google/glog/pull/767
• cmake: do not search for platform specific unwind by @sergiud in https://github.com/google/glog/pull/769
• revert to signed int atomics by @sergiud in https://github.com/google/glog/pull/770
• Add the "FLAG_log_year_in_prefix" by @msamoila in https://github.com/google/glog/pull/771
• use uint32 for --max-log-size by @sergiud in https://github.com/google/glog/pull/773
• stdcxx: eliminate excessive use of std::string::c_str() by @anpol in https://github.com/google/glog/pull/775
• cmake: require at least gflags 2.2.2 by @sergiud in https://github.com/google/glog/pull/781
• Changed my Email ID by @vijaysattigeri in https://github.com/google/glog/pull/782
• On Solaris, GetHostName() returns empty string by @fkolarek in https://github.com/google/glog/pull/783
• LogCleaner: avoid scanning logs too frequently by @fdgkhdkgh in https://github.com/google/glog/pull/776
• libglog.pc: Set Libs.private for static linking by @Arfrever in https://github.com/google/glog/pull/787
• cmake: enable custom prefix by default by @sergiud in https://github.com/google/glog/pull/788
• simplify flags export by @sergiud in https://github.com/google/glog/pull/791
• rename GOOGLE_GLOG_DLL_DECL to GLOG_EXPORT by @sergiud in https://github.com/google/glog/pull/764
• cmake_package_config_generate: Fix CMake warnings with CMake 3.23 by @Arfrever in https://github.com/google/glog/pull/792
• Tests: Respect TEST_TMPDIR, TMPDIR, TMP environmental variables by @Arfrever in https://github.com/google/glog/pull/794
• Add the logtostdout and colorlogtostdout flag to allow logging to stdout by @git-hulk in https://github.com/google/glog/pull/790
• Add clang-cl.exe to Bazel CI by @drigz in https://github.com/google/glog/pull/802
• Fix "'GLOG_EXPORT' macro redefined" on clang-cl by @drigz in https://github.com/google/glog/pull/803
• Fix namespace resolution issue in LOG_EVERY_T by @skeptic-monkey in https://github.com/google/glog/pull/801

New Contributors

• @xkszltl made their first contribution in https://github.com/google/glog/pull/651
• @fmeum made their first contribution in https://github.com/google/glog/pull/666
• @luliyucoordinate made their first contribution in https://github.com/google/glog/pull/676
• @darbitman made their first contribution in https://github.com/google/glog/pull/669
• @z-aki made their first contribution in https://github.com/google/glog/pull/685
• @StephLin made their first contribution in https://github.com/google/glog/pull/674
• @Fettpet made their first contribution in https://github.com/google/glog/pull/696
• @Starsss made their first contribution in https://github.com/google/glog/pull/700
• @dfreese made their first contribution in https://github.com/google/glog/pull/706
• @kinsei0916 made their first contribution in https://github.com/google/glog/pull/710
• @ArthurBandaryk made their first contribution in https://github.com/google/glog/pull/718
• @nh2 made their first contribution in https://github.com/google/glog/pull/733
• @meyerj made their first contribution in https://github.com/google/glog/pull/731
• @cmsflash made their first contribution in https://github.com/google/glog/pull/747
• @vijaysattigeri made their first contribution in https://github.com/google/glog/pull/727
• @anpol made their first contribution in https://github.com/google/glog/pull/775
• @fkolarek made their first contribution in https://github.com/google/glog/pull/783
• @fdgkhdkgh made their first contribution in https://github.com/google/glog/pull/776
• @Arfrever made their first contribution in https://github.com/google/glog/pull/787
• @git-hulk made their first contribution in https://github.com/google/glog/pull/790

Full Changelog: https://github.com/google/glog/compare/v0.5.0...v0.6.0-rc2