Implemented enhancements:

• Add support for customizing the prefix format #578
• "sprintf" function being used in googletest.h which is not secure #536
• stacktrace is not produced on aarch64 #531
• Documenting minimum C++ version #527
• Glog file separation by year #516
• Bazel support for windows #472
• GOOGLE_GLOG_DLL_DECL needs to be put into header file #469
• Glog should delete old log files automaticly #423
• CHECK_XX variants do not compile if nullptr is an argument #341
• autogen.sh makes git directory dirty #308
• LogSink::ToString has no microsecond precision. #307
• Conan package for glog #262
• How to change format of logger? for example time and verbose level name and etc #229
• Username lookup needs a tuneup #211
• Feature request for sudo make uninstall #163
• glog should use ThreadSanitizer (TSAN) dynamic annotations #80
• Add support for deleting old logs #36
• CHECK support for nullptr (fixes #341) #641 (sergiud)
• cmake: do not require a C compiler #627 (sergiud)
• use C++ headers #626 (sergiud)
• removed windows-specific headers #625 (sergiud)
• document C++ version #623 (sergiud)
• Add support for customizing the prefix format #554 (santigl)
• Add extra information in log file header (application build/version, actual duration time) #438 (d-uspenskiy)
• Use libunwind as an imported target #368 (UVV-gh)
• Annotate LOG_EVERY_N macros as a benign race for TSAN #263 (kennyyu)

Fixed bugs:

• Incorrect Unwind version parser #598
• Large integers get truncated #594
• Windows shared library generates linkage warnings #569
• Replace obsolete __CYGWIN64__ macro #566
• Disabling 'Symbolize functionality' is not working #563
• LOG_TO_STRING and std namespace #550
• Ownership with SetLogger #524
• gtest usage not implemented in CMake build system #510
• ac_cv___attribute___printf_4_5 not set in CMake build system #509
• --max_log_size not work when larger than 4096 #497
• vmodule flag is not declared #466
• TSan warning: a race in LOG_EVERY_N and friends #439
• stacktrace unittest hangs on MSVC #328
• EXC_BAD_ACCESS on iOS #275
• Signal handler tests fail on ARM #256
• glog 0.3.5 compilation failed on Centos 7 #243
• ./libtool: line 6000: cd: no/lib: No such file or directory #215
• Test stl_logging fails in macOS CMake build #201
• autoconf build does not version the library #196
• gcc 4.7.2, 4.8.3, 4.9.2 unit test failures on C++11 #14
• fix gflags windows linker warnings #640 (sergiud)
• fixed windows builds #639 (sergiud)
• fix LogCleaner::IsLogFromCurrentProject for filename_extension #637 (xiaobfly)
• fully qualify std::string #624 (sergiud)
• handle --max_log_size overflow #622 (sergiud)
• cmake: optionally use gtest #621 (sergiud)
• cmake: allow to disable symbolize #620 (sergiud)
• build: set ac_cv___attribute___printf_4_5 #618 (sergiud)
• cmake: fixed unwind patch component match check #613 (sergiud)

Closed issues:

• call InitGoogleLogging get a segment fault #607
• BUILD file will create a conflict with build/ folder #606
• glog don't create log file in visual c++ dll project #605
• error in CMAKE installation steps--$ git clone git@github.com:google/glog.git should change to $ git clone https://github.com/google/glog.git #603
• No system link created along with the log files #599
• CMake build instructions do not work for paths with ampersand #597
• publicly visible Bazel target no longer provides any headers #596
• LogCleaner::IsLogFromCurrentProject incorrect when SetLogFilenameExtension #589
• EnableLogCleaner not recognized #586
• IsGlogLog problem #584
• Build fails with clang-cl due to undefined symbols #575
• Write the correct Windows version in the log header #572
• Ability to write time in UTC in log files #571
• compile error: use of overloaded operator '<<' is ambiguous #562
• glog error log was incorrrectly written to unexpected memory #561
• How to disable logging. #556
• Cannot compile "configure: WARNING: 'missing' script is too old or missing" #544
• Support to modify verbose log level for mudules #538
• Dropping autoconf support #537
• Failed to print INFO and WARNING log #533
• glog rpm installation fails if openstack-train repo is enabled #522
• stripped binaries produce useless backtraces #514
• Flag --incompatible_no_implicit_file_export will break Google Logging in a future Bazel release #512
• Flag --incompatible_load_cc_rules_from_bzl will break Google Logging in Bazel 1.2.1 #507
• Flag --incompatible_no_implicit_file_export will break Google Logging in Bazel 1.2.1 #506
• Is there any way logging without a mutex #504
• Including glog/logging.h triggers -Wunused-parameter on g++ #493
• Bazel: building glog with custom version gflags #480
• max_log_size flag does not work on AIX or linux #476
• cmake/DetermineGflagsNamespace.cmake was ignored when repush #473
• Conflict with gflags #458
• log file name error after application restart #457
• App security test reports Insecure API for React Native iOS App - Binary Analysis (IPA) #453
• multi thread cant share glog setting #450
• How do I write logs to files only? #436
• Crash in symbolize_unittest on Ubuntu 18.04 x86_64 #435
• Does glog support compress log files? #434
• Bazel build doesn't set correct compile flags. #430
• how to change the name of final dynamic library #427
• suggest about gflags #426
• about filename_extension_ in CreateLogfile #395
• Add cc_library for ScopedMockLog #392
• When building a react native project glog is causing a failure. #382
• glog's endline is not thread safe when using with another logging system?! #379
• Logfile full within 1s results in error #378
• InitGoogleLogging bug ，Could not create logging file #375
• golang/glog sometime can not create the log_dir? #369
• static google::log_mutex destroyed on exit, while other still existing threads want to log #363
• Does GLOG support log logs by day? #362
• how to compile it for android ndk? #360
• Cross Compile Error #358
• add daemon(1,0) ,then log is missing #357
• logtostderr filtering #356
• Get trouble in compiling glog for android! #355
• stl_logging unit test don't pass #348
• Stacktrace is not printed by failure signal handler when built with Bazel #346
• When might 0.3.6 be released? #345
• Unittest generates warning with C++17 regarding auto_ptr #335
• Use Upstream GoogleTest #333
• Static declaration of 'pread' follows non-static declaration error while building in xcode #326
• __declspec(dllimport) public: __thiscall google::base::CheckOpMessageBuilder::CheckOpMessageBuilder(char const *) #316
• glog can't be compiled using Android NDK r16 #306
• libunwind GetStackTrace implementation doesn't allow concurrent invocations #298
• VLOG before InitGoogleLogging causes crash #290
• macro 'AM_CONFIG_HEADER' not found in library #271
• Print binary-identifying info at the top of each file #269
• The spec.prepare_command lead an error #255
• signalhandler_unittest tests fails on aarch64 #219
• Compiling error: undefined references to `google::base::CheckOpMessageBuilder::NewString[abi:cxx11]() #195
• [0.3.5] errors during make check #194
• Allow coredump to be generated upon LOG(FATAL) #192
• Thread ID on macOS #182
• signalhandler_unittest tests fails on ppc64le #177
• --without-gflags is not working #175
• (gflags_reporting.cc.o): relocation R_X86_64_32 against.rodata.str1.1' can not be used when making a shared object; recompile with -fPIC #174
• Flag to give users choice to enable or disable time_pid_string attaching to the log file name #173
• DCHECK_NOTNULL generates "expression result unused" errors with clang in strict compilation mode #172
• C4722: destructor never returns potential memory leak #171
• Logging to the same file from multiple processes #170
• stacktrace_libunwind-inl.h: reentrancy check should use a thread-local instead of a global variable #160
• Support vmodule filter support on non GNU compilers #154
• can glog write to a specified file name? #147
• Expose DumpStackTraceToString to application/user #144
• Adding LOG_IF_OR_EVERY_N() #143
• Support initializing logger and sinker by configuration #135
• Logging UnitTest failed on x64 VS2015. Reason: Pointer format not consistent #134
• source/logging_unittest.cc:64 error : 'GFLAGS_NAMESPACE' is not not a namespance-name #131
• Allow glog to be queried as to whether or not InitGoogleLogging has been called. #125
• Allow a log file to be simply named "foobar.log" with no appended string #124
• Can I use default FailureSignalHandler() and my custom failure funcion together? #121
• logging_fail fail for x64 in VS2013, libglog_static #119
• travis env build failure : /bin/bash: aclocal-1.14: command not found #117
• Allow more than just argv[0] in InitGoogleLogging #113
• Can glog be shutdown totally? #111
• A memory bug detected by valgrind? #109
• src/demangle.h:80:27: error: expected initializer before 'Demangle' bool GOOGLE_GLOG_DLL_DECL Demangle(const char *mangled, char *out, int out_size); #108
• glog fails to build on ARM64/AArch64 #107
• logging_unittest-logging_unittest.o ERROR 1 #104
• FATAL error with pthread_cancel in multi-thread program #102
• configure: Hardcoded am__api_version='1.14' breaks build on systems with autoconf 1.15 #97
• ppc64le support for glog #89
• please remove generated autotools from the git repo #86
• module based minloglevel #66
• glog print wchar_t? #64
• Android build is broken #59
• libglog.pc.in should include libunwind as private dep for static linking case #57
• demangle_unittest.sh fails with GCC 5 (configured --with-default-libstdcxx-abi=new, which is the default) #40
• Make the documentation browsable online #39
• Make error: failed to link with libgflags.a #38
• Mark LOG(FATAL) with [[noreturn]] #28
• Logfile with more restrictive permissions control #23
• Asynchronous/double-buffering support? #16
• clang34, 35, 36 fails to pass unit tests with C++03 #13

Merged pull requests:

• readme: update CMake source directory option #642 (husskade)
• Add Windows builds using GitHub Actions #638 (NeroBurner)
• Use generated config.h for Windows. #635 (drigz)
• cmake: build shared libs by default #632 (sergiud)
• fixed file extension #631 (xiaobfly)
• bazel: use expand_template instead of genrules #628 (drigz)
• cmake: export symbols selectively #619 (sergiud)
• bazel: declare headers in top-level rule #615 (drigz)
• Rename BUILD to BUILD.bazel. #614 (drigz)
• replaced __CYGWIN32__ and __CYGWIN64__ by __CYGWIN__ #611 (sergiud)
• consolidate readme #610 (sergiud)
• cmake: handle empty unwind version patch component #609 (sergiud)
• Make stl_logging_unittest more robust. #608 (mahiuchun)
• Fix the symlink creation bug if using bazel #600 (zoukyle)
• Change counter type to uint64 #595 (r-barnes)
• src/logging.cc: Fix a typo in comment #593 (aesophor)
• src/logging.cc: Make LogCleaner aware of filename extension (#589) #592 (aesophor)
• remove autoconf support #585 (sergiud)
• Make cmake build on path with spaces. #580 (Yicong-Huang)
• Added check for if info.dli_sname is NULL #579 (arj-fb)
• Add override to LogStreamBuf::overflow() #576 (santigl)
• Add FLAGS_log_utc_time; when 'true' the time will be written in log in UTC, resolves #571 #573 (msamoila)
• Connect glog to Andorid logging API #570 (jiuqiant)
• Output to logcat on Android #553 (huangqinjin)
• Make message text null-terminated #552 (huangqinjin)
• Replace sprintf() with snprintf() (#536) #551 (aesophor)
• Fix build for Emscripten #546 (schoppmp)
• OpenBSD/powerpc: clang does not define _CALL_*, use proper ifdef instead #545 (julianaito)
• Use NULL to indicate uninitialized VLOG_IS_ON site. #542 (xulongwu4)
• Fix unused parameter warning on gcc. #540 (pwnall)
• Prepend the year to each glog line (#516) #530 (aesophor)
• fix bazel build for freebsd #526 (dfr)
• Allow CMake user to disable Symbolize functionality #523 (edbaunton)
• Add target existence checks to Unwind find module #518 (MichaelDarr)
• Add vcpkg installation instructions #517 (LilyWangL)
• Explain log levels. #515 (fmayer)
• Use file offsets in traces if object has no symbols #513 (mspang)
• Don't call close(2) more than once #508 (xiaosuo)
• Fix missing deletion of custom Logger #503 (alexsmac)
• src/logging.cc: encapsulate log cleaner, match logfile with <base_filename_><date>-<time>.<pid> #502 (aesophor)
• Address review comments for Bazel/Win32 build #499 (drigz)
• Fix race conditions in LOG_EVERY_N #492 (aesophor)
• doc: add information about log cleaner #491 (aesophor)
• Added fixed log name support, take 2 #489 (ezegomez)
• Add windows support for bazel build #488 (skeptic-monkey)
• src/logging.cc: fix wrong assignment #487 (Telunsu)
• src/symbolize.cc: do not check for HAVE_DLFCN_H for macOS #485 (ffontaine)
• removed executable flag from .cmake file #484 (sergiud)
• Support pkg-config #483 (loop0day)
• Revert "Added fixed log name support" #482 (sergiud)
• logging: Fix compilation with uClibc++ #479 (neheb)
• src/utilities: fix build without pthread #477 (ffontaine)
• src/symbolize.cc: fix build without dlfcn.h #475 (ffontaine)
• declare FLAGS_vmodule #467 (sukill)
• I supported clang-cl with BUILD_SHARED_LIBS #465 (durswd)
• googletest: Switch to nanosleep #460 (neheb)
• fix typo: TOOD -> TODO #448 (ukai)
• Don't test on Ubuntu 14.04 #446 (philwo)
• Fix symbolize_unittest for musl builds #443 (ammubhave)
• Extend the LogSink interface to be able to pass microseconds #441 (asekretenko)
• Add support for automatic removal of old logs #432 (aesophor)
• Fix logmailer problem for dynamic lib use of glog. #400 (guoyuhong)
• Fix warnings #370 (hemantbits)
• Allow getpwuid_r to return missing entry. #350 (TheModMaker)
• Fix stacktrace on Bazel build. #347 (nya3jp)
• Fix build for Android API < 21 #312 (ruslo)
• Use thread local for libunwind GetStackTrace() reentrancy protection #161 (mpercy)
• Respect configured docdir #88 (kekstee)
• Added fixed log name support #19 (ezegomez)