Log Message:
spdlog: update to 1.8.5.

1.8.5

Fix compiling with C++17: remove constexpr on level_string_views. Thanks \ 
@stevenlunt (#1889).

1.8.4

Remove version requirement from find_package when searching external fmt. #1890. \ 
Thanks @prince-chrismc

1.8.3

New hourly file sink . Creates new file every hour. Can be limited to retain \ 
only the last N files. Thanks @BVonk (#1763).
New daily sink filename custom formatting. Users now can pass custom strftime \ 
pattern to the log filename. For example: \ 
daily_logger_format_mt("loggername", "log-%Y%m%d:%H:%M.txt", \ 
hours, minutes);. Thanks @fawdlstty (#1847).
Fix windows event sink log compilation with UNICODE preprocessor. Thanks @iko1 \ 
(#1760).
Add SPDLOG_DISABLE_DEFAULT_LOGGER as a CMake option. Thanks @shimaowo (#1765, #1766).
Improve color terminal detection. Thanks @dominicpoeschko (#1768).
Prevent windows color sink to leak windows headers into user code Thanks \ 
@Ryan-rsm-McKenzie (#1771).
Ensure SPDLOG_FMT_EXTERNAL is honored in the bench program. Thanks \ 
@Ryan-rsm-McKenzie (#1773).
Skip CMake module mode when finding fmt. Thanks @Ryan-rsm-McKenzie (#1774).
Better support for "/" separators on Windows, and improve wchar \ 
filename test coverage. Thanks @sylveon (#1787).
Open files with "ab" mode even if truncating to better support \ 
logrotate(8). Thanks @graydon (#1795).
Fix compiling error and typo in hourly file sink. Thanks @sillykelvin (#1805).
Add constexpr to SPDLOG_LEVEL_NAMES declaration. Thanks @gv-me (#1798).
Initializer list style consistency. Thanks @ChristianPanov (#1807).
Fix call to non-constexpr function (#1811).
Better numeric_limits<>::max/min fix when SPDLOG_WCHAR_TO_UTF8_SUPPORT is \ 
defined. Thanks @NukeULater (#1819).
Fix to prevent MSVC warning flags to propagate to CUDA. Thanks @prateek9623 \ 
(#1825, #1829).
Fix windows stdout_sink raising exception when used GUI Windows Apps that lack a \ 
console. Thanks @dgehri for reporting (#1828).
Simplified wincolor sink code and intensify the red and yellow colors.
Set default value to registry::err_handler_ to resolve Klocwork warning. . \ 
Thanks @jneruda (#1835).
Formatter bench: Fix compilation by avoiding function name decay mechanics. \ 
Thanks @MathiasMagnus (#1846).
Add build2 package support in readme. Thanks @Klaim (#1851).
Make sure __cplusplus is defined under msvc CMakeLists.txt
Fixed VS2019 W4 cast warning (#1876).
Fix warning whe the compilation flag -Wswitch-default is present. Thanks \ 
@imsherlock (#1882).