OpenMPT 1.30 and libopenmpt 0.6 removed platform support

[manx]

OpenMPT 1.30 will not remove any currently supported platform.

• Visual Studio 2017 is now unsupported for all configurations except RETRO builds targeting Windows XP

libopenmpt 0.6 has dropped support for the following compilers:

• GCC 7
• Clang 5, Clang 6
• Emscripten before 1.39.7

The minimum required compiler versions will be:

• Visual Studio 2017 / Visual Studio 2019
• GCC 8
• Clang 7
• Emscripten 1.39.7
• any C++17/C++20 compiler (std::filesystem is not required)

OpenMPT support matrices:

Windows	latest working OpenMPT
Windows 95	1.16
Windows 98	1.16
Windows 98 SE	1.18 (1.26.14.00-old with KernelEx)
Windows ME	1.18 (1.26.14.00-old with KernelEx)
Windows NT4	1.16
Windows 2000	1.26.14.00-old
Windows XP	1.28.10.00-old / 1.30-retro (development)
Windows Vista	1.28.10.00-old / 1.30-retro (development)
Windows 7	1.28.10.00-old / 1.30-retro (development)
Windows 7 SP1	1.30-legacy (development)
Windows 8	1.30-legacy (development)
Windows 8.1	1.30-legacy (development)
Windows 10	1.30 (development)

CPU generation	latest working OpenMPT
486	1.16
586, no CPUID, no CMPXCHG8B	1.26.14.00-old
586	1.28.10.00-old / 1.30-retro (development)
686, no SSE2	1.28.10.00-old / 1.30-retro (development)
686, SSE2	1.30 (development)

Version	1.19	1.20-1.22	1.23-1.24	1.25	1.26	1.27	1.28	1.29	1.30
Timeframe	2011	2012-2013	2014-2015	2015	2016-2017	2017-2018	2019-2020	2020-2021	2021-...
Primary Compiler Secondary Compiler RETRO Compiler	VS2008	VS2008	VS2008 VS2010	VS2010 VS2008	VS2010 VS2008	VS2015	VS2017	VS2019	VS2019 VS2017
Other Compilers	VS2010	VS2010		VS2012 VS2013 VS2015	VS2012 VS2013 VS2015	VS2017	VS2015
Compilers with limited support								VS2017
Version	1.19	1.20-1.22	1.23-1.24	1.25	1.26	1.27	1.28	1.29	1.30
Windows NT4 (1996-2004)	no	no	no	no	no	no	no	no	no
Windows 2000 (2000-2010)	yes	yes	yes	yes	yes	no	no	no	no
Windows XP (2001-2014)	yes	yes	yes	yes	yes	yes	yes	no	retro
Windows Vista (2006-2017)	yes	yes	yes	yes	yes	yes	yes	no	retro
Windows 7 (2009-2013)	yes	yes	yes	yes	yes	yes	yes	yes	retro
Windows 7 SP1 (2010-2020)	yes	yes	yes	yes	yes	yes	yes	yes	yes
Windows 8 (2012-2016)	maybe	yes	yes	yes	yes	yes	yes	yes	yes
Windows 8.1 (2013-2023)	maybe	yes	yes	yes	yes	yes	yes	yes	yes
Windows 10 (2015-____)	maybe	maybe	maybe	maybe	yes	yes	yes	yes	yes
Version	1.19	1.20-1.22	1.23-1.24	1.25	1.26	1.27	1.28	1.29	1.30