release: target Windows 10 or later

While we will only outwardly support Windows 10+, due to an issue in
mingw-w64, we can't set the *-subsystem-version values higher than to
target Windows 8, so do that as a best effort.

CMakeLists.txt

@@ -253,8 +253,8 @@ if(WIN32)
   ]=]
 
   target_compile_definitions(core_interface INTERFACE
-    _WIN32_WINNT=0x0601
-    _WIN32_IE=0x0501
+    _WIN32_WINNT=0x0A00
+    _WIN32_IE=0x0A00
     WIN32_LEAN_AND_MEAN
     NOMINMAX
   )
@@ -292,9 +292,11 @@ if(WIN32)
     # See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54412.
     try_append_cxx_flags("-Wa,-muse-unaligned-vector-move" TARGET core_interface SKIP_LINK)
     try_append_linker_flag("-static" TARGET core_interface)
-    # We require Windows 7 (NT 6.1) or later.
+    # We support Windows 10+, however it's not possible to set these values accordingly,
+    # due to a bug in mingw-w64. See https://sourceforge.net/p/mingw-w64/bugs/968/.
+    # As a best effort, target Windows 8.
     try_append_linker_flag("-Wl,--major-subsystem-version,6" TARGET core_interface)
-    try_append_linker_flag("-Wl,--minor-subsystem-version,1" TARGET core_interface)
+    try_append_linker_flag("-Wl,--minor-subsystem-version,2" TARGET core_interface)
   endif()
 endif()
 

contrib/devtools/symbol-check.py

@@ -260,7 +260,7 @@ def check_PE_libraries(binary) -> bool:
 def check_PE_subsystem_version(binary) -> bool:
     major: int = binary.optional_header.major_subsystem_version
     minor: int = binary.optional_header.minor_subsystem_version
-    if major == 6 and minor == 1:
+    if major == 6 and minor == 2:
         return True
     return False
 

contrib/devtools/test-symbol-check.py

@@ -135,7 +135,7 @@ def test_PE(self):
                 }
         ''')
 
-        self.assertEqual(call_symbol_check(cxx, source, executable, ['-lpdh', '-Wl,--major-subsystem-version', '-Wl,6', '-Wl,--minor-subsystem-version', '-Wl,1']),
+        self.assertEqual(call_symbol_check(cxx, source, executable, ['-lpdh', '-Wl,--major-subsystem-version', '-Wl,6', '-Wl,--minor-subsystem-version', '-Wl,2']),
             (1, 'pdh.dll is not in ALLOWED_LIBRARIES!\n' +
                  executable + ': failed DYNAMIC_LIBRARIES'))
 
@@ -166,7 +166,7 @@ def test_PE(self):
                 }
         ''')
 
-        self.assertEqual(call_symbol_check(cxx, source, executable, ['-lole32', '-Wl,--major-subsystem-version', '-Wl,6', '-Wl,--minor-subsystem-version', '-Wl,1']),
+        self.assertEqual(call_symbol_check(cxx, source, executable, ['-lole32', '-Wl,--major-subsystem-version', '-Wl,6', '-Wl,--minor-subsystem-version', '-Wl,2']),
                 (0, ''))
 
 

doc/release-notes-empty-template.md

@@ -42,8 +42,8 @@ codesign -s - bitcoin-cli bitcoin-qt bitcoin-tx bitcoin-util bitcoin-wallet bitc
 Compatibility
 ==============
 
-Bitcoin Core is supported and extensively tested on operating systems
-using the Linux Kernel 3.17+, macOS 13.0+, and Windows 7 and newer. Bitcoin
+Bitcoin Core is supported and tested on operating systems using the
+Linux Kernel 3.17+, macOS 13.0+, and Windows 10 and newer. Bitcoin
 Core should also work on most other Unix-like systems but is not as
 frequently tested on them. It is not recommended to use Bitcoin Core on
 unsupported systems.