build: Bump minimum supported macOS to 13.0

Running Bitcoin Core on unsupported OSes may expose users to security
issues.

macOS Monterey 12 received its final security update (12.7.6) on July
2024. Apple classifies the hardware that can run macOS 12 at most as
"obsolete worldwide".

6 files changed, 5 insertions, 7 deletions

diff --git a/contrib/devtools/symbol-check.py b/contrib/devtools/symbol-check.py
index 1722c7d290..3f6010280a 100755
--- a/contrib/devtools/symbol-check.py
+++ b/contrib/devtools/symbol-check.py
@@ -235,7 +235,7 @@ def check_MACHO_libraries(binary) -> bool:
     return ok
 
 def check_MACHO_min_os(binary) -> bool:
-    if binary.build_version.minos == [11,0,0]:
+    if binary.build_version.minos == [13,0,0]:
         return True
     return False
 
diff --git a/contrib/devtools/test-symbol-check.py b/contrib/devtools/test-symbol-check.py
index 454dbc6bd2..c75a5e1546 100755
--- a/contrib/devtools/test-symbol-check.py
+++ b/contrib/devtools/test-symbol-check.py
@@ -116,7 +116,7 @@ class TestSymbolChecks(unittest.TestCase):
                 }
         ''')
 
-        self.assertEqual(call_symbol_check(cxx, source, executable, ['-Wl,-platform_version','-Wl,macos', '-Wl,11.0', '-Wl,11.4']),
+        self.assertEqual(call_symbol_check(cxx, source, executable, ['-Wl,-platform_version','-Wl,macos', '-Wl,13.0', '-Wl,11.4']),
                 (1, f'{executable}: failed SDK'))
 
     def test_PE(self):
diff --git a/depends/hosts/darwin.mk b/depends/hosts/darwin.mk
index a27d8b323b..4659d52912 100644
--- a/depends/hosts/darwin.mk
+++ b/depends/hosts/darwin.mk
@@ -1,4 +1,4 @@
-OSX_MIN_VERSION=11.0
+OSX_MIN_VERSION=13.0
 OSX_SDK_VERSION=14.0
 XCODE_VERSION=15.0
 XCODE_BUILD_ID=15A240d
diff --git a/doc/build-osx.md b/doc/build-osx.md
index c7cc84d42d..5456fd00fa 100644
--- a/doc/build-osx.md
+++ b/doc/build-osx.md
@@ -51,8 +51,6 @@ To install, run the following from your terminal:
 brew install cmake boost pkg-config libevent
 ```
 
-For macOS 11 (Big Sur) and 12 (Monterey) you need to install a more recent version of llvm.
-
 ``` bash
 brew install llvm
 ```
diff --git a/doc/release-notes-empty-template.md b/doc/release-notes-empty-template.md
index ac1c1382e0..1ff55b5ccc 100644
--- a/doc/release-notes-empty-template.md
+++ b/doc/release-notes-empty-template.md
@@ -43,7 +43,7 @@ Compatibility
 ==============
 
 Bitcoin Core is supported and extensively tested on operating systems
-using the Linux Kernel 3.17+, macOS 11.0+, and Windows 7 and newer. Bitcoin
+using the Linux Kernel 3.17+, macOS 13.0+, and Windows 7 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.
diff --git a/share/qt/Info.plist.in b/share/qt/Info.plist.in
index b4e6f6a150..5ff736152f 100644
--- a/share/qt/Info.plist.in
+++ b/share/qt/Info.plist.in
@@ -3,7 +3,7 @@
 <plist version="0.9">
 <dict>
   <key>LSMinimumSystemVersion</key>
-  <string>11</string>
+  <string>13</string>
 
   <key>LSArchitecturePriority</key>
   <array>