diff --git a/stdlib/public/CMakeLists.txt b/stdlib/public/CMakeLists.txt
index eced0d1a99adf..b3e298f09f0b6 100644
--- a/stdlib/public/CMakeLists.txt
+++ b/stdlib/public/CMakeLists.txt
@@ -227,9 +227,9 @@ if(SWIFT_SHOULD_BUILD_EMBEDDED_STDLIB)
       )
   elseif (SWIFT_HOST_VARIANT STREQUAL "macosx")
     set(EMBEDDED_STDLIB_TARGET_TRIPLES ${EMBEDDED_STDLIB_TARGET_TRIPLES}
-      "x86_64   x86_64-apple-macos        x86_64-apple-macos10.13"
-      "arm64    arm64-apple-macos         arm64-apple-macos10.13"
-      "arm64e   arm64e-apple-macos        arm64e-apple-macos10.13"
+      "x86_64   x86_64-apple-macos        x86_64-apple-macos14"
+      "arm64    arm64-apple-macos         arm64-apple-macos14"
+      "arm64e   arm64e-apple-macos        arm64e-apple-macos14"
       )
   endif()
 endif()
diff --git a/test/DebugInfo/embedded.swift b/test/DebugInfo/embedded.swift
index 25e839cee58fc..8ae5cd769d42f 100644
--- a/test/DebugInfo/embedded.swift
+++ b/test/DebugInfo/embedded.swift
@@ -1,7 +1,7 @@
 // Check that the "-enable-embedded-swift" is stored as a flag in the 
 // Compile Unit.
 
-// RUN: %target-swift-frontend -emit-ir -enable-experimental-feature Embedded -g %s -o - | %FileCheck %s
+// RUN: %target-swift-frontend -target %target-cpu-apple-macos14 -emit-ir -enable-experimental-feature Embedded -g %s -o - | %FileCheck %s
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
diff --git a/test/IDE/complete_embedded.swift b/test/IDE/complete_embedded_linux.swift
similarity index 94%
rename from test/IDE/complete_embedded.swift
rename to test/IDE/complete_embedded_linux.swift
index d0f7d2414e3f8..202349db3d2cb 100644
--- a/test/IDE/complete_embedded.swift
+++ b/test/IDE/complete_embedded_linux.swift
@@ -1,6 +1,6 @@
 // REQUIRES: asserts
 // REQUIRES: swift_in_compiler
-// REQUIRES: OS=macosx || OS=linux-gnu
+// REQUIRES: OS=linux-gnu
 // RUN: %batch-code-completion -enable-experimental-feature Embedded
 
 func test() {
diff --git a/test/IDE/complete_embedded_macos.swift b/test/IDE/complete_embedded_macos.swift
new file mode 100644
index 0000000000000..bed008aa34038
--- /dev/null
+++ b/test/IDE/complete_embedded_macos.swift
@@ -0,0 +1,15 @@
+// REQUIRES: asserts
+// REQUIRES: swift_in_compiler
+// REQUIRES: OS=macosx
+// RUN: %batch-code-completion -target %target-cpu-apple-macos14 -enable-experimental-feature Embedded
+
+func test() {
+  #^GLOBAL^#
+// GLOBAL: Literal[Integer]/None:              0[#Int#];
+// GLOBAL: Literal[Boolean]/None:              true[#Bool#];
+// GLOBAL: Literal[Boolean]/None:              false[#Bool#];
+// GLOBAL: Literal[Nil]/None:                  nil;
+// GLOBAL: Literal[String]/None:               "{#(abc)#}"[#String#];
+// GLOBAL: Literal[Array]/None:                [{#(values)#}][#Array#];
+// GLOBAL: Literal[Dictionary]/None:           [{#(key)#}: {#(value)#}][#Dictionary#];
+}
diff --git a/test/SILOptimizer/devirt_deinits.swift b/test/SILOptimizer/devirt_deinits.swift
index 1f560038e442b..46d86c2b01f44 100644
--- a/test/SILOptimizer/devirt_deinits.swift
+++ b/test/SILOptimizer/devirt_deinits.swift
@@ -1,14 +1,14 @@
-// RUN: %target-swift-frontend  -primary-file %s -parse-as-library -sil-verify-all -Xllvm -enable-deinit-devirtualizer -module-name=test -emit-sil | %FileCheck %s
+// RUN: %target-swift-frontend -target %target-cpu-apple-macos14 -primary-file %s -parse-as-library -sil-verify-all -Xllvm -enable-deinit-devirtualizer -module-name=test -emit-sil | %FileCheck %s
 
 // Also do an end-to-end test and check if the compiled executable works as expected.
-// RUN: %target-run-simple-swift(-Xllvm -enable-deinit-devirtualizer -parse-as-library) | %FileCheck -check-prefix CHECK-OUTPUT %s
+// RUN: %target-run-simple-swift(-target %target-cpu-apple-macos14 -Xllvm -enable-deinit-devirtualizer -parse-as-library) | %FileCheck -check-prefix CHECK-OUTPUT %s
 
 // Check if it works in embedded mode.
-// RUN: %target-run-simple-swift(-enable-experimental-feature Embedded -parse-as-library -runtime-compatibility-version none -wmo -Xfrontend -disable-objc-interop) | %FileCheck -check-prefix CHECK-OUTPUT %s
+// RUN: %target-run-simple-swift(-target %target-cpu-apple-macos14 -enable-experimental-feature Embedded -parse-as-library -runtime-compatibility-version none -wmo -Xfrontend -disable-objc-interop) | %FileCheck -check-prefix CHECK-OUTPUT %s
 
 // Run without the deinit-devirtualizer to verify that our CHECK-OUTPUT lines are correct.
 // TODO: currently disabled because of rdar://118449507
-// RUNx: %target-run-simple-swift(-Xllvm -sil-disable-pass=deinit-devirtualizer -parse-as-library) | %FileCheck -check-prefix CHECK-OUTPUT %s
+// RUNx: %target-run-simple-swift(-target %target-cpu-apple-macos14 -Xllvm -sil-disable-pass=deinit-devirtualizer -parse-as-library) | %FileCheck -check-prefix CHECK-OUTPUT %s
 
 
 // REQUIRES: swift_in_compiler
diff --git a/test/embedded/concurrency-actors.swift b/test/embedded/concurrency-actors.swift
index 15486a7d14371..53d3b4ea8a3a2 100644
--- a/test/embedded/concurrency-actors.swift
+++ b/test/embedded/concurrency-actors.swift
@@ -1,5 +1,5 @@
 // RUN: %empty-directory(%t)
-// RUN: %target-swift-frontend -target %target-cpu-apple-macos14 -enable-experimental-feature Embedded -parse-as-library %s -c -o %t/a.o
+// RUN: %target-swift-frontend -enable-experimental-feature Embedded -parse-as-library %s -c -o %t/a.o
 // RUN: %target-clang -x c -c %S/Inputs/print.c -o %t/print.o
 // RUN: %target-clang %t/a.o %t/print.o -o %t/a.out %swift_obj_root/lib/swift/embedded/%target-cpu-apple-macos/libswift_Concurrency.a -dead_strip
 // RUN: %target-run %t/a.out | %FileCheck %s
diff --git a/test/embedded/concurrency-async-let.swift b/test/embedded/concurrency-async-let.swift
index 4b8e0ea20f642..10869bf25c22a 100644
--- a/test/embedded/concurrency-async-let.swift
+++ b/test/embedded/concurrency-async-let.swift
@@ -1,5 +1,5 @@
 // RUN: %empty-directory(%t)
-// RUN: %target-swift-frontend -target %target-cpu-apple-macos14 -enable-experimental-feature Embedded -parse-as-library %s -c -o %t/a.o
+// RUN: %target-swift-frontend -enable-experimental-feature Embedded -parse-as-library %s -c -o %t/a.o
 // RUN: %target-clang -x c -c %S/Inputs/print.c -o %t/print.o
 // RUN: %target-clang %t/a.o %t/print.o -o %t/a.out %swift_obj_root/lib/swift/embedded/%target-cpu-apple-macos/libswift_Concurrency.a -dead_strip
 // RUN: %target-run %t/a.out | %FileCheck %s
diff --git a/test/embedded/concurrency-builtins.swift b/test/embedded/concurrency-builtins.swift
index 0405b24db2b93..4872136e228f6 100644
--- a/test/embedded/concurrency-builtins.swift
+++ b/test/embedded/concurrency-builtins.swift
@@ -1,4 +1,4 @@
-// RUN: %target-swift-frontend -target %target-cpu-apple-macos14 -emit-irgen %s -enable-experimental-feature Embedded -enable-builtin-module | %FileCheck %s
+// RUN: %target-swift-frontend -emit-irgen %s -enable-experimental-feature Embedded -enable-builtin-module | %FileCheck %s
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: optimized_stdlib
diff --git a/test/embedded/concurrency-simple.swift b/test/embedded/concurrency-simple.swift
index 004cf4aa8f76f..7561ae13a0d09 100644
--- a/test/embedded/concurrency-simple.swift
+++ b/test/embedded/concurrency-simple.swift
@@ -1,5 +1,5 @@
 // RUN: %empty-directory(%t)
-// RUN: %target-swift-frontend -target %target-cpu-apple-macos14 -enable-experimental-feature Embedded -parse-as-library %s -c -o %t/a.o
+// RUN: %target-swift-frontend -enable-experimental-feature Embedded -parse-as-library %s -c -o %t/a.o
 // RUN: %target-clang -x c -c %S/Inputs/print.c -o %t/print.o
 // RUN: %target-clang %t/a.o %t/print.o -o %t/a.out %swift_obj_root/lib/swift/embedded/%target-cpu-apple-macos/libswift_Concurrency.a -dead_strip
 // RUN: %target-run %t/a.out | %FileCheck %s
diff --git a/test/embedded/lit.local.cfg b/test/embedded/lit.local.cfg
new file mode 100644
index 0000000000000..7a6a735417968
--- /dev/null
+++ b/test/embedded/lit.local.cfg
@@ -0,0 +1,12 @@
+# Make a local copy of the substitutions.
+config.substitutions = list(config.substitutions)
+
+if config.target_sdk_name == 'macosx':
+  def do_fixup(key, value):
+    if isinstance(value, str):
+      value = value.replace("-apple-macosx10.13", "-apple-macos14")
+    elif isinstance(value, SubstituteCaptures):
+      value.substitution = value.substitution.replace("-apple-macosx10.13", "-apple-macos14")
+    return (key, value)
+
+  config.substitutions = [do_fixup(a, b) for (a, b) in config.substitutions]
diff --git a/test/embedded/opaque-return-types.swift b/test/embedded/opaque-return-types.swift
index 22af015702880..1775e3b369675 100644
--- a/test/embedded/opaque-return-types.swift
+++ b/test/embedded/opaque-return-types.swift
@@ -1,4 +1,4 @@
-// RUN: %target-swift-emit-ir %s -target %target-cpu-apple-macos14 -enable-experimental-feature Embedded | %FileCheck %s
+// RUN: %target-swift-emit-ir %s -enable-experimental-feature Embedded | %FileCheck %s
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: VENDOR=apple