diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index ed7c0c7b..fc44885d 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -13,7 +13,7 @@ jobs:
     continue-on-error: true
     strategy:
       matrix:
-        os: [ windows-2022, ubuntu-22.04, macos-11 ]
+        os: [ windows-2022, ubuntu-22.04, macos-13 ]
 
     steps:
     - uses: actions/checkout@v3
@@ -25,9 +25,11 @@ jobs:
       with:
         vs-version: '[17,18)'
         msbuild-architecture: x64
-    - name: Install libssl (Mac Only)
-      if: ${{ matrix.os == 'macos-11' }}
-      run: brew install openssl@3
+    - name: Install libssl and switch to XCode 15.2 (Mac Only)
+      if: ${{ matrix.os == 'macos-13' }}
+      run: |
+        brew install openssl@3
+        sudo xcode-select -s /Applications/Xcode_15.2.app/Contents/Developer
     - name: cmake
       uses: lukka/run-cmake@v10
       with:
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9aac1e9d..04ebd431 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,6 +3,7 @@ project(Darkflame)
 include(CTest)
 
 set(CMAKE_CXX_STANDARD 20)
+set(CXX_STANDARD_REQUIRED ON)
 set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
 
 # Read variables from file
diff --git a/CMakePresets.json b/CMakePresets.json
index 77b8b242..2feabc53 100644
--- a/CMakePresets.json
+++ b/CMakePresets.json
@@ -20,7 +20,7 @@
         "inherits": "default"
       },
       {
-        "name": "ci-macos-11",
+        "name": "ci-macos-13",
         "displayName": "CI configure step for MacOS",
         "description": "Same as default, Used in GitHub actions workflow",
         "inherits": "default"
@@ -74,8 +74,8 @@
         "jobs": 2
       },
       {
-        "name": "ci-macos-11",
-        "configurePreset": "ci-macos-11",
+        "name": "ci-macos-13",
+        "configurePreset": "ci-macos-13",
         "displayName": "MacOS CI Build",
         "description": "This preset is used by the CI build on MacOS",
         "jobs": 2
@@ -95,8 +95,8 @@
         }
       },
       {
-        "name": "ci-macos-11",
-        "configurePreset": "ci-macos-11",
+        "name": "ci-macos-13",
+        "configurePreset": "ci-macos-13",
         "displayName": "CI Tests on MacOS",
         "description": "Runs all tests on a Mac configuration",
 		"execution": {
diff --git a/dCommon/CMakeLists.txt b/dCommon/CMakeLists.txt
index fec1a2d7..32f24028 100644
--- a/dCommon/CMakeLists.txt
+++ b/dCommon/CMakeLists.txt
@@ -68,3 +68,8 @@ else ()
 endif ()
 
 target_link_libraries(dCommon ZLIB::ZLIB)
+
+# Disable deprecation warnings on MD5.cpp and SHA512.cpp for Apple Clang
+if (APPLE)
+	set_source_files_properties("MD5.cpp" "SHA512.cpp" PROPERTIES COMPILE_FLAGS "-Wno-deprecated-declarations")
+endif()
diff --git a/dGame/UserManager.cpp b/dGame/UserManager.cpp
index fc582108..b98569eb 100644
--- a/dGame/UserManager.cpp
+++ b/dGame/UserManager.cpp
@@ -451,7 +451,7 @@ void UserManager::RenameCharacter(const SystemAddress& sysAddr, Packet* packet)
 		"User %i tried to rename a character that it does not own!",
 		u->GetAccountID());
 
-	std::find_if(u->GetCharacters().begin(), u->GetCharacters().end(), [&](Character* c) {
+	auto unusedItr = std::find_if(u->GetCharacters().begin(), u->GetCharacters().end(), [&](Character* c) {
 		if (c->GetID() == charID) {
 			character = c;
 			return true;
diff --git a/dGame/dPropertyBehaviors/ControlBehaviorMessages/AddStripMessage.cpp b/dGame/dPropertyBehaviors/ControlBehaviorMessages/AddStripMessage.cpp
index 5e75f6c4..6f0741dd 100644
--- a/dGame/dPropertyBehaviors/ControlBehaviorMessages/AddStripMessage.cpp
+++ b/dGame/dPropertyBehaviors/ControlBehaviorMessages/AddStripMessage.cpp
@@ -22,3 +22,7 @@ AddStripMessage::AddStripMessage(AMFArrayValue* arguments) : BehaviorMessageBase
 	}
 	LOG_DEBUG("number of actions %i", actionsToAdd.size());
 }
+
+std::vector<Action> AddStripMessage::GetActionsToAdd() const {
+	return actionsToAdd;
+}
diff --git a/dGame/dPropertyBehaviors/ControlBehaviorMessages/AddStripMessage.h b/dGame/dPropertyBehaviors/ControlBehaviorMessages/AddStripMessage.h
index 0b9a09e3..5cceb510 100644
--- a/dGame/dPropertyBehaviors/ControlBehaviorMessages/AddStripMessage.h
+++ b/dGame/dPropertyBehaviors/ControlBehaviorMessages/AddStripMessage.h
@@ -21,7 +21,7 @@ public:
 	AddStripMessage(AMFArrayValue* arguments);
 	StripUiPosition GetPosition() const { return position; };
 	ActionContext GetActionContext() const { return actionContext; };
-	std::vector<Action> GetActionsToAdd() const { return actionsToAdd; };
+	std::vector<Action> GetActionsToAdd() const;
 private:
 	StripUiPosition position;
 	ActionContext actionContext;
diff --git a/thirdparty/SQLite/CMakeLists.txt b/thirdparty/SQLite/CMakeLists.txt
index ba45f015..3aa066a4 100644
--- a/thirdparty/SQLite/CMakeLists.txt
+++ b/thirdparty/SQLite/CMakeLists.txt
@@ -14,6 +14,6 @@ if(UNIX)
 	if(NOT APPLE)
 		target_compile_options(sqlite3 PRIVATE "-Wno-return-local-addr" "-Wno-maybe-uninitialized")
 	else()
-		target_compile_options(sqlite3 PRIVATE "-Wno-return-stack-address" "-Wno-uninitialized")
+		target_compile_options(sqlite3 PRIVATE "-Wno-return-stack-address" "-Wno-uninitialized" "-Wno-deprecated-declarations")
 	endif()
 endif()