From 778fdecd56ff47140a0e75718c0ad3829a4b770b Mon Sep 17 00:00:00 2001
From: Yuki Yasoshima <yuki@MacBook-Air.local>
Date: Mon, 14 Jul 2025 20:59:08 +0900
Subject: [PATCH 1/4] update packages

---
 Package.resolved | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Package.resolved b/Package.resolved
index 956bc577..b141b658 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -6,7 +6,7 @@
       "location" : "https://github.com/objective-audio/cpp_utils.git",
       "state" : {
         "branch" : "master",
-        "revision" : "386510b9f3ab41c1abfae773f5cf60da68a22e21"
+        "revision" : "933bcbd39eb182c188acffead563516dfff89db8"
       }
     }
   ],

From 020493fbf491fc4568348c5ea92adc84024034f9 Mon Sep 17 00:00:00 2001
From: Yuki Yasoshima <yuki@MacBook-Air.local>
Date: Mon, 14 Jul 2025 21:05:38 +0900
Subject: [PATCH 2/4] debug log

---
 .../audio-engine/include/audio-engine/utils/debug.cpp | 11 ++++-------
 .../audio-engine/include/audio-engine/utils/debug.h   |  9 ---------
 .../audio_basics_tests/debug_tests.mm                 |  4 ----
 3 files changed, 4 insertions(+), 20 deletions(-)

diff --git a/Sources/audio-engine/include/audio-engine/utils/debug.cpp b/Sources/audio-engine/include/audio-engine/utils/debug.cpp
index 2ee880b1..060bdcf3 100644
--- a/Sources/audio-engine/include/audio-engine/utils/debug.cpp
+++ b/Sources/audio-engine/include/audio-engine/utils/debug.cpp
@@ -4,24 +4,21 @@
 
 #include <audio-engine/utils/debug.h>
 
-#if DEBUG
-
 #include <iostream>
+#include <atomic>
 
 using namespace yas;
 
 namespace yas::audio {
-static bool _log_enabled = false;
+static std::atomic<bool> _log_enabled;
 }
 
 void audio::set_log_enabled(bool const enabled) {
-    _log_enabled = enabled;
+    _log_enabled.store(enabled);
 }
 
 void audio::log(std::string const &log) {
-    if (_log_enabled) {
+    if (_log_enabled.load()) {
         std::cout << log << std::endl;
     }
 }
-
-#endif
diff --git a/Sources/audio-engine/include/audio-engine/utils/debug.h b/Sources/audio-engine/include/audio-engine/utils/debug.h
index d914d220..b1a8600d 100644
--- a/Sources/audio-engine/include/audio-engine/utils/debug.h
+++ b/Sources/audio-engine/include/audio-engine/utils/debug.h
@@ -4,8 +4,6 @@
 
 #pragma once
 
-#if DEBUG
-
 #include <string>
 
 namespace yas::audio {
@@ -15,10 +13,3 @@ void log(std::string const &);
 
 #define yas_audio_set_log_enabled(__v) yas::audio::set_log_enabled(__v)
 #define yas_audio_log(__v) yas::audio::log(__v)
-
-#else
-
-#define yas_audio_set_log_enabled(__v)
-#define yas_audio_log(__v)
-
-#endif
diff --git a/Tests/audio-engine-tests/audio_basics_tests/debug_tests.mm b/Tests/audio-engine-tests/audio_basics_tests/debug_tests.mm
index 90f942cb..8aff1e69 100644
--- a/Tests/audio-engine-tests/audio_basics_tests/debug_tests.mm
+++ b/Tests/audio-engine-tests/audio_basics_tests/debug_tests.mm
@@ -5,8 +5,6 @@
 #import <XCTest/XCTest.h>
 #import "../test_utils.h"
 
-#if DEBUG
-
 @interface debug_tests : XCTestCase
 
 @end
@@ -22,5 +20,3 @@ - (void)test_debug_log {
 }
 
 @end
-
-#endif

From 7322efa076253458f4a31cc2db3019c1851cbba3 Mon Sep 17 00:00:00 2001
From: Yuki Yasoshima <yuki@MacBook-Air.local>
Date: Mon, 14 Jul 2025 21:17:52 +0900
Subject: [PATCH 3/4] update package version

---
 Package.swift | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Package.swift b/Package.swift
index 9738c5db..931877f2 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version: 5.9
+// swift-tools-version: 6.1
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription
@@ -78,6 +78,6 @@ let package = Package(
             ]
         ),
     ],
-    cLanguageStandard: .gnu18,
+    cLanguageStandard: .gnu2x,
     cxxLanguageStandard: .gnucxx2b
 )

From 191218f2e48f9e15484fba059e8bcb8f7c62338a Mon Sep 17 00:00:00 2001
From: Yuki Yasoshima <yuki@MacBook-Air.local>
Date: Mon, 14 Jul 2025 21:19:48 +0900
Subject: [PATCH 4/4] Select Xcode 16.4

---
 .github/workflows/main.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index f4531d7f..15774504 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -25,6 +25,9 @@ jobs:
         submodules: true
 
     # Runs a set of commands using the runners shell
+    - name: Select Xcode to 16.4
+      run:
+        sudo xcode-select --switch /Applications/Xcode_16.4.app
     - name: Run mac tests
       run:
         xcodebuild