Updated to version 3.4.2 for release

Passes expected relative paths to Android's AssetManager API instead of
absolute ones + fixes some indexing logic with trailing slashes.

.github/workflows/create-test-plan.py

@@ -117,8 +117,10 @@ JOB_SPECS = {
     "ubuntu-22.04": JobSpec(name="Ubuntu 22.04",                            os=JobOs.Ubuntu22_04,       platform=SdlPlatform.Linux,       artifact="SDL-ubuntu22.04", ),
     "ubuntu-latest": JobSpec(name="Ubuntu (latest)",                        os=JobOs.UbuntuLatest,      platform=SdlPlatform.Linux,       artifact="SDL-ubuntu-latest", ),
     "ubuntu-24.04-arm64": JobSpec(name="Ubuntu 24.04 (ARM64)",              os=JobOs.Ubuntu24_04_arm,   platform=SdlPlatform.Linux,       artifact="SDL-ubuntu24.04-arm64", ),
-    "steamrt3": JobSpec(name="Steam Linux Runtime 3.0 (x86_64)",            os=JobOs.UbuntuLatest,      platform=SdlPlatform.Linux,       artifact="SDL-steamrt3",           container="registry.gitlab.steamos.cloud/steamrt/sniper/sdk:latest", more_hard_deps = True, ),
+    "steamrt3": JobSpec(name="Steam Linux Runtime 3.0 (x86_64)",            os=JobOs.UbuntuLatest,      platform=SdlPlatform.Linux,       artifact="SDL-steamrt3",           container="registry.gitlab.steamos.cloud/steamrt/sniper/sdk:latest" ),
-    "steamrt3-arm64": JobSpec(name="Steam Linux Runtime 3.0 (arm64)",       os=JobOs.Ubuntu24_04_arm,   platform=SdlPlatform.Linux,       artifact="SDL-steamrt3-arm64",     container="registry.gitlab.steamos.cloud/steamrt/sniper/sdk/arm64:latest", more_hard_deps = True, ),
+    "steamrt3-arm64": JobSpec(name="Steam Linux Runtime 3.0 (arm64)",       os=JobOs.Ubuntu24_04_arm,   platform=SdlPlatform.Linux,       artifact="SDL-steamrt3-arm64",     container="registry.gitlab.steamos.cloud/steamrt/sniper/sdk/arm64:latest" ),
+    "steamrt4": JobSpec(name="Steam Linux Runtime 4.0 (x86_64)",            os=JobOs.UbuntuLatest,      platform=SdlPlatform.Linux,       artifact="SDL-steamrt4",           container="registry.gitlab.steamos.cloud/steamrt/steamrt4/sdk:latest", more_hard_deps = True, ),
+    "steamrt4-arm64": JobSpec(name="Steam Linux Runtime 4.0 (arm64)",       os=JobOs.Ubuntu24_04_arm,   platform=SdlPlatform.Linux,       artifact="SDL-steamrt4-arm64",     container="registry.gitlab.steamos.cloud/steamrt/steamrt4/sdk/arm64:latest", more_hard_deps = True, ),
     "ubuntu-intel-icx": JobSpec(name="Ubuntu 22.04 (Intel oneAPI)",         os=JobOs.Ubuntu22_04,       platform=SdlPlatform.Linux,       artifact="SDL-ubuntu22.04-oneapi", intel=IntelCompiler.Icx, ),
     "ubuntu-intel-icc": JobSpec(name="Ubuntu 22.04 (Intel Compiler)",       os=JobOs.Ubuntu22_04,       platform=SdlPlatform.Linux,       artifact="SDL-ubuntu22.04-icc",    intel=IntelCompiler.Icc, ),
     "macos-framework-x64":  JobSpec(name="MacOS (Framework) (x64)",         os=JobOs.Macos14,           platform=SdlPlatform.MacOS,       artifact="SDL-macos-framework",    apple_framework=True,  apple_archs={AppleArch.Aarch64, AppleArch.X86_64, }, xcode=True, ),

CMakeLists.txt

@@ -5,7 +5,7 @@ if(NOT DEFINED CMAKE_BUILD_TYPE)
 endif()
 
 # See docs/release_checklist.md
-project(SDL3 LANGUAGES C VERSION "3.4.1")
+project(SDL3 LANGUAGES C VERSION "3.4.2")
 
 if(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
   set(SDL3_MAINPROJECT ON)
@@ -46,6 +46,7 @@ endif()
 
 include(CheckLibraryExists)
 include(CheckIncludeFile)
+include(CheckIncludeFiles)
 include(CheckLanguage)
 include(CheckSymbolExists)
 include(CheckCSourceCompiles)
@@ -367,7 +368,7 @@ dep_option(SDL_RENDER_D3D12        "Enable the Direct3D 12 render driver" ON "SD
 dep_option(SDL_RENDER_METAL        "Enable the Metal render driver" ON "SDL_RENDER;APPLE" OFF)
 dep_option(SDL_RENDER_GPU          "Enable the SDL_GPU render driver" ON "SDL_RENDER;SDL_GPU" OFF)
 dep_option(SDL_VIVANTE             "Use Vivante EGL video driver" ON "${UNIX_SYS};SDL_CPU_ARM32" OFF)
-dep_option(SDL_VULKAN              "Enable Vulkan support" ON "SDL_VIDEO;ANDROID OR APPLE OR LINUX OR FREEBSD OR WINDOWS" OFF)
+dep_option(SDL_VULKAN              "Enable Vulkan support" ON "SDL_VIDEO;ANDROID OR APPLE OR LINUX OR FREEBSD OR OPENBSD OR WINDOWS" OFF)
 dep_option(SDL_RENDER_VULKAN       "Enable the Vulkan render driver" ON "SDL_RENDER;SDL_VULKAN" OFF)
 dep_option(SDL_METAL               "Enable Metal support" ON "APPLE" OFF)
 set_option(SDL_OPENVR              "Use OpenVR video driver" OFF)
@@ -378,7 +379,7 @@ dep_option(SDL_DUMMYCAMERA         "Support the dummy camera driver" ON SDL_CAME
 option_string(SDL_BACKGROUNDING_SIGNAL "number to use for magic backgrounding signal or 'OFF'" OFF)
 option_string(SDL_FOREGROUNDING_SIGNAL "number to use for magic foregrounding signal or 'OFF'" OFF)
 dep_option(SDL_HIDAPI              "Enable the HIDAPI subsystem" ON "NOT VISIONOS" OFF)
-dep_option(SDL_HIDAPI_LIBUSB       "Use libusb for low level joystick drivers" ON SDL_HIDAPI_LIBUSB_AVAILABLE OFF)
+dep_option(SDL_HIDAPI_LIBUSB       "Use libusb for low level joystick drivers" ON "SDL_HIDAPI;SDL_HIDAPI_LIBUSB_AVAILABLE" OFF)
 dep_option(SDL_HIDAPI_LIBUSB_SHARED "Dynamically load libusb support" ON "SDL_HIDAPI_LIBUSB;SDL_DEPS_SHARED" OFF)
 dep_option(SDL_HIDAPI_JOYSTICK     "Use HIDAPI for low level joystick drivers" ON SDL_HIDAPI OFF)
 dep_option(SDL_VIRTUAL_JOYSTICK    "Enable the virtual-joystick driver" ON SDL_HIDAPI OFF)
@@ -658,12 +659,7 @@ if(USE_GCC OR USE_CLANG OR USE_INTELCC OR USE_QCC)
     endif()
   endif()
 
-  if(APPLE)
+  if(NOT OPENBSD)
-    check_linker_flag(C "-Wl,-undefined,error" LINKER_SUPPORTS_WL_UNDEFINED_ERROR)
-    if(LINKER_SUPPORTS_WL_UNDEFINED_ERROR)
-      sdl_shared_link_options("-Wl,-undefined,error")
-    endif()
-  elseif(NOT OPENBSD)
     cmake_push_check_state()
     check_linker_flag(C "-Wl,--no-undefined" LINKER_SUPPORTS_WL_NO_UNDEFINED)
     #FIXME: originally this if had an additional "AND NOT (USE_CLANG AND WINDOWS)"
@@ -1294,22 +1290,25 @@ sdl_glob_sources(
   "${SDL3_SOURCE_DIR}/src/video/yuv2rgb/*.h"
 )
 
-# Build uclibc as a static library such that non-used symbols don't end up in the SDL3 shared library.
 file(GLOB SDL_UCLIBC_SOURCES "${SDL3_SOURCE_DIR}/src/libm/*.c")
-add_library(SDL_uclibc STATIC "${SDL_UCLIBC_SOURCES}")
-target_compile_definitions(SDL_uclibc PRIVATE USING_GENERATED_CONFIG_H)
-target_include_directories(SDL_uclibc PRIVATE "${SDL3_BINARY_DIR}/include-config-$<LOWER_CASE:$<CONFIG>>/build_config")
-target_include_directories(SDL_uclibc PRIVATE "${SDL3_SOURCE_DIR}/src")
-target_include_directories(SDL_uclibc PRIVATE "${SDL3_SOURCE_DIR}/include")
-SDL_AddCommonCompilerFlags(SDL_uclibc)
-target_compile_definitions(SDL_uclibc PRIVATE "$<$<CONFIG:Debug>:DEBUG>")
-sdl_sources(STATIC "$<TARGET_OBJECTS:SDL_uclibc>")
-set_property(TARGET SDL_uclibc PROPERTY UNITY_BUILD OFF)
 if(TARGET SDL3-shared)
+  # Build uclibc as a static library such that non-used symbols don't end up in the SDL3 shared library.
+  add_library(SDL_uclibc STATIC ${SDL_UCLIBC_SOURCES})
+  set_property(TARGET SDL_uclibc PROPERTY POSITION_INDEPENDENT_CODE TRUE)
+  target_compile_definitions(SDL_uclibc PRIVATE USING_GENERATED_CONFIG_H)
+  target_include_directories(SDL_uclibc PRIVATE "${SDL3_BINARY_DIR}/include-config-$<LOWER_CASE:$<CONFIG>>/build_config")
+  target_include_directories(SDL_uclibc PRIVATE "${SDL3_SOURCE_DIR}/src")
+  target_include_directories(SDL_uclibc PRIVATE "${SDL3_SOURCE_DIR}/include")
+  SDL_AddCommonCompilerFlags(SDL_uclibc)
+  target_compile_definitions(SDL_uclibc PRIVATE "$<$<CONFIG:Debug>:DEBUG>")
+  set_property(TARGET SDL_uclibc PROPERTY UNITY_BUILD OFF)
   target_link_libraries(SDL3-shared PRIVATE SDL_uclibc)
+  if(HAVE_GCC_FVISIBILITY)
+    set_property(TARGET SDL_uclibc PROPERTY C_VISIBILITY_PRESET "hidden")
+  endif()
 endif()
-if(HAVE_GCC_FVISIBILITY)
+if(TARGET SDL3-static)
-  set_property(TARGET SDL_uclibc PROPERTY C_VISIBILITY_PRESET "hidden")
+  target_sources(SDL3-static PRIVATE ${SDL_UCLIBC_SOURCES})
 endif()
 
 # Enable/disable various subsystems of the SDL library
@@ -1766,6 +1765,7 @@ elseif(EMSCRIPTEN)
 
 elseif(UNIX AND NOT APPLE AND NOT RISCOS AND NOT HAIKU)
 
+  set(SDL_DISABLE_DLOPEN_NOTES TRUE)
   if(SDL_DLOPEN_NOTES)
     set(CHECK_ELF_DLNOTES_SRC [==[
     #ifndef __ELF__
@@ -1778,10 +1778,10 @@ elseif(UNIX AND NOT APPLE AND NOT RISCOS AND NOT HAIKU)
       return argc + dlnote.hdr.a;
     }
     ]==])
-    set(SDL_DISABLE_DLOPEN_NOTES FALSE)
     check_c_source_compiles("${CHECK_ELF_DLNOTES_SRC}" COMPILER_SUPPORTS_ELFNOTES)
-    if(NOT COMPILER_SUPPORTS_ELFNOTES)
+    if(COMPILER_SUPPORTS_ELFNOTES)
-      set(SDL_DISABLE_DLOPEN_NOTES TRUE)
+      set(SDL_DISABLE_DLOPEN_NOTES FALSE)
+      set(HAVE_DLOPEN_NOTES TRUE)
     endif()
   endif()
 
@@ -3999,6 +3999,8 @@ if(SDL_SHARED)
   set_property(TARGET SDL3-shared PROPERTY INTERFACE_SDL3_SHARED TRUE)
   set_property(TARGET SDL3-shared APPEND PROPERTY COMPATIBLE_INTERFACE_STRING "SDL_VERSION")
   set_property(TARGET SDL3-shared PROPERTY INTERFACE_SDL_VERSION "SDL${SDL3_VERSION_MAJOR}")
+  set_property(TARGET SDL3-shared APPEND PROPERTY EXPORT_PROPERTIES "SDL_FULL_VERSION")
+  set_property(TARGET SDL3-shared PROPERTY SDL_FULL_VERSION "${PROJECT_VERSION}")
   if(NOT CMAKE_VERSION VERSION_LESS "3.16")
     target_precompile_headers(SDL3-shared PRIVATE "$<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:${PROJECT_SOURCE_DIR}/src/SDL_internal.h>")
   endif()
@@ -4023,6 +4025,8 @@ if(SDL_STATIC)
   set_property(TARGET SDL3-static PROPERTY INTERFACE_SDL3_SHARED FALSE)
   set_property(TARGET SDL3-static APPEND PROPERTY COMPATIBLE_INTERFACE_STRING "SDL_VERSION")
   set_property(TARGET SDL3-static PROPERTY INTERFACE_SDL_VERSION "SDL${SDL3_VERSION_MAJOR}")
+  set_property(TARGET SDL3-static APPEND PROPERTY EXPORT_PROPERTIES "SDL_FULL_VERSION")
+  set_property(TARGET SDL3-static PROPERTY SDL_FULL_VERSION "${PROJECT_VERSION}")
   if(NOT CMAKE_VERSION VERSION_LESS "3.16")
     target_precompile_headers(SDL3-static PRIVATE "$<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:${PROJECT_SOURCE_DIR}/src/SDL_internal.h>")
   endif()

LICENSE.txt

@@ -1,4 +1,4 @@
-Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
   
 This software is provided 'as-is', without any express or implied
 warranty.  In no event will the authors be held liable for any damages

VisualC-GDK/tests/testgdk/src/testgdk.cpp

@@ -1,5 +1,5 @@
 /*
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

Xcode/SDL/Info-Framework.plist

@@ -19,10 +19,10 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>3.4.1</string>
+	<string>3.4.2</string>
 	<key>CFBundleSignature</key>
 	<string>SDLX</string>
 	<key>CFBundleVersion</key>
-	<string>3.4.1</string>
+	<string>3.4.2</string>
 </dict>
 </plist>

Xcode/SDL/SDL.xcodeproj/project.pbxproj

@@ -3162,7 +3162,7 @@
 				CLANG_ENABLE_OBJC_ARC = YES;
 				DEPLOYMENT_POSTPROCESSING = YES;
 				DYLIB_COMPATIBILITY_VERSION = 401.0.0;
-				DYLIB_CURRENT_VERSION = 401.1.0;
+				DYLIB_CURRENT_VERSION = 401.2.0;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_ALTIVEC_EXTENSIONS = YES;
@@ -3197,7 +3197,7 @@
 					"@loader_path/Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 10.13;
-				MARKETING_VERSION = 3.4.1;
+				MARKETING_VERSION = 3.4.2;
 				OTHER_LDFLAGS = "$(CONFIG_FRAMEWORK_LDFLAGS)";
 				PRODUCT_BUNDLE_IDENTIFIER = org.libsdl.SDL3;
 				PRODUCT_NAME = SDL3;
@@ -3228,7 +3228,7 @@
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				DYLIB_COMPATIBILITY_VERSION = 401.0.0;
-				DYLIB_CURRENT_VERSION = 401.1.0;
+				DYLIB_CURRENT_VERSION = 401.2.0;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@@ -3260,7 +3260,7 @@
 					"@loader_path/Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 10.13;
-				MARKETING_VERSION = 3.4.1;
+				MARKETING_VERSION = 3.4.2;
 				ONLY_ACTIVE_ARCH = YES;
 				OTHER_LDFLAGS = "$(CONFIG_FRAMEWORK_LDFLAGS)";
 				PRODUCT_BUNDLE_IDENTIFIER = org.libsdl.SDL3;

Xcode/SDL/pkg-support/SDL.info

@@ -1,4 +1,4 @@
-Title SDL 3.4.1
+Title SDL 3.4.2
 Version 1
 Description SDL Library for macOS (http://www.libsdl.org)
 DefaultLocation /Library/Frameworks

android-project/app/proguard-rules.pro

@@ -69,6 +69,7 @@
 
 -keep,includedescriptorclasses,allowoptimization class org.libsdl.app.SDLControllerManager {
     void pollInputDevices();
+    void joystickSetLED(int, int, int, int);
     void pollHapticDevices();
     void hapticRun(int, float, int);
     void hapticRumble(int, float, float, int);

android-project/app/src/main/java/org/libsdl/app/SDLActivity.java

@@ -61,7 +61,7 @@ public class SDLActivity extends Activity implements View.OnSystemUiVisibilityCh
     private static final String TAG = "SDL";
     private static final int SDL_MAJOR_VERSION = 3;
     private static final int SDL_MINOR_VERSION = 4;
-    private static final int SDL_MICRO_VERSION = 1;
+    private static final int SDL_MICRO_VERSION = 2;
 /*
     // Display InputType.SOURCE/CLASS of events and devices
     //
@@ -1270,10 +1270,10 @@ public class SDLActivity extends Activity implements View.OnSystemUiVisibilityCh
         if (Build.MANUFACTURER.equals("MINIX") && Build.MODEL.equals("NEO-U1")) {
             return true;
         }
-        if (Build.MANUFACTURER.equals("Amlogic") && Build.MODEL.equals("X96-W")) {
+        if (Build.MANUFACTURER.equals("Amlogic") &&
-            return true;
+            (Build.MODEL.startsWith("TV") ||
-        }
+             Build.MODEL.equals("X96-W") ||
-        if (Build.MANUFACTURER.equals("Amlogic") && Build.MODEL.startsWith("TV")) {
+             Build.MODEL.equals("A95X-R1"))) {
             return true;
         }
         return false;

android-project/app/src/main/java/org/libsdl/app/SDLControllerManager.java

@@ -211,7 +211,7 @@ class SDLJoystickHandler {
     /**
      * Handles adding and removing of input devices.
      */
-    void pollInputDevices() {
+    synchronized void pollInputDevices() {
         int[] deviceIds = InputDevice.getDeviceIds();
 
         for (int device_id : deviceIds) {
@@ -307,7 +307,7 @@ class SDLJoystickHandler {
         }
     }
 
-    protected SDLJoystick getJoystick(int device_id) {
+    synchronized protected SDLJoystick getJoystick(int device_id) {
         for (SDLJoystick joystick : mJoysticks) {
             if (joystick.device_id == device_id) {
                 return joystick;
@@ -642,7 +642,7 @@ class SDLHapticHandler {
         }
     }
 
-    void pollHapticDevices() {
+    synchronized void pollHapticDevices() {
 
         final int deviceId_VIBRATOR_SERVICE = 999999;
         boolean hasVibratorService = false;
@@ -690,7 +690,7 @@ class SDLHapticHandler {
         }
     }
 
-    protected SDLHaptic getHaptic(int device_id) {
+    synchronized protected SDLHaptic getHaptic(int device_id) {
         for (SDLHaptic haptic : mHaptics) {
             if (haptic.device_id == device_id) {
                 return haptic;
@@ -755,6 +755,9 @@ class SDLGenericMotionListener_API14 implements View.OnGenericMotionListener {
 
                         // BUTTON_STYLUS_PRIMARY is 2^5, so shift by 4, and apply SDL_PEN_INPUT_DOWN/SDL_PEN_INPUT_ERASER_TIP
                         int buttons = (event.getButtonState() >> 4) | (1 << (toolType == MotionEvent.TOOL_TYPE_STYLUS ? 0 : 30));
+                        if ((event.getButtonState() & MotionEvent.BUTTON_TERTIARY) != 0) {
+                            buttons |= 0x08;
+                        }
 
                         SDLActivity.onNativePen(event.getPointerId(i), getPenDeviceType(event.getDevice()), buttons, action, x, y, p);
                         consumed = true;

android-project/app/src/main/java/org/libsdl/app/SDLSurface.java

@@ -280,6 +280,9 @@ public class SDLSurface extends SurfaceView implements SurfaceHolder.Callback,
 
                 // BUTTON_STYLUS_PRIMARY is 2^5, so shift by 4, and apply SDL_PEN_INPUT_DOWN/SDL_PEN_INPUT_ERASER_TIP
                 int buttonState = (event.getButtonState() >> 4) | (1 << (toolType == MotionEvent.TOOL_TYPE_STYLUS ? 0 : 30));
+                if ((event.getButtonState() & MotionEvent.BUTTON_TERTIARY) != 0) {
+                    buttonState |= 0x08;
+                }
 
                 SDLActivity.onNativePen(pointerId, SDLActivity.getMotionListener().getPenDeviceType(event.getDevice()), buttonState, action, x, y, p);
             } else { // MotionEvent.TOOL_TYPE_FINGER or MotionEvent.TOOL_TYPE_UNKNOWN

build-scripts/build-release.py

@@ -267,8 +267,12 @@ class Archiver:
 
     def close(self):
         # Archiver is intentionally made invalid after this function
+        for zf in self._zip_files:
+            zf.close()
         del self._zip_files
         self._zip_files = None
+        for tf in self._tar_files:
+            tf.close()
         del self._tar_files
         self._tar_files = None
 

build-scripts/build-web-examples.pl

@@ -1,7 +1,7 @@
 #!/usr/bin/perl -w
 
 # Simple DirectMedia Layer
-# Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+# Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 #
 # This software is provided 'as-is', without any express or implied
 # warranty.  In no event will the authors be held liable for any damages

build-scripts/check_stdlib_usage.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 #
 #  Simple DirectMedia Layer
-#  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+#  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 #
 #  This software is provided 'as-is', without any express or implied
 #  warranty.  In no event will the authors be held liable for any damages

build-scripts/gen_audio_channel_conversion.c

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -406,7 +406,7 @@ int main(void)
     printf(
         "/*\n"
         "  Simple DirectMedia Layer\n"
-        "  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>\n"
+        "  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>\n"
         "\n"
         "  This software is provided 'as-is', without any express or implied\n"
         "  warranty.  In no event will the authors be held liable for any damages\n"

build-scripts/makecasefoldhashtable.pl

@@ -1,7 +1,7 @@
 #!/usr/bin/perl -w
 
 #  Simple DirectMedia Layer
-#  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+#  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 #
 #  This software is provided 'as-is', without any express or implied
 #  warranty.  In no event will the authors be held liable for any damages
@@ -36,7 +36,7 @@ my $mem_used = 0;
 print <<__EOF__;
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken\@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken\@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

build-scripts/pkg-support/source/SDL_revision.h.cmake.in

@@ -1,6 +1,6 @@
 /*
  Simple DirectMedia Layer
- Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+ Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages

build-scripts/pkg-support/source/SDL_revision.h.in

@@ -1,6 +1,6 @@
 /*
  Simple DirectMedia Layer
- Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+ Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages

build-scripts/wikiheaders.pl

@@ -1,7 +1,7 @@
 #!/usr/bin/perl -w
 
 # Simple DirectMedia Layer
-# Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+# Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 #
 # This software is provided 'as-is', without any express or implied
 # warranty.  In no event will the authors be held liable for any damages

cmake/sdlchecks.cmake

@@ -457,7 +457,7 @@ macro(CheckX11)
               #include <X11/Xproto.h>
               #include <X11/extensions/XInput2.h>
               int event_type = XI_GesturePinchBegin;
-              XITouchClassInfo *t;
+              XIGesturePinchEvent *t;
               Status XIAllowTouchEvents(Display *a,int b,unsigned int c,Window d,int f) {
                 return (Status)0;
               }
@@ -1113,22 +1113,22 @@ macro(CheckUSBHID)
   cmake_push_check_state()
   check_library_exists(usbhid hid_init "" LIBUSBHID)
   if(LIBUSBHID)
-    check_include_file(usbhid.h HAVE_USBHID_H)
+    check_include_files("stdint.h;usbhid.h" HAVE_USBHID_H)
     if(HAVE_USBHID_H)
       set(USB_CFLAGS "-DHAVE_USBHID_H")
     endif()
 
-    check_include_file(libusbhid.h HAVE_LIBUSBHID_H)
+    check_include_files("stdint.h;libusbhid.h" HAVE_LIBUSBHID_H)
     if(HAVE_LIBUSBHID_H)
       string(APPEND USB_CFLAGS " -DHAVE_LIBUSBHID_H")
     endif()
     set(USB_LIBS ${USB_LIBS} usbhid)
   else()
-    check_include_file(usb.h HAVE_USB_H)
+    check_include_files("stdint.h;usb.h" HAVE_USB_H)
     if(HAVE_USB_H)
       set(USB_CFLAGS "-DHAVE_USB_H")
     endif()
-    check_include_file(libusb.h HAVE_LIBUSB_H)
+    check_include_files("stdint.h;libusb.h" HAVE_LIBUSB_H)
     if(HAVE_LIBUSB_H)
       string(APPEND USB_CFLAGS " -DHAVE_LIBUSB_H")
     endif()
@@ -1141,7 +1141,7 @@ macro(CheckUSBHID)
   string(APPEND CMAKE_REQUIRED_FLAGS " ${USB_CFLAGS}")
   list(APPEND CMAKE_REQUIRED_LIBRARIES ${USB_LIBS})
   check_c_source_compiles("
-       #include <sys/types.h>
+        #include <stdint.h>
         #if defined(HAVE_USB_H)
         #include <usb.h>
         #endif
@@ -1167,7 +1167,7 @@ macro(CheckUSBHID)
         }" HAVE_USBHID)
   if(HAVE_USBHID)
     check_c_source_compiles("
-          #include <sys/types.h>
+          #include <stdint.h>
           #if defined(HAVE_USB_H)
           #include <usb.h>
           #endif
@@ -1195,7 +1195,7 @@ macro(CheckUSBHID)
     endif()
 
     check_c_source_compiles("
-          #include <sys/types.h>
+          #include <stdint.h>
           #if defined(HAVE_USB_H)
           #include <usb.h>
           #endif
@@ -1270,12 +1270,15 @@ macro(CheckHIDAPI)
         cmake_pop_check_state()
         if(HAVE_LIBUSB_H)
           set(HAVE_LIBUSB TRUE)
-          target_get_dynamic_library(dynamic_libusb LibUSB::LibUSB)
+          if(SDL_HIDAPI_LIBUSB_SHARED)
-          if(SDL_HIDAPI_LIBUSB_SHARED AND dynamic_libusb)
+            target_get_dynamic_library(dynamic_libusb LibUSB::LibUSB)
-            set(HAVE_HIDAPI_LIBUSB_SHARED ON)
+            if(dynamic_libusb)
-            set(SDL_LIBUSB_DYNAMIC "\"${dynamic_libusb}\"")
+              set(HAVE_HIDAPI_LIBUSB_SHARED ON)
-            sdl_link_dependency(hidapi INCLUDES $<TARGET_PROPERTY:LibUSB::LibUSB,INTERFACE_INCLUDE_DIRECTORIES>)
+              set(SDL_LIBUSB_DYNAMIC "\"${dynamic_libusb}\"")
-          else()
+              sdl_link_dependency(hidapi INCLUDES $<TARGET_PROPERTY:LibUSB::LibUSB,INTERFACE_INCLUDE_DIRECTORIES>)
+            endif()
+          endif()
+          if(NOT HAVE_HIDAPI_LIBUSB_SHARED)
             sdl_link_dependency(hidapi LIBS LibUSB::LibUSB PKG_CONFIG_SPECS "${LibUSB_PKG_CONFIG_SPEC}" CMAKE_MODULE LibUSB)
           endif()
         endif()

cmake/test/test_pkgconfig.sh

@@ -30,12 +30,12 @@ SDL_LDFLAGS="$( pkg-config sdl3 --libs )"
 SDL_STATIC_LDFLAGS="$( pkg-config sdl3 --libs --static )"
 
 compile_cmd="$CC -c "$testdir/main_gui.c" -o main_gui_pkgconfig.c.o $SDL_CFLAGS $CFLAGS"
-link_cmd="$CC main_gui_pkgconfig.c.o -o ${EXEPREFIX}main_gui_pkgconfig${EXESUFFIX} $SDL_LDFLAGS $LDFLAGS"
+link_cmd="$CC main_gui_pkgconfig.c.o -o ${EXEPREFIX}main_gui_pkgconfig${EXESUFFIX} $SDL_CFLAGS $CFLAGS $SDL_LDFLAGS $LDFLAGS"
-static_link_cmd="$CC main_gui_pkgconfig.c.o -o ${EXEPREFIX}main_gui_pkgconfig_static${EXESUFFIX} $SDL_STATIC_LDFLAGS $LDFLAGS"
+static_link_cmd="$CC main_gui_pkgconfig.c.o -o ${EXEPREFIX}main_gui_pkgconfig_static${EXESUFFIX} $SDL_CFLAGS $CFLAGS $SDL_STATIC_LDFLAGS $LDFLAGS"
 
 echo "-- CC:                 $CC"
 echo "-- CFLAGS:             $CFLAGS"
-echo "-- LDFLASG:            $LDFLAGS"
+echo "-- LDFLAGS:            $LDFLAGS"
 echo "-- SDL_CFLAGS:         $SDL_CFLAGS"
 echo "-- SDL_LDFLAGS:        $SDL_LDFLAGS"
 echo "-- SDL_STATIC_LDFLAGS: $SDL_STATIC_LDFLAGS"

docs/hello.c

@@ -1,5 +1,5 @@
 /*
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

examples/renderer/06-textures/textures.c

@@ -40,14 +40,14 @@ SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[])
 
     /* Textures are pixel data that we upload to the video hardware for fast drawing. Lots of 2D
        engines refer to these as "sprites." We'll do a static texture (upload once, draw many
-       times) with data from a bitmap file. */
+       times) with data from a png file. */
 
     /* SDL_Surface is pixel data the CPU can access. SDL_Texture is pixel data the GPU can access.
        Load a .png into a surface, move it to a texture from there. */
     SDL_asprintf(&png_path, "%ssample.png", SDL_GetBasePath());  /* allocate a string of the full file path */
     surface = SDL_LoadPNG(png_path);
     if (!surface) {
-        SDL_Log("Couldn't load bitmap: %s", SDL_GetError());
+        SDL_Log("Couldn't load png: %s", SDL_GetError());
         return SDL_APP_FAILURE;
     }
 

examples/renderer/07-streaming-textures/streaming-textures.c

@@ -66,7 +66,7 @@ SDL_AppResult SDL_AppIterate(void *appstate)
 
     /* To update a streaming texture, you need to lock it first. This gets you access to the pixels.
        Note that this is considered a _write-only_ operation: the buffer you get from locking
-       might not acutally have the existing contents of the texture, and you have to write to every
+       might not actually have the existing contents of the texture, and you have to write to every
        locked pixel! */
 
     /* You can use SDL_LockTexture() to get an array of raw pixels, but we're going to use

examples/save-rendering-to-bitmaps.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

examples/template.html

@@ -92,7 +92,7 @@
 
       #output-container:hover,
       #output-container:focus-within {
-        top: 50%;
+        top: 20%;
       }
 
       #output-container:focus-within {
@@ -151,7 +151,7 @@
 
       #source-code:hover,
       #source-code:focus-within {
-        top: 50%;
+        top: 20%;
       }
 
       #source-code:focus-within {
@@ -241,7 +241,7 @@
           return function(text) {
             var elem = document.getElementById('output-container');
             if (elem.style['top'] == '') {
-                elem.style['top'] = '50%';
+                elem.style['top'] = '20%';
                 setTimeout(function() { elem.style['top'] = ''; }, 3000);
             }
 

include/SDL3/SDL.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -20,7 +20,7 @@
 */
 
 /**
- * Main include header for the SDL library, version 3.4.1
+ * Main include header for the SDL library, version 3.4.2
  *
  * It is almost always best to include just this one header instead of
  * picking out individual headers included here. There are exceptions to

include/SDL3/SDL_assert.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -136,7 +136,7 @@ extern "C" {
     #define SDL_TriggerBreakpoint() __builtin_debugtrap()
 #elif SDL_HAS_BUILTIN(__builtin_trap)
     #define SDL_TriggerBreakpoint() __builtin_trap()
-#elif (defined(__GNUC__) || defined(__clang__) || defined(__TINYC__)) && (defined(__i386__) || defined(__x86_64__))
+#elif (defined(__GNUC__) || defined(__clang__) || defined(__TINYC__) || defined(__slimcc__)) && (defined(__i386__) || defined(__x86_64__))
     #define SDL_TriggerBreakpoint() __asm__ __volatile__ ( "int $3\n\t" )
 #elif (defined(__GNUC__) || defined(__clang__)) && defined(__riscv)
     #define SDL_TriggerBreakpoint() __asm__ __volatile__ ( "ebreak\n\t" )
@@ -160,7 +160,7 @@ extern "C" {
 #ifdef SDL_WIKI_DOCUMENTATION_SECTION
 
 /**
- * A macro that reports the current function being compiled.
+ * A constant that contains the current function being compiled.
  *
  * If SDL can't figure how the compiler reports this, it will use "???".
  *
@@ -168,13 +168,15 @@ extern "C" {
  */
 #define SDL_FUNCTION __FUNCTION__
 
-#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 supports __func__ as a standard. */
+#elif !defined(SDL_FUNCTION)
+#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 supports __func__ as a standard. */
 #   define SDL_FUNCTION __func__
 #elif ((defined(__GNUC__) && (__GNUC__ >= 2)) || defined(_MSC_VER) || defined (__WATCOMC__))
 #   define SDL_FUNCTION __FUNCTION__
 #else
 #   define SDL_FUNCTION "???"
 #endif
+#endif
 
 #ifdef SDL_WIKI_DOCUMENTATION_SECTION
 

include/SDL3/SDL_asyncio.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -213,6 +213,8 @@ typedef struct SDL_AsyncIOQueue SDL_AsyncIOQueue;
  * \returns a pointer to the SDL_AsyncIO structure that is created or NULL on
  *          failure; call SDL_GetError() for more information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_CloseAsyncIO
@@ -531,6 +533,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_SignalAsyncIOQueue(SDL_AsyncIOQueue *queue)
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_LoadFile_IO

include/SDL3/SDL_atomic.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_audio.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_begin_code.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_bits.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_blendmode.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_camera.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_clipboard.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_close_code.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_copying.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_cpuinfo.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_dialog.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_dlopennote.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_egl.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_endian.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_error.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_events.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -1256,15 +1256,13 @@ extern SDL_DECLSPEC void SDLCALL SDL_FlushEvents(Uint32 minType, Uint32 maxType)
  * Poll for currently pending events.
  *
  * If `event` is not NULL, the next event is removed from the queue and stored
- * in the SDL_Event structure pointed to by `event`. The 1 returned refers to
+ * in the SDL_Event structure pointed to by `event`.
- * this event, immediately stored in the SDL Event structure -- not an event
- * to follow.
  *
- * If `event` is NULL, it simply returns 1 if there is an event in the queue,
+ * If `event` is NULL, it simply returns true if there is an event in the queue,
  * but will not remove it from the queue.
  *
  * As this function may implicitly call SDL_PumpEvents(), you can only call
- * this function in the thread that set the video mode.
+ * this function in the thread that initialized the video subsystem.
  *
  * SDL_PollEvent() is the favored way of receiving system events since it can
  * be done from the main loop and does not suspend the main loop while waiting

include/SDL3/SDL_filesystem.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -242,8 +242,7 @@ extern SDL_DECLSPEC const char * SDLCALL SDL_GetUserFolder(SDL_Folder folder);
  * Types of filesystem entries.
  *
  * Note that there may be other sorts of items on a filesystem: devices,
- * symlinks, named pipes, etc. They are currently reported as
+ * named pipes, etc. They are currently reported as SDL_PATHTYPE_OTHER.
- * SDL_PATHTYPE_OTHER.
  *
  * \since This enum is available since SDL 3.2.0.
  *
@@ -457,6 +456,10 @@ extern SDL_DECLSPEC bool SDLCALL SDL_CopyFile(const char *oldpath, const char *n
 /**
  * Get information about a filesystem path.
  *
+ * Symlinks, on filesystems that support them, are always followed, so you will
+ * always get information on what the symlink eventually points to, and not the
+ * symlink itself.
+ *
  * \param path the path to query.
  * \param info a pointer filled in with information about the path, or NULL to
  *             check for the existence of a file.

include/SDL3/SDL_gamepad.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_gpu.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -1398,11 +1398,12 @@ typedef struct SDL_GPUViewport
  * SDL_DownloadFromGPUTexture are used as default values respectively and data
  * is considered to be tightly packed.
  *
- * **WARNING**: Direct3D 12 requires texture data row pitch to be 256 byte
+ * **WARNING**: On some older/integrated hardware, Direct3D 12 requires texture
- * aligned, and offsets to be aligned to 512 bytes. If they are not, SDL will
+ * data row pitch to be 256 byte aligned, and offsets to be aligned to 512 bytes.
- * make a temporary copy of the data that is properly aligned, but this adds
+ * If they are not, SDL will make a temporary copy of the data that is properly
- * overhead to the transfer process. Apps can avoid this by aligning their
+ * aligned, but this adds overhead to the transfer process. Apps can avoid this
- * data appropriately, or using a different GPU backend than Direct3D 12.
+ * by aligning their data appropriately, or using a different GPU backend than
+ * Direct3D 12.
  *
  * \since This struct is available since SDL 3.2.0.
  *
@@ -2306,6 +2307,21 @@ extern SDL_DECLSPEC SDL_GPUDevice * SDLCALL SDL_CreateGPUDevice(
  *   useful for targeting Intel Haswell and Broadwell GPUs; other hardware
  *   either supports Tier 2 Resource Binding or does not support D3D12 in any
  *   capacity. Defaults to false.
+ * - `SDL_PROP_GPU_DEVICE_CREATE_D3D12_AGILITY_SDK_VERSION_NUMBER`: Certain
+ *   feature checks are only possible on Windows 11 by default. By setting
+ *   this alongside `SDL_PROP_GPU_DEVICE_CREATE_D3D12_AGILITY_SDK_PATH_STRING`
+ *   and vendoring D3D12Core.dll from the D3D12 Agility SDK, you can make
+ *   those feature checks possible on older platforms. The version you provide
+ *   must match the one given in the DLL.
+ * - `SDL_PROP_GPU_DEVICE_CREATE_D3D12_AGILITY_SDK_PATH_STRING`: Certain
+ *   feature checks are only possible on Windows 11 by default. By setting
+ *   this alongside
+ *   `SDL_PROP_GPU_DEVICE_CREATE_D3D12_AGILITY_SDK_VERSION_NUMBER` and
+ *   vendoring D3D12Core.dll from the D3D12 Agility SDK, you can make those
+ *   feature checks possible on older platforms. The path you provide must be
+ *   relative to the executable path of your app. Be sure not to put the DLL
+ *   in the same directory as the exe; Microsoft strongly advises against
+ *   this!
  *
  * With the Vulkan backend:
  *
@@ -2321,6 +2337,15 @@ extern SDL_DECLSPEC SDL_GPUDevice * SDLCALL SDL_CreateGPUDevice(
  *   increasing the API version and opting into extensions aside from the
  *   minimal set SDL requires.
  *
+ * With the Metal backend: -
+ * `SDL_PROP_GPU_DEVICE_CREATE_METAL_ALLOW_MACFAMILY1_BOOLEAN`: By default,
+ * macOS support requires what Apple calls "MTLGPUFamilyMac2" hardware or
+ * newer. However, an application can set this property to true to enable
+ * support for "MTLGPUFamilyMac1" hardware, if (and only if) the application
+ * does not write to sRGB textures. (For history's sake: MacFamily1 also does
+ * not support indirect command buffers, MSAA depth resolve, and stencil
+ * resolve/feedback, but these are not exposed features in SDL_GPU.)
+ *
  * \param props the properties to use.
  * \returns a GPU context on success or NULL on failure; call SDL_GetError()
  *          for more information.
@@ -2351,8 +2376,11 @@ extern SDL_DECLSPEC SDL_GPUDevice * SDLCALL SDL_CreateGPUDeviceWithProperties(
 #define SDL_PROP_GPU_DEVICE_CREATE_SHADERS_METALLIB_BOOLEAN                     "SDL.gpu.device.create.shaders.metallib"
 #define SDL_PROP_GPU_DEVICE_CREATE_D3D12_ALLOW_FEWER_RESOURCE_SLOTS_BOOLEAN     "SDL.gpu.device.create.d3d12.allowtier1resourcebinding"
 #define SDL_PROP_GPU_DEVICE_CREATE_D3D12_SEMANTIC_NAME_STRING                   "SDL.gpu.device.create.d3d12.semantic"
-#define SDL_PROP_GPU_DEVICE_CREATE_VULKAN_REQUIRE_HARDWARE_ACCELERATION_BOOLEAN         "SDL.gpu.device.create.vulkan.requirehardwareacceleration"
+#define SDL_PROP_GPU_DEVICE_CREATE_D3D12_AGILITY_SDK_VERSION_NUMBER             "SDL.gpu.device.create.d3d12.agility_sdk_version"
+#define SDL_PROP_GPU_DEVICE_CREATE_D3D12_AGILITY_SDK_PATH_STRING                "SDL.gpu.device.create.d3d12.agility_sdk_path"
+#define SDL_PROP_GPU_DEVICE_CREATE_VULKAN_REQUIRE_HARDWARE_ACCELERATION_BOOLEAN "SDL.gpu.device.create.vulkan.requirehardwareacceleration"
 #define SDL_PROP_GPU_DEVICE_CREATE_VULKAN_OPTIONS_POINTER                       "SDL.gpu.device.create.vulkan.options"
+#define SDL_PROP_GPU_DEVICE_CREATE_METAL_ALLOW_MACFAMILY1_BOOLEAN               "SDL.gpu.device.create.metal.allowmacfamily1"
 
 
 /**

include/SDL3/SDL_guid.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_haptic.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_hidapi.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_hints.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -1095,7 +1095,7 @@ extern "C" {
  *
  * This hint should be set before SDL is initialized.
  *
- * \since This hint is available since SDL 3.2.0.
+ * \since This hint is available since SDL 3.4.0.
  */
 #define SDL_HINT_HIDAPI_LIBUSB_GAMECUBE "SDL_HIDAPI_LIBUSB_GAMECUBE"
 
@@ -1778,10 +1778,16 @@ extern "C" {
  * A variable controlling whether the HIDAPI driver for HORI licensed Steam
  * controllers should be used.
  *
- * This variable can be set to the following values: "0" - HIDAPI driver is
+ * The variable can be set to the following values:
- * not used "1" - HIDAPI driver is used
  *
- * The default is the value of SDL_HINT_JOYSTICK_HIDAPI
+ * - "0": HIDAPI driver is not used.
+ * - "1": HIDAPI driver is used.
+ *
+ * The default is the value of SDL_HINT_JOYSTICK_HIDAPI.
+ *
+ * This hint should be set before initializing joysticks and gamepads.
+ *
+ * \since This hint is available since SDL 3.2.0.
  */
 #define SDL_HINT_JOYSTICK_HIDAPI_STEAM_HORI "SDL_JOYSTICK_HIDAPI_STEAM_HORI"
 
@@ -1789,12 +1795,16 @@ extern "C" {
  * A variable controlling whether the HIDAPI driver for some Logitech wheels
  * should be used.
  *
- * This variable can be set to the following values:
+ * The variable can be set to the following values:
  *
- * - "0": HIDAPI driver is not used
+ * - "0": HIDAPI driver is not used.
- * - "1": HIDAPI driver is used
+ * - "1": HIDAPI driver is used.
  *
- * The default is the value of SDL_HINT_JOYSTICK_HIDAPI
+ * The default is the value of SDL_HINT_JOYSTICK_HIDAPI.
+ *
+ * This hint should be set before initializing joysticks and gamepads.
+ *
+ * \since This hint is available since SDL 3.4.0.
  */
 #define SDL_HINT_JOYSTICK_HIDAPI_LG4FF "SDL_JOYSTICK_HIDAPI_LG4FF"
 
@@ -1802,11 +1812,16 @@ extern "C" {
  * A variable controlling whether the HIDAPI driver for 8BitDo controllers
  * should be used.
  *
- * This variable can be set to the following values:
+ * The variable can be set to the following values:
  *
- * "0" - HIDAPI driver is not used. "1" - HIDAPI driver is used.
+ * - "0": HIDAPI driver is not used.
+ * - "1": HIDAPI driver is used.
  *
- * The default is the value of SDL_HINT_JOYSTICK_HIDAPI
+ * The default is the value of SDL_HINT_JOYSTICK_HIDAPI.
+ *
+ * This hint should be set before initializing joysticks and gamepads.
+ *
+ * \since This hint is available since SDL 3.4.0.
  */
 #define SDL_HINT_JOYSTICK_HIDAPI_8BITDO "SDL_JOYSTICK_HIDAPI_8BITDO"
 
@@ -1816,11 +1831,16 @@ extern "C" {
  *
  * More info - https://github.com/HandHeldLegend/SInput-HID
  *
- * This variable can be set to the following values:
+ * The variable can be set to the following values:
  *
- * "0" - HIDAPI driver is not used. "1" - HIDAPI driver is used.
+ * - "0": HIDAPI driver is not used.
+ * - "1": HIDAPI driver is used.
  *
- * The default is the value of SDL_HINT_JOYSTICK_HIDAPI
+ * The default is the value of SDL_HINT_JOYSTICK_HIDAPI.
+ *
+ * This hint should be set before initializing joysticks and gamepads.
+ *
+ * \since This hint is available since SDL 3.4.0.
  */
 #define SDL_HINT_JOYSTICK_HIDAPI_SINPUT "SDL_JOYSTICK_HIDAPI_SINPUT"
 
@@ -1828,11 +1848,16 @@ extern "C" {
  * A variable controlling whether the HIDAPI driver for ZUIKI controllers
  * should be used.
  *
- * This variable can be set to the following values:
+ * The variable can be set to the following values:
  *
- * "0" - HIDAPI driver is not used. "1" - HIDAPI driver is used.
+ * - "0": HIDAPI driver is not used.
+ * - "1": HIDAPI driver is used.
  *
- * The default is the value of SDL_HINT_JOYSTICK_HIDAPI
+ * The default is the value of SDL_HINT_JOYSTICK_HIDAPI.
+ *
+ * This hint should be set before initializing joysticks and gamepads.
+ *
+ * \since This hint is available since SDL 3.4.0.
  */
 #define SDL_HINT_JOYSTICK_HIDAPI_ZUIKI "SDL_JOYSTICK_HIDAPI_ZUIKI"
 
@@ -1840,11 +1865,16 @@ extern "C" {
  * A variable controlling whether the HIDAPI driver for Flydigi controllers
  * should be used.
  *
- * This variable can be set to the following values:
+ * The variable can be set to the following values:
  *
- * "0" - HIDAPI driver is not used. "1" - HIDAPI driver is used.
+ * - "0": HIDAPI driver is not used.
+ * - "1": HIDAPI driver is used.
  *
- * The default is the value of SDL_HINT_JOYSTICK_HIDAPI
+ * The default is the value of SDL_HINT_JOYSTICK_HIDAPI.
+ *
+ * This hint should be set before initializing joysticks and gamepads.
+ *
+ * \since This hint is available since SDL 3.4.0.
  */
 #define SDL_HINT_JOYSTICK_HIDAPI_FLYDIGI "SDL_JOYSTICK_HIDAPI_FLYDIGI"
 
@@ -2619,8 +2649,8 @@ extern "C" {
  *
  * The variable can be set to the following values:
  *
- * - "0": Holding a key will open the accents menu for that key.
+ * - "0": Holding a key will repeat the pressed key.
- * - "1": Holding a key will repeat the pressed key. (default)
+ * - "1": Holding a key will open the accents menu for that key. (default)
  *
  * This hint needs to be set before SDL_Init().
  *
@@ -2976,6 +3006,46 @@ extern "C" {
  */
 #define SDL_HINT_OPENGL_ES_DRIVER "SDL_OPENGL_ES_DRIVER"
 
+/**
+ * A variable controlling whether to force an sRGB-capable OpenGL context.
+ *
+ * At OpenGL context creation time, some platforms can request an sRGB-capable
+ * context. However, sometimes any form of the request can cause surprising
+ * results on some drivers, platforms, and hardware. Usually the surprise is
+ * in the form of rendering that is either a little darker or a little
+ * brighter than intended.
+ *
+ * This hint allows the user to override the app's sRGB requests and either
+ * force a specific value, or avoid requesting anything at all, depending on
+ * what makes things work correctly for their system.
+ *
+ * This is meant as a fail-safe; apps should probably not explicitly set this,
+ * and most users should not, either.
+ *
+ * Note that some platforms cannot make this request at all, and on all
+ * platforms this request can be denied by the operating system.
+ *
+ * In addition to attempting to obtain the type of sRGB-capable OpenGL context
+ * requested by this hint, SDL will try to force the state of
+ * GL_FRAMEBUFFER_SRGB on the new context, if appropriate.
+ *
+ * The variable can be set to the following values:
+ *
+ * - "0": Force a request for an OpenGL context that is _not_ sRGB-capable.
+ * - "1": Force a request for an OpenGL context that _is_ sRGB-capable.
+ * - "skip": Don't make any request for an sRGB-capable context
+ *   (don't specify the attribute at all during context creation time).
+ * - any other string is undefined behavior.
+ *
+ * If unset, or set to an empty string, SDL will make a request using the
+ * value the app specified with the SDL_GL_FRAMEBUFFER_SRGB_CAPABLE attribute.
+ *
+ * This hint should be set before an OpenGL context is created.
+ *
+ * \since This hint is available since SDL 3.4.2.
+ */
+#define SDL_HINT_OPENGL_FORCE_SRGB_FRAMEBUFFER "SDL_OPENGL_FORCE_SRGB_FRAMEBUFFER"
+
 /**
  * Mechanism to specify openvr_api library location
  *
@@ -3300,33 +3370,45 @@ extern "C" {
 #define SDL_HINT_ROG_GAMEPAD_MICE_EXCLUDED "SDL_ROG_GAMEPAD_MICE_EXCLUDED"
 
 /**
- * Variable controlling the width of the PS2's framebuffer in pixels
+ * A variable controlling the width of the PS2's framebuffer in pixels.
  *
- * By default, this variable is "640"
+ * By default, the variable is "640".
+ *
+ * \since This hint is available since SDL 3.4.0.
  */
 #define SDL_HINT_PS2_GS_WIDTH    "SDL_PS2_GS_WIDTH"
 
 /**
- * Variable controlling the height of the PS2's framebuffer in pixels
+ * A variable controlling the height of the PS2's framebuffer in pixels.
  *
- * By default, this variable is "448"
+ * By default, the variable is "448".
+ *
+ * \since This hint is available since SDL 3.4.0.
  */
 #define SDL_HINT_PS2_GS_HEIGHT    "SDL_PS2_GS_HEIGHT"
 
 /**
- * Variable controlling whether the signal is interlaced or progressive
+ * A variable controlling whether the signal is interlaced or progressive.
+ *
+ * The variable can be set to the following values:
  *
  * - "0": Image is interlaced. (default)
- * - "1": Image is progressive
+ * - "1": Image is progressive.
+ *
+ * \since This hint is available since SDL 3.4.0.
  */
 #define SDL_HINT_PS2_GS_PROGRESSIVE    "SDL_PS2_GS_PROGRESSIVE"
 
 /**
- * Variable controlling the video mode of the console
+ * A variable controlling the video mode of the console.
+ *
+ * The variable can be set to the following values:
  *
  * - "": Console-native. (default)
- * - "NTSC": 60hz region
+ * - "NTSC": 60hz region.
- * - "PAL": 50hz region
+ * - "PAL": 50hz region.
+ *
+ * \since This hint is available since SDL 3.4.0.
  */
 #define SDL_HINT_PS2_GS_MODE    "SDL_PS2_GS_MODE"
 

include/SDL3/SDL_init.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -224,6 +224,8 @@ typedef void (SDLCALL *SDL_AppQuit_func)(void *appstate, SDL_AppResult result);
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_SetAppMetadata
@@ -244,6 +246,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_Init(SDL_InitFlags flags);
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_Init
@@ -260,6 +264,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_InitSubSystem(SDL_InitFlags flags);
  *
  * \param flags any of the flags used by SDL_Init(); see SDL_Init for details.
  *
+ * \threadsafety This function is not thread safe.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_InitSubSystem
@@ -274,6 +280,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_QuitSubSystem(SDL_InitFlags flags);
  * \returns a mask of all initialized subsystems if `flags` is 0, otherwise it
  *          returns the initialization status of the specified subsystems.
  *
+ * \threadsafety This function is not thread safe.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_Init
@@ -292,6 +300,8 @@ extern SDL_DECLSPEC SDL_InitFlags SDLCALL SDL_WasInit(SDL_InitFlags flags);
  * application is shutdown, but it is not wise to do this from a library or
  * other dynamically loaded code.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_Init

include/SDL3/SDL_intrin.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_iostream.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_joystick.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_keyboard.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_keycode.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_loadso.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_locale.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -102,6 +102,8 @@ typedef struct SDL_Locale
  *          allocation that should be freed with SDL_free() when it is no
  *          longer needed.
  *
+ * \threadsafety This function is not thread safe.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC SDL_Locale ** SDLCALL SDL_GetPreferredLocales(int *count);

include/SDL3/SDL_log.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_main.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -333,6 +333,8 @@ extern "C" {
  * \returns SDL_APP_FAILURE to terminate with an error, SDL_APP_SUCCESS to
  *          terminate with success, SDL_APP_CONTINUE to continue.
  *
+ * \threadsafety This function is called once by SDL, at startup, on a single thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_AppIterate
@@ -537,6 +539,8 @@ extern SDLMAIN_DECLSPEC int SDLCALL SDL_main(int argc, char *argv[]);
  * will not be changed it is necessary to define SDL_MAIN_HANDLED before
  * including SDL.h.
  *
+ * \threadsafety This function is not thread safe.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_Init
@@ -629,6 +633,8 @@ extern SDL_DECLSPEC int SDLCALL SDL_EnterAppMainCallbacks(int argc, char *argv[]
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety This function is not thread safe.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_RegisterApp(const char *name, Uint32 style, void *hInst);
@@ -646,6 +652,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_RegisterApp(const char *name, Uint32 style,
  * deregistered when the registration counter in SDL_RegisterApp decrements to
  * zero through calls to this function.
  *
+ * \threadsafety This function is not thread safe.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC void SDLCALL SDL_UnregisterApp(void);
@@ -658,6 +666,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_UnregisterApp(void);
  * This function is only needed for Xbox GDK support; all other platforms will
  * do nothing and set an "unsupported" error message.
  *
+ * \threadsafety This function is not thread safe.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC void SDLCALL SDL_GDKSuspendComplete(void);

include/SDL3/SDL_main_impl.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_messagebox.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -168,6 +168,8 @@ typedef struct SDL_MessageBoxData
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_ShowSimpleMessageBox
@@ -210,6 +212,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_ShowMessageBox(const SDL_MessageBoxData *me
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_ShowMessageBox

include/SDL3/SDL_metal.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -65,6 +65,8 @@ typedef void *SDL_MetalView;
  * \param window the window.
  * \returns handle NSView or UIView.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_Metal_DestroyView
@@ -80,6 +82,8 @@ extern SDL_DECLSPEC SDL_MetalView SDLCALL SDL_Metal_CreateView(SDL_Window *windo
  *
  * \param view the SDL_MetalView object.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_Metal_CreateView
@@ -92,6 +96,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_Metal_DestroyView(SDL_MetalView view);
  * \param view the SDL_MetalView object.
  * \returns a pointer.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC void * SDLCALL SDL_Metal_GetLayer(SDL_MetalView view);

include/SDL3/SDL_misc.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -65,6 +65,8 @@ extern "C" {
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_OpenURL(const char *url);

include/SDL3/SDL_mouse.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_mutex.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -308,6 +308,8 @@ typedef struct SDL_Mutex SDL_Mutex;
  * \returns the initialized and unlocked mutex or NULL on failure; call
  *          SDL_GetError() for more information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_DestroyMutex
@@ -334,6 +336,8 @@ extern SDL_DECLSPEC SDL_Mutex * SDLCALL SDL_CreateMutex(void);
  *
  * \param mutex the mutex to lock.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_TryLockMutex
@@ -355,6 +359,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_LockMutex(SDL_Mutex *mutex) SDL_ACQUIRE(mut
  * \param mutex the mutex to try to lock.
  * \returns true on success, false if the mutex would block.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_LockMutex
@@ -374,6 +380,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_TryLockMutex(SDL_Mutex *mutex) SDL_TRY_ACQU
  *
  * \param mutex the mutex to unlock.
  *
+ * \threadsafety This call must be paired with a previous locking call on the same thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_LockMutex
@@ -392,6 +400,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_UnlockMutex(SDL_Mutex *mutex) SDL_RELEASE(m
  *
  * \param mutex the mutex to destroy.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_CreateMutex
@@ -457,6 +467,8 @@ typedef struct SDL_RWLock SDL_RWLock;
  * \returns the initialized and unlocked read/write lock or NULL on failure;
  *          call SDL_GetError() for more information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_DestroyRWLock
@@ -497,6 +509,8 @@ extern SDL_DECLSPEC SDL_RWLock * SDLCALL SDL_CreateRWLock(void);
  *
  * \param rwlock the read/write lock to lock.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_LockRWLockForWriting
@@ -528,6 +542,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_LockRWLockForReading(SDL_RWLock *rwlock) SD
  *
  * \param rwlock the read/write lock to lock.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_LockRWLockForReading
@@ -553,6 +569,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_LockRWLockForWriting(SDL_RWLock *rwlock) SD
  * \param rwlock the rwlock to try to lock.
  * \returns true on success, false if the lock would block.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_LockRWLockForReading
@@ -583,6 +601,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_TryLockRWLockForReading(SDL_RWLock *rwlock)
  * \param rwlock the rwlock to try to lock.
  * \returns true on success, false if the lock would block.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_LockRWLockForWriting
@@ -607,6 +627,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_TryLockRWLockForWriting(SDL_RWLock *rwlock)
  *
  * \param rwlock the rwlock to unlock.
  *
+ * \threadsafety This call must be paired with a previous locking call on the same thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_LockRWLockForReading
@@ -627,6 +649,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_UnlockRWLock(SDL_RWLock *rwlock) SDL_RELEAS
  *
  * \param rwlock the rwlock to destroy.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_CreateRWLock
@@ -670,6 +694,8 @@ typedef struct SDL_Semaphore SDL_Semaphore;
  * \returns a new semaphore or NULL on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_DestroySemaphore
@@ -689,6 +715,8 @@ extern SDL_DECLSPEC SDL_Semaphore * SDLCALL SDL_CreateSemaphore(Uint32 initial_v
  *
  * \param sem the semaphore to destroy.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_CreateSemaphore
@@ -707,6 +735,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_DestroySemaphore(SDL_Semaphore *sem);
  *
  * \param sem the semaphore wait on.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_SignalSemaphore
@@ -726,6 +756,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_WaitSemaphore(SDL_Semaphore *sem);
  * \param sem the semaphore to wait on.
  * \returns true if the wait succeeds, false if the wait would block.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_SignalSemaphore
@@ -746,6 +778,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_TryWaitSemaphore(SDL_Semaphore *sem);
  *                  indefinitely.
  * \returns true if the wait succeeds or false if the wait times out.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_SignalSemaphore
@@ -759,6 +793,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_WaitSemaphoreTimeout(SDL_Semaphore *sem, Si
  *
  * \param sem the semaphore to increment.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_TryWaitSemaphore
@@ -773,6 +809,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_SignalSemaphore(SDL_Semaphore *sem);
  * \param sem the semaphore to query.
  * \returns the current value of the semaphore.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC Uint32 SDLCALL SDL_GetSemaphoreValue(SDL_Semaphore *sem);
@@ -806,6 +844,8 @@ typedef struct SDL_Condition SDL_Condition;
  * \returns a new condition variable or NULL on failure; call SDL_GetError()
  *          for more information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_BroadcastCondition
@@ -821,6 +861,8 @@ extern SDL_DECLSPEC SDL_Condition * SDLCALL SDL_CreateCondition(void);
  *
  * \param cond the condition variable to destroy.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_CreateCondition

include/SDL3/SDL_oldnames.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_opengl.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_opengles.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_opengles2.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_pen.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_pixels.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_platform.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -51,6 +51,8 @@ extern "C" {
  * \returns the name of the platform. If the correct platform name is not
  *          available, returns a string beginning with the text "Unknown".
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC const char * SDLCALL SDL_GetPlatform(void);

include/SDL3/SDL_platform_defines.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_power.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -93,6 +93,8 @@ typedef enum SDL_PowerState
  * \returns the current battery state or `SDL_POWERSTATE_ERROR` on failure;
  *          call SDL_GetError() for more information.
  *
+ * \threadsafety This function is not thread safe.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC SDL_PowerState SDLCALL SDL_GetPowerInfo(int *seconds, int *percent);

include/SDL3/SDL_process.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_properties.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -111,6 +111,8 @@ typedef enum SDL_PropertyType
  * \returns a valid property ID on success or 0 on failure; call
  *          SDL_GetError() for more information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC SDL_PropertiesID SDLCALL SDL_GetGlobalProperties(void);

include/SDL3/SDL_rect.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -237,6 +237,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_HasRectIntersection(const SDL_Rect *A, cons
  *               rectangles `A` and `B`.
  * \returns true if there is an intersection, false otherwise.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_HasRectIntersection
@@ -253,6 +255,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_GetRectIntersection(const SDL_Rect *A, cons
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_GetRectUnion(const SDL_Rect *A, const SDL_Rect *B, SDL_Rect *result);
@@ -272,6 +276,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_GetRectUnion(const SDL_Rect *A, const SDL_R
  * \returns true if any points were enclosed or false if all the points were
  *          outside of the clipping rectangle.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_GetRectEnclosingPoints(const SDL_Point *points, int count, const SDL_Rect *clip, SDL_Rect *result);
@@ -292,6 +298,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_GetRectEnclosingPoints(const SDL_Point *poi
  * \param Y2 a pointer to the ending Y-coordinate of the line.
  * \returns true if there is an intersection, false otherwise.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_GetRectAndLineIntersection(const SDL_Rect *rect, int *X1, int *Y1, int *X2, int *Y2);
@@ -423,6 +431,8 @@ SDL_FORCE_INLINE bool SDL_RectsEqualFloat(const SDL_FRect *a, const SDL_FRect *b
  * \param B an SDL_FRect structure representing the second rectangle.
  * \returns true if there is an intersection, false otherwise.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_GetRectIntersection
@@ -440,6 +450,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_HasRectIntersectionFloat(const SDL_FRect *A
  *               rectangles `A` and `B`.
  * \returns true if there is an intersection, false otherwise.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_HasRectIntersectionFloat
@@ -456,6 +468,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_GetRectIntersectionFloat(const SDL_FRect *A
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_GetRectUnionFloat(const SDL_FRect *A, const SDL_FRect *B, SDL_FRect *result);
@@ -476,6 +490,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_GetRectUnionFloat(const SDL_FRect *A, const
  * \returns true if any points were enclosed or false if all the points were
  *          outside of the clipping rectangle.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_GetRectEnclosingPointsFloat(const SDL_FPoint *points, int count, const SDL_FRect *clip, SDL_FRect *result);
@@ -497,6 +513,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_GetRectEnclosingPointsFloat(const SDL_FPoin
  * \param Y2 a pointer to the ending Y-coordinate of the line.
  * \returns true if there is an intersection, false otherwise.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_GetRectAndLineIntersectionFloat(const SDL_FRect *rect, float *X1, float *Y1, float *X2, float *Y2);

include/SDL3/SDL_render.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -2509,6 +2509,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_RenderGeometryRaw(SDL_Renderer *renderer,
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.4.0.
  *
  * \sa SDL_RenderGeometry
@@ -2530,6 +2532,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_SetRenderTextureAddressMode(SDL_Renderer *r
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.4.0.
  *
  * \sa SDL_SetRenderTextureAddressMode
@@ -2963,7 +2967,7 @@ typedef struct SDL_GPURenderState SDL_GPURenderState;
  * \sa SDL_SetGPURenderState
  * \sa SDL_DestroyGPURenderState
  */
-extern SDL_DECLSPEC SDL_GPURenderState * SDLCALL SDL_CreateGPURenderState(SDL_Renderer *renderer, SDL_GPURenderStateCreateInfo *createinfo);
+extern SDL_DECLSPEC SDL_GPURenderState * SDLCALL SDL_CreateGPURenderState(SDL_Renderer *renderer, const SDL_GPURenderStateCreateInfo *createinfo);
 
 /**
  * Set fragment shader uniform variables in a custom GPU render state.

include/SDL3/SDL_revision.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_scancode.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_sensor.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_stdinc.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -254,12 +254,6 @@ void *alloca(size_t);
 /**
  * Macro useful for building other macros with strings in them.
  *
- * For example:
- *
- * ```c
- * #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")`
- * ```
- *
  * \param arg the text to turn into a string literal.
  *
  * \since This macro is available since SDL 3.2.0.
@@ -5821,6 +5815,8 @@ typedef struct SDL_iconv_data_t *SDL_iconv_t;
  * \returns a handle that must be freed with SDL_iconv_close, or
  *          SDL_ICONV_ERROR on failure.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_iconv
@@ -5836,6 +5832,8 @@ extern SDL_DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
  * \param cd The character set conversion handle.
  * \returns 0 on success, or -1 on failure.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_iconv
@@ -5874,6 +5872,8 @@ extern SDL_DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
  * \param outbytesleft The number of bytes in the output buffer.
  * \returns the number of conversions on success, or a negative error code.
  *
+ * \threadsafety Do not use the same SDL_iconv_t from two threads at once.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_iconv_open
@@ -5909,6 +5909,8 @@ extern SDL_DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
  * \param inbytesleft the size of the input string _in bytes_.
  * \returns a new string, converted to the new encoding, or NULL on error.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_iconv_open
@@ -5932,6 +5934,8 @@ extern SDL_DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode,
  * \param S the string to convert.
  * \returns a new string, converted to the new encoding, or NULL on error.
  *
+ * \threadsafety It is safe to call this macro from any thread.
+ *
  * \since This macro is available since SDL 3.2.0.
  */
 #define SDL_iconv_utf8_locale(S)    SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
@@ -5946,6 +5950,8 @@ extern SDL_DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode,
  * \param S the string to convert.
  * \returns a new string, converted to the new encoding, or NULL on error.
  *
+ * \threadsafety It is safe to call this macro from any thread.
+ *
  * \since This macro is available since SDL 3.2.0.
  */
 #define SDL_iconv_utf8_ucs2(S)      SDL_reinterpret_cast(Uint16 *, SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1))
@@ -5960,6 +5966,8 @@ extern SDL_DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode,
  * \param S the string to convert.
  * \returns a new string, converted to the new encoding, or NULL on error.
  *
+ * \threadsafety It is safe to call this macro from any thread.
+ *
  * \since This macro is available since SDL 3.2.0.
  */
 #define SDL_iconv_utf8_ucs4(S)      SDL_reinterpret_cast(Uint32 *, SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1))
@@ -5974,6 +5982,8 @@ extern SDL_DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode,
  * \param S the string to convert.
  * \returns a new string, converted to the new encoding, or NULL on error.
  *
+ * \threadsafety It is safe to call this macro from any thread.
+ *
  * \since This macro is available since SDL 3.2.0.
  */
 #define SDL_iconv_wchar_utf8(S)     SDL_iconv_string("UTF-8", "WCHAR_T", SDL_reinterpret_cast(const char *, S), (SDL_wcslen(S)+1)*sizeof(wchar_t))

include/SDL3/SDL_storage.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_surface.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_system.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -86,6 +86,8 @@ typedef bool (SDLCALL *SDL_WindowsMessageHook)(void *userdata, MSG *msg);
  * \param callback the SDL_WindowsMessageHook function to call.
  * \param userdata a pointer to pass to every iteration of `callback`.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_WindowsMessageHook
@@ -169,6 +171,8 @@ typedef bool (SDLCALL *SDL_X11EventHook)(void *userdata, XEvent *xevent);
  * \param callback the SDL_X11EventHook function to call.
  * \param userdata a pointer to pass to every iteration of `callback`.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC void SDLCALL SDL_SetX11EventHook(SDL_X11EventHook callback, void *userdata);
@@ -186,6 +190,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_SetX11EventHook(SDL_X11EventHook callback,
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_SetLinuxThreadPriority(Sint64 threadID, int priority);
@@ -202,6 +208,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_SetLinuxThreadPriority(Sint64 threadID, int
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_SetLinuxThreadPriorityAndPolicy(Sint64 threadID, int sdlPriority, int schedPolicy);
@@ -264,6 +272,8 @@ typedef void (SDLCALL *SDL_iOSAnimationCallback)(void *userdata);
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_SetiOSEventPump
@@ -277,6 +287,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_SetiOSAnimationCallback(SDL_Window *window,
  *
  * \param enabled true to enable the event pump, false to disable it.
  *
+ * \threadsafety This function should only be called on the main thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_SetiOSAnimationCallback
@@ -370,6 +382,8 @@ extern SDL_DECLSPEC void * SDLCALL SDL_GetAndroidActivity(void);
  *
  * \returns the Android API level.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC int SDLCALL SDL_GetAndroidSDKVersion(void);
@@ -379,6 +393,8 @@ extern SDL_DECLSPEC int SDLCALL SDL_GetAndroidSDKVersion(void);
  *
  * \returns true if this is a Chromebook, false otherwise.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_IsChromebook(void);
@@ -388,6 +404,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_IsChromebook(void);
  *
  * \returns true if this is a DeX docking station, false otherwise.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_IsDeXMode(void);
@@ -605,6 +623,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_SendAndroidMessage(Uint32 command, int para
  *
  * \returns true if the device is a tablet, false otherwise.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_IsTablet(void);
@@ -616,6 +636,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_IsTablet(void);
  *
  * \returns true if the device is a TV, false otherwise.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_IsTV(void);

include/SDL3/SDL_test.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_test_assert.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_test_common.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_test_compare.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_test_crc32.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_test_font.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_test_fuzzer.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_test_harness.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_test_log.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_test_md5.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_test_memory.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

include/SDL3/SDL_thread.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -208,6 +208,8 @@ typedef int (SDLCALL *SDL_ThreadFunction) (void *data);
  *          new thread could not be created; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_CreateThreadWithProperties
@@ -274,6 +276,8 @@ extern SDL_DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(SDL_ThreadFunction fn,
  *          new thread could not be created; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_CreateThread
@@ -329,6 +333,8 @@ extern SDL_DECLSPEC SDL_Thread * SDLCALL SDL_CreateThreadWithProperties(SDL_Prop
  *          new thread could not be created; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC SDL_Thread * SDLCALL SDL_CreateThreadRuntime(SDL_ThreadFunction fn, const char *name, void *data, SDL_FunctionPointer pfnBeginThread, SDL_FunctionPointer pfnEndThread);
@@ -343,6 +349,8 @@ extern SDL_DECLSPEC SDL_Thread * SDLCALL SDL_CreateThreadRuntime(SDL_ThreadFunct
  *          new thread could not be created; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC SDL_Thread * SDLCALL SDL_CreateThreadWithPropertiesRuntime(SDL_PropertiesID props, SDL_FunctionPointer pfnBeginThread, SDL_FunctionPointer pfnEndThread);
@@ -363,6 +371,8 @@ extern SDL_DECLSPEC SDL_Thread * SDLCALL SDL_CreateThreadWithPropertiesRuntime(S
  * \returns a pointer to a UTF-8 string that names the specified thread, or
  *          NULL if it doesn't have a name.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC const char * SDLCALL SDL_GetThreadName(SDL_Thread *thread);
@@ -379,6 +389,8 @@ extern SDL_DECLSPEC const char * SDLCALL SDL_GetThreadName(SDL_Thread *thread);
  *
  * \returns the ID of the current thread.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_GetThreadID
@@ -396,6 +408,8 @@ extern SDL_DECLSPEC SDL_ThreadID SDLCALL SDL_GetCurrentThreadID(void);
  * \returns the ID of the specified thread, or the ID of the current thread if
  *          `thread` is NULL.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_GetCurrentThreadID
@@ -413,6 +427,8 @@ extern SDL_DECLSPEC SDL_ThreadID SDLCALL SDL_GetThreadID(SDL_Thread *thread);
  * \returns true on success or false on failure; call SDL_GetError() for more
  *          information.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_SetCurrentThreadPriority(SDL_ThreadPriority priority);
@@ -445,6 +461,9 @@ extern SDL_DECLSPEC bool SDLCALL SDL_SetCurrentThreadPriority(SDL_ThreadPriority
  *               function by its 'return', or -1 if the thread has been
  *               detached or isn't valid, may be NULL.
  *
+ * \threadsafety It is safe to call this function from any thread, but only
+ *               a single thread can wait any specific thread to finish.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_CreateThread
@@ -459,6 +478,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_WaitThread(SDL_Thread *thread, int *status)
  * \returns the current state of a thread, or SDL_THREAD_UNKNOWN if the thread
  *          isn't valid.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \since This function is available since SDL 3.2.0.
  *
  * \sa SDL_ThreadState
@@ -491,6 +512,8 @@ extern SDL_DECLSPEC SDL_ThreadState SDLCALL SDL_GetThreadState(SDL_Thread *threa
  *
  * It is safe to pass NULL to this function; it is a no-op.
  *
+ * \threadsafety It is safe to call this function from any thread.
+ *
  * \param thread the SDL_Thread pointer that was returned from the
  *               SDL_CreateThread() call that started this thread.
  *