This is a stable bugfix release, with the following changes:
- Fixed an assert on Windows in SDL_SetWindowOpacity()
- Improved support for external surfaces under Wayland
- Fixed visual artifacts when switching render targets with the Vulkan renderer
- Fixed crash rendering YUV textures on NVIDIA drivers with the Vulkan renderer
- Added SDL_HINT_ENABLE_STEAM_SCREEN_KEYBOARD to customize behavior on Steam Deck and Steam Machine
- Improved support for gamepads under Emscripten
- Added hotplug detection support when using libusb for HIDAPI controllers
- Fixed flipped Xbox 360 controller axes on macOS
- Fixed truncated long text input sequences when using sdl2-compat