This is a stable bugfix release, with the following changes:
- Allow depth texture arrays in the GPU API
- Fixed a crash when copying to the Vulkan swapchain with the GPU API
- Added support for packed 16-bit texture formats in the Metal renderer
- Fixed rare cursor corruption on Windows
- Fixed the text edit cursor position when using the Korean IME on Windows
- Added controller sensor support for GameInput v3
- Added support for gamepad motion sensors on Android
- Release wired controllers back to the OS when the application is in the background on Android
- Fixed Ipega controllers being ignored in keyboard mode
- Added support for GameCube rumble when the adapter is in PC mode and has the latest firmware
- Fixed rumble on the new Steam Controller
- Added support for the GameSir Super Nova in Xbox 360 mode
- Added support for the PDP Afterglow Wave Wireless Controller for Switch
- Fixed several second hang when changing focus on X11 in some situations
- Disable the X Synchronization Extension by default, can be enabled with SDL_HINT_VIDEO_X11_ENABLE_XSYNC_EXT
- Fixed SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH on X11
- Fixed a rare crash on Raspberry Pi when creating a window