Updated WhatsNew.txt for 2.0.6

WhatsNew.txt

@@ -1,6 +1,58 @@
 
 This is a list of major changes in SDL's version history.
 
+---------------------------------------------------------------------------
+2.0.6:
+---------------------------------------------------------------------------
+
+General:
+* Added cross-platform Vulkan graphics support in SDL_vulkan.h
+	SDL_Vulkan_LoadLibrary()
+	SDL_Vulkan_GetVkGetInstanceProcAddr()
+	SDL_Vulkan_GetInstanceExtensions()
+	SDL_Vulkan_CreateSurface()
+	SDL_Vulkan_GetDrawableSize()
+	SDL_Vulkan_UnloadLibrary()
+  This is all the platform-specific code you need to bring up Vulkan on all SDL platforms. You can look at an example in test/testvulkan.c
+* Added SDL_ComposeCustomBlendMode() to create custom blend modes for 2D rendering
+* Added SDL_HasNEON() which returns whether the CPU has NEON instruction support
+* Added support for inverted axes and separate axis directions in game controller mappings
+* Added functions to return information about a joystick before it's opened:
+	SDL_JoystickGetDeviceVendor()
+	SDL_JoystickGetDeviceProduct()
+	SDL_JoystickGetDeviceProductVersion()
+	SDL_JoystickGetDeviceType()
+	SDL_JoystickGetDeviceInstanceID()
+* Added functions to return information about an open joystick:
+	SDL_JoystickGetVendor()
+	SDL_JoystickGetProduct()
+	SDL_JoystickGetProductVersion()
+	SDL_JoystickGetType()
+	SDL_JoystickGetAxisInitialState()
+* Added functions to return information about an open game controller:
+	SDL_GameControllerGetVendor()
+	SDL_GameControllerGetProduct()
+	SDL_GameControllerGetProductVersion()
+* Added SDL_GameControllerNumMappings() and SDL_GameControllerMappingForIndex() to be able to enumerate the built-in game controller mappings
+* Added SDL_LoadFile() and SDL_LoadFile_RW() to load a file into memory
+* Added SDL_DuplicateSurface() to make a copy of a surface
+* Implemented non-power-of-two audio resampling, optionally using libsamplerate to perform the resampling
+* Added the hint SDL_HINT_AUDIO_RESAMPLING_MODE to control the quality of resampling
+* Added the hint SDL_HINT_RENDER_LOGICAL_SIZE_MODE to control the scaling policy for SDL_RenderSetLogicalSize():
+	"0" or "letterbox" - Uses letterbox/sidebars to fit the entire rendering on screen (the default)
+	"1" or "overscan"  - Will zoom the rendering so it fills the entire screen, allowing edges to be drawn offscreen
+* Added the hints SDL_HINT_MOUSE_NORMAL_SPEED_SCALE and SDL_HINT_MOUSE_RELATIVE_SPEED_SCALE to scale the mouse speed when being read from raw mouse input
+* Added the hint SDL_HINT_TOUCH_MOUSE_EVENTS to control whether SDL will synthesize mouse events from touch events
+
+Windows:
+* Added hints SDL_HINT_WINDOWS_INTRESOURCE_ICON and SDL_HINT_WINDOWS_INTRESOURCE_ICON_SMALL to specify a custom icon resource ID for SDL windows
+* The hint SDL_HINT_WINDOWS_DISABLE_THREAD_NAMING is now on by default for compatbility with .NET languages and various Windows debuggers
+* Updated the GUID format for game controller mappings, older mappings will be cautomatically converted on load
+
+Linux:
+* Added an experimental KMS/DRM video driver for embedded development
+
+
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 2.0.5:
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