The 6.99.6 release:
- Has much better support for high-resolution displays. Retina displays are now supported on Mac OS X and iOS - the latter support was broken by 6.99.5. On all platforms, Ren'Py will try to render text at the display resolution, rather than the game's resolution. This means that text should remain sharp even as the window is scaled up.
- Joystick support has been removed from Ren'Py, and replaced with gamepad support based on SDL2's new controller API. This API maps all sorts of gamepads to an Xbox-style controller, making standard bindings possible in the same way such bindings are possible for a keyboard and mouse.
- Ren'Py now automatically backs up .rpy files when a game changes. These script files are backed up to the system-wide save directory.
Downloads of 6.99.6 can be found at:
http://www.renpy.org/release/6.99.6
A full list of changes to Ren'Py can be found at:
http://www.renpy.org/doc/html/changelog.html
A list of changes that may require you to update your game can be found at:
http://www.renpy.org/doc/html/incompatible.html