Ren'Py 6.13 also adds a DirectX rendering path. This new renderer should lead to faster and more functional text display on Windows system with DirectX support
In addition to these major features, 6.13 adds a style preferences system, new actions - including actions for image galleries and music rooms - and new themes.
Some notes for upgraders:
- The change in interpolation may cause your old scripts to stop working. Please see the incompatible changes documentation for information on how to upgrade your script or enable a compatibility mode.
- The shift+U updater is not capable of upgrading 6.12.2 to this release. Please download 6.13 from the website.
http://www.renpy.org/release/6.13
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