Some of the bigger changes are:
- A new model-based renderer. While this is opt-in for the moment, it opens the way to features that creators have been requesting for a long time, such as being able to recolor displayables, blurring the screen, and using Live2D to animate sprites. The model-based renderer is extensible with shaders, allowing for custom effects.
- A new Python 3 compatibility mode has been added, to pave the way for Python 3 support in the next release. This mode changes the ways in which Ren'Py runs, to allow you to begin porting your game before full Python 3 comes out in Ren'Py 8.0.
- Ren'Py's build system has been modernized, and the libraries underlying it have been updated. This allows 64-bit Windows to be supported.
- The web platform has been updated, to allow for the incremental download of games.
With these changes, there have been a few deprecations. Ren'Py no longer runs on Windows XP. The 32-bit armv7l platform has been removed on iOS, as this platform hasn't been supported by Apple for several years. The Editra text editor has been removed, as it hasn't been supported for quite some time, and wasn't compatible with the new build system.
It's my hope that this release will enable creators to take on projects they couldn't before, and will provide a solid basis for the next releases of Ren'Py.
Downloads of 7.4.0 can be found at:
https://www.renpy.org/release/7.4.0
A full list of changes to Ren'Py can be found at:
https://www.renpy.org/doc/html/changelog.html
A list of changes that may require you to update your game can be found at:
https://www.renpy.org/doc/html/incompatible.html
Please also check out the credits and sponsor list.