Ren'Py save-game restoration and state verification

Ren'Py manages player progress through .save files and a persistent data file, both of which rely on Python's pickle module for serialization. When performing manual backups or migrating save data between different game builds, there is no built-in engine utility to validate the integrity of the restored files before they are loaded into the game state.

Because save files are sensitive to the version of the Ren'Py engine and the specific game script structure, a file successfully copied into the saves/ directory may still lead to inconsistent game states or loading failures if the underlying script has changed.

• How can a developer programmatically verify that a manually restored save file is compatible with the current script version before the user attempts to load it?
• Is there a method to ensure that restored persistent data remains synchronized with the corresponding .save files to prevent state corruption?