Save Import and Conversion Feature

1. Added:

1.1 Professional Russian voice-over for Act IV quests
1.2 Korean (KO) localization for Act IV quests
1.3 Ability to load a save from the menu after completing the current playthrough
1.4 Conversion of saves created before update 4.0.0 to ensure the correct ending cutscenes play
1.5 Option to skip the Act intro animation

2. Updated:

2.1 Quest balance and localization
2.2 Several loading screens