DAI Engine 4.2

Changelog — 4.1 → 4.2

Full Experience Takeover Improvements

• Fixed early boot presentation loading for MAIN Experience datapacks that own the DAI application shell.
• Full-takeover Experiences can now provide their custom title screens, scenes, actions, and presentation definitions before a gameplay world becomes active.
• Fixed cases where a shell takeover definition was detected but the Experience screen or scene was not yet available, causing DAI to fall back to the default DAI Universe title.
• Improved early loading ownership so custom Experience loading presentation can be used during boot and world transitions.
• Shell-owning Experience presentation and companion resource context are now resolved earlier in the startup lifecycle.

Return to DAI Universe

• Added the generic JSON action:

  return_to_dai_universe

• Full-takeover Experiences can now deliberately release/suspend their shell ownership and return the player to the built-in DAI Universe.

• Replaced unreliable kick, close_screen, or command-based world-exit workarounds with a proper client/world transition.

• Returning to DAI Universe now performs a real integrated-server or multiplayer disconnect.

• Experience-owned presentation/resource context is cleared through the normal unload lifecycle.

• A suspended Experience regains its full shell takeover when the player explicitly launches that Experience again.

• Connection-lost return handling now uses the same reliable DAI Universe transition path.

Return to Experience Title

• Added the generic JSON action:

  return_to_experience_title

• Allows gameplay menus to leave the active world while preserving the current full-takeover Experience shell.

• The active world is saved/disconnected cleanly.

• The owning Experience remains selected as the application shell.

• DAI resolves back to that Experience's custom title screen after the world closes.

• Separates "Return to Title Screen" from "Return to DAI Universe" as two distinct navigation levels.

Experience Navigation Hierarchy

DAI 4.2 now formally supports:

DAI Universe → Experience Title → Gameplay

with separate return paths:

Gameplay → Return to Experience Title

and:

Experience Title → Return to DAI Universe

This allows complete Experience replacements to behave like standalone games without trapping the player inside the Experience shell.

Creator / JSON API

• Added return_to_dai_universe to the Creator action schema.
• Added return_to_experience_title to the Creator action schema.
• Full Experience navigation can now be authored through datapack JSON instead of server commands or hardcoded menu behavior.

Versioning

• Updated DAI Engine feature level from 4.1 to 4.2.
• Existing DAI 4.1 server-authority, JSON presentation, reaction-event, dedicated-server sync, and shell-takeover functionality remains intact.