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This reference is generated from the Summer Engine compatibility contract at SummerEngine/SummerEngine:compatibility/summer-engine.json, commit b44e47792819fb402a2984cd79c7023cc8aa57f8. The checked-in input is verified against SHA-256 741bd8237868a395cad89bfa1c5a70ef5ca2cfcc829674047cab1b9e180c054a; docs builds do not fetch mutable remote data.

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Product identity

Summer Engine is the product. Creators make a Summer game in GDScript and use the Summer SDK for platform capabilities. The product release is platform-staggered and separate from the upstream technical base.

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Upstream technical base

The upstream base is a compatibility and lineage fact, not the Summer Engine product version. Summer follows upstream continuously; neither the current nor planned upstream number is a permanent Summer identity.

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Runtime and project compatibility

  • Runtime compatibility: Unmeasured; no version is claimed.
  • Minimum project compatibility: Unmeasured; no version is claimed.
  • Recommended project compatibility: Unmeasured; no version is claimed.
Unmeasured values are intentionally null in the source contract. Do not infer a minimum from project.godot, copied prose, or an older setup guide.

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Where upstream terminology belongs

Godot references remain in migration, plugin and GDExtension compatibility, upstream contribution, attribution, and legal contexts. Default creator onboarding installs and uses Summer Engine.

Previous: Naming

Review creator-facing names and stable wire identifiers.

Next: Existing-project migration

Bring an existing Godot project into Summer Engine.