Migration notes: godot-ability-system
Incremental upgrade for topics this skill covers. Apply one hop, stabilize/test, then next. Never skip hops.
If the project is < 4.0, follow godot-version-migration era bridges (legacy → 3→4) until 4.0, then these hops. Official 3→4: Upgrading from Godot 3 to Godot 4.
4.0 → 4.1
Official: Upgrading to Godot 4.1
No skill-relevant breaking changes for this hop.
4.1 → 4.2
Official: Upgrading to Godot 4.2
No skill-relevant breaking changes for this hop.
4.2 → 4.3
Official: Upgrading to Godot 4.3
- Scripted Object / typed Array binary serialization changes — verify Resource round-trips.
- Large PackedByteArray storage format may not open in older editors.
4.3 → 4.4
Official: Upgrading to Godot 4.4
@export_fileInspector assignments becomeuid://— scripts expectingres://strings must resolve UIDs or use@export_file_path(4.5+).@export_file→uid://in Inspector-assigned values.Curveclamps to configured min/max.
4.4 → 4.5
Official: Upgrading to Godot 4.5
- Resource deep-duplicate and UID export-file changes affect inventory/quest/economy Resource graphs.
Resource.duplicate(true)no longer deep-copies external resources by default.
4.5 → 4.6
Official: Upgrading to Godot 4.6
- First save in 4.6 rewrites scenes with unique node IDs.
4.6 → 4.7
Official: Upgrading to Godot 4.7
- Re-validate Resource pipelines after packed-array setter and typed-return GDScript changes.
- Packed array element assignment no longer triggers whole-property setter.
- Typed-return overrides require an explicit return statement.