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Keep companion data when upgrading old worlds on Forge 26.2 - #543
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SkyBlade1978
merged commit Nov 12, 2026
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MinecraftModDevelopmentMods:master-26.2
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This brings the shared companion migration hook to Forge 26.2. It preserves
companion block metadata, inventories and the embedded host player before
Minecraft flattens an old world. Current player files remain authoritative,
and chunk-return hooks no longer cancel companion callbacks.
The version is 3.1.2.2602001. The standalone build still uses the published
OreSpawn 4.1.0.2602001 dependency and the existing supported runtime range.
Checked locally: 135 unit tests, 29 Python tests, 8 Node tests, full release
audits, both IDE configurations and an offline clean rebuild. All three release
jars are unchanged from the tested candidate. Combined Advantage upgrade,
load-order and endurance checks passed, and manual gameplay was accepted.
All 46 GameTests and the packaged client/server smokes also passed with the
standalone OreSpawn dependency.
Player jar SHA-256:
15CBD0C8DD95BBA846969929B8767887BA4B8152DFB10C9C58FB314AD39FB9E1.Publication follows the OreSpawn 4.1.1.2602001 release.