1.10.5+1.20.1

⚠️ Read this before updating

This release is a major technical overhaul and is not backwards compatible.

• The APIs have been reworked, not removed. Everything still exists, under new interfaces — but mods built against Spell Engine 0.9.x will not work with this version. They need updating and rebuilding against the current API.
• Update the whole set together. Spell Engine and every RPG Series mod must be on matching versions. Mixing in an older add-on will break at startup or misbehave in play.
• Spell books must be re-obtained. Spell books from an older world no longer carry valid spell data. Re-craft them, or re-bind their spells at the Spell Binding Table.

Back up your world before updating.

Minecraft 1.20.1 port of Spell Engine 1.10.5 (Fabric + Forge 47). Same content and spell format as 1.10.5; the differences below come from what 1.20.1 itself lacks.

Requires Spell Power 1.6.0+1.20.1. RangedWeaponAPI 2.3.4+1.20.1 and Critical Strike 1.0.4+1.20.1 are optional.

Not available on this game version:

• Entity size scaling (no generic.scale attribute): summon scaling, tint renderers and projectile sizes ignore entity scale
• Jump-lock modifiers on status effects (no jump-strength attribute on living entities); the lock-out is carried by ActionImpairing alone
• Melee reach is a fixed 3 blocks (no entity_interaction_range attribute)
• spell_choice.apply_on_choice (data-component patching); spell_choice carries pool only
• Mace item tags; Better Combat's glowing swing-trail override (the held item still tints)
• Configuration-phase networking: spell registry and config sync happen at join time instead

Integration notes:

• Item data lives in NBT (net.spell_engine.api.item.SpellItemData) instead of data components; attribute modifiers use ItemAttributeModifiers with UUIDs derived from the modern identifiers
• Datapack folders use the 1.20.1 plural names (advancements/, recipes/, loot_tables/, tags/items/); spells stay at data/<namespace>/spell/
• Spell Infinity is a Java enchantment again (config/spell_engine/enchantments.json)
• Forge: MixinExtras is embedded; content mods register from RegisterEvent windows