Better Anti Dupe

[3.4.2] - 2026-07-02

Rename the tag, and optionally send clients nothing at all.

Added

• Rename the ownership tag. New ownership.namespace / ownership.key options change what the tag is called in item data — a leaked screenshot or stream frame then shows something bland like data:o instead of antidupepro:adp_owner, revealing nothing about which plugin wrote it. Renaming is safe: the previous name is remembered automatically (marker file plus ownership.legacy_keys), items tagged under the old name stay fully tracked, and they re-stamp onto the new name as they change hands. The client-side concealment hides old and new names alike during the transition.
• Strict strip mode. strip_all_custom_data: true strips every plugin's custom item data from packets sent to clients, not just AntiDupePro's tag — anything reaching the client is clean. Off by default because CIT resource packs and client mods that read item data (sorting helpers, price or tooltip overlays) will see stripped items as blank. Pair it with strip_whitelist to preserve the namespaces your pack or mods need — AntiDupePro's own namespace is never allowed on the whitelist and is ignored if listed.