AntiDupePro-3.4.0

[3.4.0] - 2026-06-30

Hide the tag, sharpen the witnesses, and split the keys.

Added

• Hide the ownership tag from players. New hide_tag_from_clients option
  (on by default). AntiDupePro strips its own tag from items in the
  packets sent to players, so anyone poking at item NBT with a client mod just
  sees nothing — they can't tell a tracked item from an untracked one, and the
  old "swap an item between two accounts to see the tag flip" trick stops
  working. The tag is untouched server-side, so detection is exactly as before.
  Only AntiDupePro's own data is hidden; other plugins' data and resource-pack
  item models are left alone.
• antidupe.witness.exempt permission. Anyone with this node is never
  counted as a nearby witness — handy for staff who patrol invisibly and
  shouldn't accidentally vouch for a player's actions.

Changed

• Vanished staff no longer count as witnesses. Proof of Witness now ignores
  vanished players (via the standard vanished flag that EssentialsX,
  SuperVanish and PremiumVanish all set). Previously an invisible admin standing
  nearby could quietly raise a duper's trust and hide the solo-farming pattern.
• Alerts and ledger commands are now separate permissions. Give a moderator
  antidupe.alerts to receive dupe alerts without command access, or
  antidupe.ledger for the /adp ledger commands. antidupe.admin still grants
  both, so existing setups are unchanged.

Downloads

• Two builds. AntiDupePro-3.4.0.jar is for Minecraft 1.21.x (Java 21);
  AntiDupePro-3.4.0-mc26.jar is for 26.x (Java 25). Grab the one that matches
  your server — 1.21.x servers can't load the 26.x build.