This is the full changelog of Open Modular Passive Defense (OMPD) 4.0.0 for Minecraft 1.12.2 (Forge): hardened blocks, walls, fences and the camouflage trap, merged from all of its alpha and beta releases. It requires OMLib; on 1.20.1, 1.21.1 and 1.21.11 its blocks are part of Open Modular Turrets.

The latest pre-release is 4.0.0-beta.6 (2026-10-29), which requires OMLib 4.0.0-beta.6 or newer.

Other changelogs: OMT on 1.12.2, OMT on 1.20.1/1.21.1/1.21.11, OMLib on 1.12.2, OMLib on 1.20.1/1.21.1/1.21.11, Open Modular Lighting 1.0.0.

Added

Camouflage, trust and memory card

  • Camouflage traps have a trusted player list: the owner and trusted players can stand on the trap, its admins open its menus and manage the list (Trusted button in the camouflage menu; levels “trusted” and “admin”)

Mod compatibility

  • The One Probe shows the owner of hardened blocks, walls and fences, and Hwyla shows the owner too (green for unowned blocks) and shows a camouflage trap as its disguise to players who may not manage it
  • Recipe for the camouflage trap (with Open Modular Turrets installed): 4 tier 1 hardened blocks, 4 planks and a tier 1 sensor give 4 traps

Config

  • Hardness and explosion resistance of the hardened blocks, walls and fences and the fence damage are configurable per tier (hardness, explosionResistance, fenceDamage in the tiers section)

Changed

Camouflage and passive defense

  • Hardened blocks can be used as camouflage (other blocks with a tile/block entity still cannot)
  • The camouflage trap blocks light like a solid block by default
  • Fences spare only their owner (and shared owners); trusted players, team members and pets are hurt

Fixed

  • Fences dealt the same damage on every tier; it now grows from 5 (tier 1) to 9 (tier 5)
  • Crash on hardened blocks, walls, fences and camo traps with invalid metadata (damaged chunks, /give)
  • Hardened blocks, walls, fences and camo traps placed by something other than a player (e.g. a deployer) crashed the game
  • Sneak-right-clicking your own block with an empty hand did not always pick it up
  • The creative tab showed its translation key instead of its name
  • The camouflage trap broke instantly; it mines like its disguise now
  • WAILA/HWYLA showed no owner name for hardened blocks, walls and fences

Release history

Version Released
4.0.0-alpha.1 2026-10-23
4.0.0-alpha.2 2026-10-23
4.0.0-beta.1 2026-10-24
4.0.0-beta.2 2026-10-26
4.0.0-beta.3 2026-10-26
4.0.0-beta.4 2026-10-27
4.0.0-beta.5 2026-10-27
4.0.0-beta.6 2026-10-29

The changelogs of the single releases are in the mod’s repository: OpenModularPassiveDefense 1.12.2.