Open Parties and Claims - Essentials

Added

• Configurable names for every command provided by the mod through config/opac_essentials-commands.toml
• Argument-free /claim and /unclaim shortcuts that operate on the chunk in which the player is standing
• In-game claim permission management through /claims permissions
• Separate permission rules for main claims and subclaims
• Permission targets for blocks, block entities, entities, throwable items and projectiles
• Individual actions for interaction, breaking, placing, attacking, item use and projectile impact
• Permission rules for either all players or a specific player
• Registry-aware search and suggestions, including modded content
• Persistent, server-authoritative permission storage and validation
• Command-based permission management as a fallback when the UI is unavailable
• Compatibility layer for both OPAC API v1 and API v2

Changed

• Renamed OPAC - Better Commands to OPAC - Essentials
• Expanded the project from a small collection of fixed command aliases into a configurable OPAC utility and permission addon
• /claim and /unclaim no longer accept coordinates or chunk arguments; they always use the player's current chunk
• /pchat <message> and toggled party chat now use OPAC's native /opm handling and standard party message format
• Raised the supported NeoForge baseline to 21.1.216 and above for Minecraft 1.21.1
• The permission UI and network features now require OPAC - Essentials on both the client and server

Migration Notes

• Releases before 2.0 use the old OPAC - Better Commands name and belong to the legacy generation of the mod
• There is no legacy permission data to migrate because the permission system did not exist before 2.0
• The legacy /party, /claims and /pchat names remain the 2.0 defaults, but server owners can rename them in the new command configuration
• A full server restart is required after changing command names
• Back up the world before updating and test ALPHA builds before deploying them to a production server