# GriefPrevention3D v18.3.13
**Wiki:** https://github.com/castledking/GriefPrevention3D/wiki
## Overview
- `/extendclaim` on a 3D subdivision inside a shaped claim resized the **shaped claim** instead of
the subdivision.
- **Security:** players without edit permission could resize someone else's shaped claim with
`/extendclaim`.
- Shaped subdivisions no longer hit the "claim too narrow" / "insufficient area" minimums.
## `/extendclaim` extended the wrong claim
When no claim was selected with the golden shovel, `/extendclaim` (and `/claim expand`) replaced the
claim the player was standing in with its **parent**. Standing inside a 3D subdivision of a shaped
claim therefore targeted the shaped claim, which grows whichever boundary segment the player faces.
That edge could be far away, so the command looked like it just flashed and refreshed the
visualization without extending anything — while quietly growing the parent claim.
Fix:
- `/extendclaim` now extends the most specific claim you're standing in — including 2D, 3D, and
shaped subdivisions — matching upstream GriefPrevention. A claim selected with the golden shovel
still takes priority.
- Extending a 3D subdivision vertically checked against the parent's raw stored Y values. Shaped
claims store only their floor, so a 3D subdivision inside one could never grow upward. The check
now uses the parent's real vertical range (the world height limit for 2D parents).
- Shaped subdivisions use the shaped segment expansion (the same as shaped claims) instead of the
rectangle resize, which would have changed their stored bounds without moving their outline.
Behavior note: standing inside a rectangular subdivision, `/extendclaim` now grows that subdivision,
not the claim around it. To grow the whole claim, stand outside the subdivision or select the
claim's corner with the golden shovel first.
## Security: shaped claims could be resized without permission
The shaped-claim branch of `/extendclaim` ran **before** the edit-permission check, so any player
holding the claim modification tool could expand (or shrink, with a negative amount) another
player's shaped claim just by standing in it. The permission check now runs first for every claim
type.
## Shaped subdivisions can be as small as you like
Shaped subdivisions carve up land the owner already paid for, so they now skip the claim size
minimums (`MinimumWidth` / `MinimumArea` for rectangular outlines, `ShapedMinimumArea` for other
outlines) both when created with `/shapedsubdivideclaims` and when reshaped or extended. Top-level
claims are unaffected.
The smallest shaped subdivision is 2×2: a shaped outline can't be one block wide, because that would
need a zero-length edge. Use a regular `/subdivideclaims` subdivision for 1×1 spaces.
## Upgrade notes
No configuration or storage changes. Drop-in replacement for v18.3.12.
Optional dependencies
QuickShop-Hikari
Any compatible version
PlaceholderAPI
Any compatible version
VaultUnlocked
Any compatible version
Developer information
Projects on Modrinth are automatically available through a Maven repository for use with JVM build tools such as Gradle.
maven { name = "Modrinth"; url = "https://api.modrinth.com/maven" }
