2.4.1

Water and lava flow inside your own ward. Every flow into a warded block used to be cancelled, so a bucket of water poured inside your own ward sat there as one still block. Liquid placed by the owner or a member now spreads normally inside the ward. Flow from outside the ward, or from another owner's ward, still stops at the edge.
Pistons work inside your own ward. A piston standing in a ward pushes and pulls blocks within it, and out of it into unclaimed land, so piston doors and farms work for the people who built them. A piston outside the ward, or in another owner's ward, still cannot move, push into or pull from warded blocks.
Dispensers can't pour in from outside. Now that liquid spreads inside a ward, a dispenser outside a ward can no longer place or scoop water, lava, powder snow or a mob bucket on the ward's side. This sits under the existing protection.fluid_flow switch.
Your wards count as one claim. Two wards with the same owner are treated as one claim for liquids and pistons, so a build that spans both behaves as one.
No config, data or command changes. Your wards, members, database and config carry over. Drop the new jar in and restart.
Boot-verified at both ends of the range: Paper 1.21.8 (the compatibility floor) and Paper 26.2 (Java 25), each a clean enable with zero plugin errors.

Wards