Changelog

All notable user-facing changes are documented in this file.

[0.1.3] - 2026-07-07

Improved player synchronization on boats by stabilizing local positions and adding a fallback mechanism for boat detection.
Introduced a new PatchHealth reporting system to monitor the success of various synchronization patches across different game systems (Save, Shop, Shipyard, Sleep).
Added comprehensive item synchronization patches to ensure consistent item interactions (pickup, drop, eat, nail, etc.) across clients and hosts.
Implemented a protocol smoke test to validate message types and ensure proper serialization/deserialization of network messages.

Added the F8 Sailwind Co-op menu for hosting, joining, disconnecting, avatar selection, diagnostics, and debug tools.
Added a high-contrast dark menu backdrop/window background for readability in bright scenes and the main menu.

Replaced separate F6/F7/F8/F9/F10/F11 co-op hotkeys with menu-driven controls.
Moved the debug panel to the left side of the screen so it does not overlap the co-op menu.
The co-op menu captures cursor input while open and closes companion Avatar/Debug panels when closed.

Added host save streaming for joining clients: the host sends the current world save in reliable chunks, and the client loads it into a dedicated co-op slot.
Added a separate client co-op profile for persistent character progress across sessions: currency, reputation, needs, known prices, missions, journal data, and personal belt inventory.
Added join-pause handling while the host save is being transferred and loaded by the client.
Added wave state synchronization so client sea surface and host-authoritative boat position stay aligned.
Added fishing rod cast visual sync, including bobber position, line length, and rod bend.
Added client support for throwing, placing, hanging, loading/unloading, and inventory movement of synced items.
Added debug tools for island teleport and expanded coordinate diagnostics in the overlay.

Expanded item synchronization to cover more runtime state: attached/placed items, crates, cargo, inventory slots, sold goods, market-spawned goods, rod hooks, and lamp hooks.
Improved economy, mission, and journal synchronization, including richer mission reward data and client-side trade flow handling.
Updated the wire protocol from 39 to 47 and added message types SaveSnapshotBegin, SaveSnapshotChunk, SaveSnapshotEnd, ClientWorldLoaded, and RodState.
Updated documentation and project status notes for the new save/profile, item, economy, and debug workflows.

Fixed client purchase of trade goods in port.
Fixed host interaction lockouts after a client unloaded items from cargo.
Fixed client-side unloading behavior.
Fixed moving items while the boat is underway.
Fixed client cross-session inventory handling.
Fixed client fastener/attachment handling.
Fixed grill/brazier visuals turning into a white cube after pickup/drop replication.
Fixed several fishing-related synchronization issues.

Client world loading now depends on the host's streamed save and overwrites the configured local co-op slot on the client.
All peers must use the same mod build because the protocol changed after 0.1.0.

Initial public LAN co-op release for Sailwind.
Host/join/disconnect controls and diagnostic overlay.
LAN and VPN/tunneling play support through LiteNetLib UDP.
Host-authoritative boat, environment, controls, anchor, mooring, interaction, and player state synchronization.
Default remote player avatar bundle: avatar.bundle.
Basic avatar customization by replacing the included avatar.bundle with a compatible Unity 2019 Windows x64 AssetBundle.

This is an early release. Save-game progress is owned by the host and is not synced as separate guest progress.
All players should use the same mod version and install SailwindCoop.dll, LiteNetLib.dll, and avatar.bundle together.