Just Cause 3: Multiplayer Mod - Update 1.0.8
Hey everyone, Update 1.0.8 is now live on Steam. 1.0.7 was the first step in bringing JC3:MP back: getting the client running again on modern systems, updating the UI, and opening the door for active development again. 1.0.8 is the next step. This update brings the server forward with the client, replaces one of the oldest parts of the multiplayer stack, restores server banners, improves the join flow, and lays down a much better foundation for future gameplay work. This is not the update where every long-standing issue disappears overnight. It is the update that makes the next updates much more realistic. The mod should be easier to host, easier to diagnose, and easier for us to keep improving from here. In short: JC3:MP is moving again.
Important
This is a required update for both clients and servers. 1.0.8 clients cannot join 1.0.7 servers, and 1.0.7 clients cannot join 1.0.8 servers. If you host a server, please update your server files before players on the new client try to join.
Highlights
Added the refreshed 1.0.8 server build
Moved multiplayer connections to Steam's modern networking system
Restored server banners in the server browser
Improved server join, timeout, and disconnect handling
Improved package download and cache handling while joining servers
Improved player, vehicle, weapon, object, checkpoint, and world replication
Improved server logs for connection and sync issues
Continued the client and server cleanup needed for future updates
Changelog
Client
Updated the multiplayer connection flow
Improved timeout handling when a server cannot be reached
Improved behavior when a join attempt fails
Improved cleanup when leaving multiplayer
Improved cleanup when disconnecting during loading
Improved connection status handling during package checks
Improved package download status while joining servers
Improved handling of cached packages
Restored server banners in the server browser
Improved server list presentation with banner support
Improved main UI state handling during connect/disconnect flows
Improved input ownership around multiplayer UI screens
Multiplayer Sync
Large parts of this have been entirely rewritten and re-architected, this should bring a much more consistent and correct experience to player and vehicle replication.
Server
Added the updated 1.0.8 server build
Updated server networking to match the new client connection system
Improved player join and leave handling
Improved server-side disconnect cleanup
Improved package transfer reliability
Improved package transfer failure reporting
Restored server banner/advertisement support
Improved entity streaming and visibility handling
Improved world synchronization flow
Improved scripting diagnostics
Improved script warning messages in several cases
Improved logging for connection failures
Improved logging for sync-related issues
Server Owners
Servers must be updated to 1.0.8 for 1.0.8 clients to connect
If players cannot join, first verify that both client and server are on 1.0.8
Server banners are supported again
Package downloads should be less likely to stall
File transfer failures should be easier to identify
Connection problems should leave clearer information in the logs
The new server build should be a better base for future hosting and debugging
Fixes And Polish
Improved join flow reliability
Improved disconnect flow reliability
Improved package cache verification display
Improved handling of failed package transfers
Improved server browser presentation
Improved multiplayer UI state cleanup
Improved scripting warnings for server developers
Looking Ahead
JC3:MP has been carrying a lot of old code for a long time. Some of it made even simple fixes harder than they should be. With 1.0.8, one of the biggest pieces has been replaced, the server is back in the release cycle, and the project is in a much better position for the work still ahead. There is still plenty to do, but this update is a major step toward making JC3:MP easier to maintain, easier to host, and better to play. Thank you to everyone testing builds, hosting servers, reporting bugs, and giving feedback. More is coming.
