The team behind FiveM is rebuilding major parts of the platform to support Grand Theft Auto V Enhanced, and it's not just a straight port. They're now using the opportunity to fix things that have needed attention for a while. The biggest technical change is to OneSync, the networking engine that lets FiveM servers run up to 2,048 players simultaneously. Reaching that limit requires an Element Club Platinum subscription; it is not the player allowance for every server.
In its development announcement, Cfx.re says the synchronization overhaul is intended to reduce server bandwidth, CPU and memory use. The team also expects improvements to frame-rate stability and latency, although the benefit will depend on the server and player setup. The team is also addressing persistent synchronization problems, including bullet impact precision and dead body sync between clients, to reduce the need for server-side workarounds.
Going forward, all GTA V Enhanced FiveM servers will run on the high-performance sync mode only. The older, lower-capacity modes are being dropped entirely. On the scripting side, existing scripts written in Lua, JavaScript, or C# will continue to work without modification. 3D assets can be converted for GTA V Enhanced compatibility through a tool called Alchemist, with more details on escrowed asset conversion coming later.
One notable change is that parts of the FiveM codebase that are currently open source will become closed source with this update. The team says this is tied to deeper integration requirements with the base game, though they've kept the explanation fairly vague beyond that. The release is coming "in the coming months" as an early access version, with internal testing already underway.
