This page covers what's changed for server owners and resource developers moving from FiveM Legacy to FiveM for GTAV Enhanced: removed features, breaking changes, new config variables, and behavioral differences. Review the breaking changes before switching, as some require code or config updates.
| Feature | Notes |
|---|---|
| P2P Sync | FiveM for GTAV Enhanced no longer uses P2P synchronization and has instead switched to a client-server model. This change reduces latency. |
| OneSync non-big mode | No longer exists; OneSync big mode is now the only mode. Non-big mode was the legacy OneSync behavior. The difference is player event scoping: in big mode, player connect/disconnect events only arrive when the player is in range, whereas in non-big mode they arrived regardless of location. |
ARQ (onesync_automaticResend) | Previously defaulted to false; now removed entirely |
| Asset Escrow | Not implemented yet |
sv_netHttp2 | HTTP/2 support removed |
| DevCon server ports (29200, 29300) | Removed |
| Server ImGui GUI | Removed |
+set moo 31337 developer command | Was used in Gen8 to enable devmode; removed. Client dev tools now only work when sv_devMode true is set on the server. Dev mode can also be set via the connection deferral handover. |
sv_useAccurateSends | Deprecated (see sv_syncTickRate below) |
-cl2 parameter | Deprecated. Check the running-two-fivem-clients article for more information. |
| Mumble | Deprecated. Check the voice article for more information. |
You can now unregister server commands:
local commandID = RegisterCommand(...)
UnregisterCommand(commandID)
Key-value DB files must be migrated. We will provide a migration script to assist with this process.
Remote commands no longer return the full log to the client. You must now explicitly call:
PrintRemoteCommandLog(message)so that it appears on the client.
Resources can no longer be builders.
DevCon server ports 29200 and 29300 were removed.
Server ImGui GUI was removed.
Mono was replaced by .NET. The only requirement for .NET is a .NET 10 SDK and optionally some IDE. We will share more information on what this means for developers in the future.
Pure mode is now always enabled and can no longer be turned off. While FiveM for GTAV Enhanced is in early access, graphic mods cannot be used.
endpoint_add_tcp and endpoint_add_udp now support only a single endpoint instead of multiple endpoints.
The +set moo 31337 command (used in Gen8 to enable devmode) was removed.
Enabling devmode in the client now requires sv_devMode true to be set on the server side (in the server.cfg).
The following variables exist only for backward compatibility and have no effect:
| Variable | Type | Default | Notes |
|---|---|---|---|
onesync_enableBeyond | bool | false | Does nothing. |
sv_enhancedHostSupport | bool | false | Not used anymore. |
sv_protectServerEntities | bool | false | Not implemented. Use sv_entityLockdown instead. |
sv_resourceFileDownloadTimeoutThe timeout in milliseconds for downloading resource files over HTTP. If the download does not complete within this time, it will be canceled.
| Property | Value |
|---|---|
| Default | 2 minutes |
| Type | std::chrono::milliseconds |
sv_syncTickRateTick rate for the sync thread. Higher values can reduce latency but increase CPU usage.
| Property | Value |
|---|---|
| Default | 60 |
| Range | 1-120 |
Note:
sv_useAccurateSendsis deprecated. Specify the sync tick rate explicitly withset sv_syncTickRate [1, 120].
full, disables dummy object creation.
For more information on lockdown modes, see Entity lockdown and the SetRoutingBucketEntityLockdownMode native.
FiveM for GTAV Enhanced currently supports only the latest gamebuild (The Kortz Center Heist).
This gamebuild is loaded by default if no other gamebuild is specified.
If you wish to load the base game without any DLCs you can do so by setting sv_enforceGameBuild 1 in the server.cfg.
For more information on gamebuilds, see Gamebuilds.
In FiveM for GTAV Enhanced, some server files are named differently. The server.7z / fx.tar.xz archive is named cfx-server_win_x64 / cfx-server-linux_x64, and the FXServer.exe executable is named cfx-server.exe.