MTA:SA error code

MTA:SA error CD39

The server is newer than your client.

How to fix it

1. MANDATORY UPDATE: click Yes

   The window says you must update MTA to join this server. MTA's current code also shows the version the server requires and the version you have now. Click Yes to update now. If you click No, MTA does not update, so you cannot join this server.

   Source: MTA source code, CIT Live KB · gameplay.md

2. OPTIONAL UPDATE: Yes is recommended

   Only if it says OPTIONAL UPDATE.

   The server recommends another MTA version, but says it is not essential. Click Yes to update now, or No to join without the update. When CIT asks on join whether to download an update, CIT's knowledge base says yes, because it includes bug fixes.

   Source: MTA source code, CIT Live KB · gameplay.md

3. MTA:SA ... required: get that version

   Only if the window title is MTA:SA, a version number, then required.

   That server needs the MTA:SA version shown in the title. If MTA asks to download and install it, click Yes. If MTA asks to launch it and connect to this server, click Yes.

   Source: MTA source code, CIT Live KB · gameplay.md

4. DOWNLOAD COMPLETE: click OK

   When MTA shows DOWNLOAD COMPLETE, click OK. MTA closes the game after you press the button.

   Source: MTA source code

5. Update stuck or not offered: install MTA yourself

   Only if the update inside MTA does not work, MTA says An update is currently not available., or MTA disconnects you with Server is running a newer build.

   Go to MTA's website (multitheftauto.com, also at mtasa.com) and download the MTA installer. Install it over the MTA you have now. Then start MTA and join the server again.

   Source: MTA forum, MTA wiki, MTA source code

6. If the update stops with an error

   Only if MTA says Could not update due to file conflicts, or Your installation may be corrupt now.

   File conflicts: close your other programs and try again. If other programs keep a file locked, MTA offers to close them and continue the update. Installation may be corrupt: install MTA again from www.multitheftauto.com, or run the update with administrator rights.

   CL02: MTA cannot copy update files →

   Source: MTA wiki, CIT Live KB · account_support.md

These are the steps of the guide MANDATORY UPDATE or OPTIONAL UPDATE when you join a server.

Still not fixed? Copy the whole message, not only the code, and check your log in the Fix tool. It is read on your own computer.

About this code

A CD code appears when a connection to a server fails, is refused, or ends. Most of them carry a second line with the server's own reason. MTA's own documentation gives CD39 as Server build newer.

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