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MTA:SA fix

MANDATORY UPDATE or OPTIONAL UPDATE when you join a server

When you join, MTA says the server needs or recommends another MTA version. Click Yes to update. If the update inside MTA does not work, download MTA from its website and install it over your MTA.

The messages

To join this server, you must update MTA.

Server says an update is recommended, but not essential.

This server requires version

This server recommends version

is required to join the selected server

Do you want to update now?

An update is currently not available.

Disconnected: Server is running a newer build.

MANDATORY UPDATE

OPTIONAL UPDATE

Codes on this page: CD39

Steps

  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

See also: CL02: MTA cannot copy update files, MTA installer says the download is incorrect, MTA file version mismatch or incompatible network module

Worth knowing

In the MTA:SA ... required window, It is not possible to connect at this time. means no download was available for that version. The message says to try later.

If the update download says The downloaded file appears to be incorrect., MTA links its own help for an incorrect download.

Disconnected: Server is running a newer build. is code CD39 in MTA's error code list (saved copy, 3 October 2026). MTA shows an Information line under it.

The advice to install MTA over the old one when the update inside the game does not work is from an MTA forum moderator (February 2022), for a player whose update was stuck at 0%.

MTA also has other version messages: Version mismatch, Bad version, Server is running an older build and Server from different branch. Our sources give no fix for those, so this page does not cover them.

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.

Other problems like this

All fix guides · Every MTA:SA error code · Crash codes and offsets

Where this comes from

MTA's source code and wiki, an MTA forum moderator, and the CIT knowledge base

Read on 23 October 2026 and written in our own words here.