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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesUse Hytale’s built-in staged updater: run /update check, download the release with /update download, then confirm it with /update apply --confirm. The server exits with code 8; your wrapper script applies the staged files and starts the server again. It replaces release binaries and assets while preserving configuration, saves, and the mods/ directory when the expected layout and wrapper are used.
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Back up first, schedule a maintenance window, and check the client, Java, memory, and mod requirements below. The Hytale Server Manual from Hypixel Studios, updated October 12, 2026, is the authority for the commands and behavior described here.
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Hytale’s updater is staged rather than an in-place replacement. A check finds a release, a download puts its files in staging, and an apply command tells the server to exit at a safe point. The wrapper—not the running server process—then swaps in the staged release and launches the next server process.
The distinction matters because /update apply --confirm does not leave a second server running and does not perform a self-contained restart. The manual states, “The server does not restart itself.” A wrapper must be present and must recognize the update exit code. Without that wrapper cycle, an update can remain staged while the old process simply stops.
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Requirements to check before updating
Runtime and hardware
- Use Java 25.
- Provide at least 4 GB of memory for the server process and operating system overhead.
- Use a supported x64 or arm64 system.
- Run the official launcher layout with
Assets.zip, a launcher script (start.shorstart.bat), and aServer/directory containingHytaleServer.jarand configuration.
These are the minimums stated in the 2026 Hytale server documentation, not a performance guarantee for a heavily populated world or a large mod set. Leave headroom for backups, world saves, logs, and your operating system.
Protocol compatibility
The client and server must use the exact same protocol version. After a protocol-changing release, a player who has not updated the client cannot connect to the updated server. This is a version mismatch, not usually a port-forwarding or firewall problem; compare versions before changing network settings.
Permissions, disk space, and access
- Run the update commands with an account that has the server permission required to use
/update. - Ensure the server can write to its staging and backup locations.
- Keep enough free disk space for the downloaded release and a backup of the current installation.
- Retain console and file-log access so you can verify the restart or roll back if startup fails.
How to update a Hytale dedicated server
Use this sequence during a planned maintenance window. The commands are entered in the Hytale server console or by an administrator with equivalent command access.
1. Announce maintenance and drain the server
Tell players when connections will close, stop new activities, and allow anyone online to disconnect cleanly. Do not begin while a critical world operation or save is in progress. A short announced outage is safer than forcing the process down during active writes.
2. Confirm that backups will run
The documented default is RunBackupBeforeUpdate: true. The standard wrapper defaults also enable backups. Check your configuration rather than assuming a custom wrapper kept those defaults. A backup should include the world saves and the configuration needed to recreate the current server state.
3. Check for a release
Run:
/update checkRead the result and note whether a newer release is available. A check does not download or apply anything, so it is safe to perform before announcing a final outage.
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Run:
/update downloadThis places the release in the updater’s staging area without replacing the live files. Use /update download --force only when you deliberately need to download the current release again or bootstrap the update layout. It is not a general fix for a failed update and can waste time and disk space.
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5. Review updater status
Run:
/update statusConfirm that the intended release is staged and that the server reports no download or verification error. If the status is incomplete, resolve the file, permission, or network problem before applying.
6. Apply the staged release
When the maintenance window is active, run:
/update apply --confirmThe server shuts down with exit code 8. That code signals the wrapper to apply the staged files and launch the updated server. The command is therefore expected to end the current process; an apparent stop is not automatically a failed update.
7. Let the wrapper complete the launch cycle
Keep the wrapper running. Do not start a second manual copy of the server while it is applying files, because two processes can contend for the same world and port. Wait for the wrapper’s startup output and for the new process to begin listening.
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8. Verify the updated instance
- Read the startup log for the release and protocol version.
- Connect with a client that has the matching version.
- Enter the world and confirm that terrain, inventories, permissions, and server configuration are intact.
- Load each important mod or plugin path and check its initialization output.
- Watch the log for repeated exceptions, missing assets, or save errors during the first minutes of play.
What is replaced and what is preserved
The staged updater selectively replaces release material. It is designed to keep the data that belongs to your server rather than overwrite it wholesale.
| Item | Expected update behavior | Operator check |
|---|---|---|
HytaleServer.jar |
Replaced with the staged server binary. | Confirm the startup log identifies the intended release. |
| Assets and release files | Updated as part of the staged release, including the expected asset bundle. | Allow the wrapper to finish before launching manually. |
| Launcher scripts | Release wrapper scripts may be replaced or refreshed. | Preserve local edits separately; verify custom arguments after the restart. |
| World saves | Preserved by the selective update design. | Enter several worlds and inspect recent save activity. |
| Configuration | Preserved. | Check ports, permissions, authentication settings, and update options. |
mods/ directory |
Kept in place. | Verify that every extension supports the new server build. |
Preservation is not a substitute for a backup. A corrupt save, an incompatible extension, or a locally modified launch script can still prevent a clean start, so keep the pre-update backup until the new instance has been tested.
Use the expected directory and wrapper layout
The updater commands depend on the standard installation structure. The parent game directory should contain Assets.zip, the launcher script, and the Server/ directory. Inside Server/ are HytaleServer.jar and the server’s configuration and data.
Launch from the Server/ context through the supplied wrapper rather than invoking the Java archive in isolation. The wrapper supplies the update handoff: it notices exit code 8, applies staged files, and starts the next process. Running only java -jar HytaleServer.jar can leave the staged release unapplied because no wrapper is watching for that exit code.
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Automatic checks, backups, and apply policy
Hytale’s documented defaults separate discovery from installation. The automatic check interval is 3,600 seconds, or one hour. A check can tell the server that a release exists, but it does not by itself replace files.
| Setting or behavior | Default documented value | Meaning |
|---|---|---|
| Automatic update check interval | 3,600 seconds (one hour) | The server checks for an available release at this interval. |
RunBackupBeforeUpdate |
true |
A backup is run before the update operation. |
AutoApplyMode |
Disabled | An operator must confirm application; staged files are not silently installed. |
Changing apply policy changes the operational risk. Manual confirmation lets you choose a maintenance window and check mod compatibility. If you enable a more automatic policy in your own deployment, retain equivalent backup and monitoring safeguards.
Keep mods and plugins compatible
The updater leaves the mods/ directory intact, but intact files are not automatically compatible. After every server release, inspect the extension’s stated support range and test it on the updated instance. A protocol or API change can cause a mod to fail during startup even though the world itself is preserved.
- Record the installed mod and plugin versions before maintenance.
- Update or temporarily remove extensions that do not support the target server build.
- Start with a copied or backed-up world when an extension has a migration step.
- Read the first error in the log; later stack traces may be consequences of the original incompatibility.
Do not delete the entire mods/ directory as a first troubleshooting step. Isolate the extension named in the log and restore the directory from the backup if a test change makes the situation worse.
Troubleshooting an update that did not finish
/update commands are unavailable
Check that the installation uses the expected game/ layout, that Assets.zip and the launcher are in the parent directory, and that the server is launched from Server/ through the wrapper. A manually assembled directory or a direct Java launch can omit the updater components or place them where the server cannot find them.
The release is staged but nothing restarts
Applying is a shutdown signal, not an automatic restart. Confirm that the wrapper script is the process supervising the server and that it remains running after the server exits with code 8. If you launched the server directly, stop it, switch to the supplied wrapper, and follow the status output before attempting another apply.
The server stops with exit code 8 and appears offline
Exit code 8 is the expected handoff for the staged updater. Look for the wrapper’s apply and relaunch messages. If there is no such message, the wrapper is missing, was terminated, or cannot write the staged files. Check its permissions, working directory, and available disk space.
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The updated server crashes during startup
Stop repeated restart attempts and inspect the new startup log. Common branches are an unsupported mod, a changed configuration option, an incomplete staged download, or a Java/runtime mismatch. Keep the pre-update backup and use the updater’s rollback instructions to restore the prior release and data. Do not overwrite the only backup with another test run.
Players cannot connect after the update
Compare the client and server protocol versions first. If they differ, update the clients or run the server release required by those clients. Only after versions match should you investigate address, port, firewall, or authentication settings. A protocol mismatch cannot be repaired by opening another network port.
The world loads but data is missing
Stop the server cleanly and compare the active save path with the path in your pre-update backup. Check that the wrapper started the intended installation and did not point to a newly created data directory. Restore the backup only after preserving the current logs and the affected save for diagnosis.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Rollback procedure
Rollback is appropriate when the new process repeatedly fails, a critical extension is incompatible, or a world check shows corruption. Follow the rollback instructions provided with the wrapper and updater rather than copying individual binaries at random.
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- Announce that the server is reverting and prevent players from reconnecting.
- Stop the restart loop and retain the failed startup logs.
- Identify the backup created before the update and verify its date and contents.
- Use the updater’s rollback mechanism to restore the prior release and backup.
- Start through the wrapper and confirm the old server protocol before allowing clients online.
- Test the suspected mod or configuration change on a copy before scheduling another update.
A rollback returns you to the previous known state; it does not make an incompatible client match an older server. Tell players which client version is accepted after the reversion.
Self-hosting versus managed Hytale hosting
The commands are the same in principle, but operational responsibility differs. Self-hosting gives direct access to the wrapper, files, console, and logs. A managed provider usually exposes those functions through a control panel and handles the underlying machine and network.
| Decision area | Self-hosted server | Managed host |
|---|---|---|
| Files and mods | Full control over directories, launch arguments, backups, and extensions. | Access depends on the provider’s panel, file manager, and mod policy. |
| Backups and rollback | You configure storage, retention, and restore testing. | The provider may automate backups, but you must confirm retention and restoration access. |
| Updates | You run the check, download, apply, and wrapper cycle. | Many plans offer one-click installation or automatic updates; verify whether manual confirmation is available. |
| Uptime and maintenance | You supply hardware, power, operating-system maintenance, and monitoring. | The provider handles hardware and networking, while you still schedule game maintenance. |
| Console and logs | Direct local or remote access. | Usually provided through a web console and downloadable logs, subject to the plan. |
| Support | You diagnose Java, wrapper, storage, and network failures. | Support can investigate infrastructure problems; mod and world issues may remain your responsibility. |
| Recurring cost | Uses your existing hardware and electricity or colocated infrastructure. | Requires a recurring hosting charge in exchange for managed infrastructure. |
Hypixel Studios lists Nitrado, Apex Hosting, GPORTAL, Shockbyte, and Dathost as Launch Verified providers. Their advertised services include networking, hardware, maintenance, and commonly one-click Hytale installation or automatic updates. Availability, plan limits, backup retention, and current verification status can change, so confirm those details with the provider before migrating a live world.
Operational limits worth planning around
The Hytale Server Manual documents a limit of 500 servers per game license for authenticated server use and a one-hour lifetime for a provider-authenticated game session. Those figures matter primarily to operators running many instances or building automation around authentication; they do not change the command sequence for a normal single dedicated server. Treat them as deployment constraints and re-check the current manual when designing a multi-server fleet.
A repeatable maintenance checklist
- Schedule and announce the outage.
- Confirm Java 25, memory capacity, architecture, disk space, and write permissions.
- Verify that the wrapper and standard directory layout are in use.
- Confirm
RunBackupBeforeUpdate: trueor an equivalent tested backup job. - Record the current server, client, mod, and plugin versions.
- Run
/update check. - Run
/update download; reserve--forcefor intentional redownloads or layout bootstrapping. - Run
/update statusand verify the staged release. - Run
/update apply --confirmduring the maintenance window. - Wait for exit code 8 and let the wrapper apply and relaunch.
- Check startup logs, protocol compatibility, worlds, permissions, configuration, and extensions.
- Keep the backup until players have completed a normal session without errors.
Following this process updates the release files without treating your world data as disposable. The critical safeguards are a tested backup, the official wrapper, exact client/server protocol matching, and a deliberate compatibility check for every mod or plugin.
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