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Considerations before upgrading to TIE server 4.x.x

  • Published on Sep 11, 2026
  • 1 minute(s) read
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Upgrading to TIE server 4.x.x includes full database replication and high network utilization.

Important

The upgrade process to TIE server 4.x.x forces a full database replication from the primary server to every Secondary and Reporting Secondary server of the topology. You can expect high network usage during the Secondary servers upgrade. The database upgrade can take several minutes depending on the database size and bandwidth conditions.

TIE Ecosystem

Considerations for the TIE Ecosystem are:

  • The endpoint reputation cache is rebuilt when upgrading the components. Trellix recommends you to perform incremental upgrades to minimize the impact on the TIE server capacity.

  • Upgrade the TIE client and the Trellix DXL Client in the endpoints first, then upgrade the Trellix DXL broker appliance. For more information about upgrading these products, see the release notes for those products.

Trellix Agent for MLOS

Considerations for Trellix Agent for MLOS are:

  • If you upgrade TIE to 4.x.x version, the Trellix Agent for MLOS is upgraded after you upgrade the server appliance.

  • Do not install the Trellix Agent for Linux because it is not compatible.

Note

The task for upgrading the Trellix Agent for MLOS runs at 12 a.m. on the same day you upgrade the appliance. If you can't complete the Trellix Agent upgrade after that period, you can upgrade it manually. For more information, see the Troubleshooting section.

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