The new docs.trellix.com features a modernized UI and AI-powered conversational search. Content is currently available in English, with additional languages launching in early November 2026. We hope you enjoy the updated experience.

Trellix File and Removable Media Protection 5.4.4 Release Notes

Prev Next

Trellix File and Removable Media Protection 5.4.4 release addresses known issues and product issue.

This release includes all features and fixes from the previous release. We recommend that you always upgrade to the most current update.

Release details

For release dates and build numbers, see Trellix FRP product release information section in KB81149.

Important

If you are using older versions of Trellix products on macOS, make sure to install or upgrade to the latest rebranded version for all the products to function normally. Upgrading any one of the products, except Trellix Agent and Trellix Policy Auditor, removes all other products that were previously installed. For more information about installing or upgrading Trellix products on macOS, see KB96485.

Rating

The rating defines the urgency for installing this update.

This update is recommended for all environments. Apply this update at the earliest convenience.

Product compatibility

Trellix FRP 5.4.4 release supports: Trellix ePolicy Orchestrator - On-premises — 5.10.x.

Upgrade support

Trellix FRP 5.4.4 supports Microsoft Windows 10 22H2.

For complete system requirements, see supported platforms for Trellix FRP in KB81149.

New features and changes

This release provides support for these features.

  • Support for Apple Silicon M1 and M2 — Trellix FRP 5.4.4 supports a Universal Binary approach where M1/M2 processors are supported natively by Trellix FRP. If the processor is Intel, the application will run natively on Intel. If the processor is M1/M2 chipset, the application will run natively in M1/M2. This native M1/M2 supports only Mac. This works without the Rosetta layer. This means if the Rosetta is disabled, Mac supports M1/M2.

  • System Tree Path — On the FRP key assignment page, the new column System Tree Path is added in System Assignments, which shows the path for Node Name.

Resolved issues

Category

Reference

Resolution

Fixes to features

FRP-7947

The FRP user mode application (MfeeeffCore.exe) no longer crashes with an error "0xC0000409" in frpcloud.dll.

Fixes to features

FRP-8072

User token recovery now successfully generates a response code without token data corruption.

Fixes to features

FRP-8098

Trellix FRP now displays an initialization pop-up window for initializing the removable media device.

Fixes to features

FRP-8132

Sufficient logging is now provided to track FRP policy enforcer progress.

Fixes to features

FRP-8136

FRP key assignment will now assign key to new user in existing AD group assignment.

Fixes to features

FRP-8139

FRP Key assignments no longer get stuck in a pending state. Hence, users can successfully access encrypted data.

Fixes to features

FRP-8143

Network encryption bandwidth calculation no longer includes unchanged file sizes.

Fixes to features

FRP-8144

FRP: User Key Assignment is added in Queries & Reports to view and take action on stuck key assignments. Hence, the FRP keys are retained in a valid state after the SQL DB interrupts.

Fixes to features

FRP-8146

The FRP Key gets successfully assigned to the user after the AD account is moved from one domain to another.

Fixes to features

FRP-8157

(log_frp_cloud.txt) Buffer size determination messages are now logged only when the appropriate log level is enabled.

Fixes to features

FRP-8158

(log_frp_cloud.txt) log rotation happens when the maximum log file size is reached.

Fixes to features

FRP-8162

FRP policy now gets removed successfully from the EEFFKeyToPolicy table after the policy deletion.

Fixes to features

FRP-8190

Key assignment is now successful for multiple users or multiple groups.

Fixes to features

FRP-8291

After the password token reset, the ePO admin can successfully change the credentials without an error.

Fixes to features

FRP-8314

Copying downloaded files and files with a Windows security message to the encrypted network share folder can now be done without an error "0x80070490 (Element Not Found)".

Known issues

For known issues, see Trellix File and Removable Media Protection 5.x known issues (KB85807).