Changelogs

Explore WithSecure changelogs to track all product updates, new features, and version changes.

Countercept Agent for Linux – 2025-09-29 Update

The update is related to the Countercept Agent’s Sensor component. The Sensor component gathers data to be analyzed in the WithSecure backend to identify any malicious activity.

Product Name: Countercept Agent for Linux – Sensor Component

Version: 2025.2.168

Pilot Availability: 30/09/2025

General Availability: 14/10/2025

Predecessor: 2025.1.198

Release Purpose:

  • New Features and Enhancements
  • Generic Maintenance

Customer Action Required:

  • N/A

Name Changes:

  • No changes to file, process, or service names.

Files Updated:

  • sensor

New Features and Enhancements:

  • Faster initial forwarding of telemetry 
  • EPP scan and tamper events are included in new detections 
  • New detections and detection improvements 

Generic Maintenance:

  • Dependency updates and bug fixes

OS Support:

  • AMD64
    • AlmaLinux 8.4 – 9.x
    • Amazon Linux 2
    • CentOS 7, 8
    • Debian 10, 11, 12
    • Oracle Linux 7, 8, 9 (RHCK and UEK)
    • RHEL 7, 8, 9
    • Rocky Linux 8, 9
    • SUSE Linux Enterprise Server 12 SP3 – SP5
    • SUSE Linux Enterprise Server 15
    • Ubuntu 18.04, 20.04, 22.04, 24.04
  • ARMv8/AArch64
    • Debian 11, 12
    • Rocky 9
    • Ubuntu 22.04, 24.04

Please note that CentOS 6 and RHEL 6 are not supported. The Countercept Agent will break with this update, on endpoints where these operating systems are in use. WithSecure recommends upgrading these endpoints to the supported versions of the operating system, or switching clients to managed updates in collaboration with the WithSecure Engagement team.