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N2OS Release Notes
N2OS Release Notes for all the latest releases.
N2OS 25.2.0
Contents and detection
A list of the improvements for the Contents and Detection that have been introduced in this release.

N2OS Release Notes
N2OS Release Notes for all the latest releases.
- N2OS 25.2.0
  - Highlights
    An overview of the most impactful changes in this release.
  - Updates in upcoming releases
    Important changes in future releases that might require additional steps or planning during upgrade.
  - Base OS
    A list of the improvements for the operating system and GUI usability changes that have been introduced in this release.
  - Protocols, Smart Polling, and Arc
    A list of the improvements for Protocols, Smart Polling and Arc that have been introduced in this release.
  - CMC, Remote Collector, and AAA
    A list of the improvements for the CMC, Remote Collector and Authentication, Authorization and Accounting that have been introduced in this release.
  - Contents and detection
    A list of the improvements for the Contents and Detection that have been introduced in this release.
  - Resolved issues
    A list of the bugs and defects that have been addressed in this release.
  - Security fixes
    A list of security problems that have been addressed in this release.
  - Update path requirements
    Follow these instructions to have a smooth upgrade experience.
- N2OS 25.1.0
- N2OS 25.0.0
- N2OS 24.6.0
- N2OS 24.5.1
- N2OS 24.5.0
- N2OS 24.4.1
- N2OS 24.4.0
- N2OS 24.3.1
- N2OS 24.3.0
- N2OS 24.2.0
- N2OS 24.1.0
- N2OS 24.0.0
- N2OS 23.4.1
- N2OS 23.4.0
- N2OS 23.3.1
- N2OS 23.3.0
- N2OS 23.2.0
- N2OS 23.1.0
- N2OS 23.0.0

Contents and detection

A list of the improvements for the Contents and Detection that have been introduced in this release.

Improved the SIGN:CLEARTEXT-PASSWORD alert to include a plain text password transmitted on Telnet sessions.
To ensure consistent policy enforcement, the Learning section in the Security Control Panel is now locked when the sensor is managed by Vantage. This aligns its behavior with the Security Profile and supports centralized configuration control.
Implemented a new detection algorithm that enhances the precision of transmission control protocol (TCP) flooding alerts and reduces false positives.
Added support for alert rules that match text within the alert description.
The expert view of the Alerts table now displays a Creation time column, representing the timestamp of the first occurrence of each alert.