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N2OS Release Notes
N2OS Release Notes for all the latest releases.
N2OS 25.5.0
Base OS
A list of the improvements for the operating system and GUI usability changes that have been introduced in this release.

N2OS Release Notes
N2OS Release Notes for all the latest releases.
- N2OS 25.5.0
  - 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 25.4.0
- N2OS 25.3.0
- N2OS 25.2.0
- 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

Base OS

A list of the improvements for the operating system and GUI usability changes that have been introduced in this release.

Updated FreeBSD.
To prevent the loss of access to a sensor after firmware upgrades, Nozomi Networks Operating System (N2OS) now enforces the setup of a default gateway during management port configuration.
Improved the N2OS boot process by reclassifying and removing misleading log entries that were erroneously marked as errors.
Increased the default key length of self-signed certificates to 4096 bits.
Removed RSA+SHA224 from the supported transport layer security (TLS) signature algorithms.