Xerus Firmware
Release Notes
Version: Xerus 4.2.0 / Build 50274 / Release Notes, Version 1
Release Status: General Availability (GA)
Date: March 08, 2024

Release Overview
Xerus 4.2.0 Firmware is a General Availability (GA) Release for applicable Xerus-based product groups. This
release may include performance and productivity improvements, support for new products and accessories, newfeatures and enhancements, bug fixes, and general fixes for specific model families.

Applicability
This firmware release applies to the following Xerus-based product brands and models.

Product GroupModel

Rack PDUs

PX3, PX2, PXC, PXO

Smart Rack Controller

SRC

Branch Circuit Monitors

BCM2

Transfer Switch

PX3TS

Access Control

SmartLock™

Sensors

DX2 SmartSensors™

Asset Management

AMS2

General Guidelines for this Release
This release may not support some custom-engineered models. Please check the Support & Compatibility section
below. Or contact your regional Raritan Support team if you are unsure of the model number of your unit―it istypically viewable from the GUI’s Device Information page and is also printed on a label located on the device.

Note: Do NOT upgrade ANY other Raritan model(s) to Xerus 4.2.0 Firmware (other than what is listed in theApplicability table above) because the unit may either not be compatible with Xerus Firmware or may have beenbuilt after this release entered our System Tests and installing it may result in the unit becoming non-functional.

1Note: Do NOT downgrade your new Xerus-based product(s) to any prior Xerus Firmware release. Due to significant
internal enhancements in Xerus 4.2.0, a downgrade from Release 4.2.0 Build 50274 to ANY prior firmware release isNOT SUPPORTED. Please contact your regional Raritan Support team with any questions.

Release Highlights
New Products & Accessories
Issue ID

Description

81227

New WIFI Adapter support (DX2-WIFI-KIT) for iX7 and newer controllers

81957

New Modbus interface module support (USB-MOD-DONGLE)

New Features & Enhancements
Issue ID

Description

82754

Updated Lua script engine to the latest release 5.4.6

81914

Added additional sensor state support for Prometheus

81182

Added support for Active Directory Nested Groups

77026

Added additional authorization support for TACACS+

80999

Added SNMP support for existing gateway sensor feature81255

Removed CIFS/Samba support for storage of webcam snapshots (Snapshots can besaved locally or via FTP.)

82440

Improved USB devices view from the Device Information Page

Bug Fixes
Issue ID

Description

82827

Fixed Firefox browser issue not accepting keyboard input for the Lua script code
editor82839

Fixed issue with the Lua code editor crashing

82914

Fixed issue in the GUI with wrong Sensor value types being displayed

82950

Fixed Role names with uppercase letters not authenticating via LDAP

82834

Fixed default threshold error messaging not using preferred units of measure

82777

Fixed the user preferred unit of measure on a preference change from the CLI

81453

Fixed issue with CLI when linked PDU is added and not refreshing privilege options
until the session is restarted

82653

Fixed inconsistent naming issue on Inlet page

82822

Fixed issue of default thresholds edit dialog disappearing

82746

Fixed issue of sensor selection combo box being hidden with lack of data

282744

Fixed empty sensor accordion on the PDU page

82297

Fixed line break issues with Lua output

82180

Fixed inconsistencies when language translation is changed in the GUI

74195

Fixed communication errors in GUI when changing firewall states

82836

Fixed issues when changing default temperature values from the CLI

82793

Fixed inconsistent CLI response on disconnected peripherals

82885

Fixed duplicate title bar issue in the PDView app

83061

SmartLock - Fixed inconsistent lock and handle status in GUI

83024

Fixed inconsistent port naming when connecting Asset Management strips

Security Fixes & Updates
Issue ID

Description

82840

Reject overflows of zip header fields addressed (CVE-2023-45853)

83164

Use-after-free vulnerability in Linux kernel addressed (CVE-2023-6932)

83143

SSH vulnerability (Terrapin Attack) addressed (CVE-2023-48795)

83268

A Null dereference vulnerability in the Linux Kernel was addressed (CVE-2023-6915)

Please consult the appropriate User Guide for more information on these firmware features at raritan.com/support.

3Support & Compatibility with Xerus 4.2.0
Except for some recent Engineered to Order (ETO) models, applicable units/models that are Xerus-based can beupgraded to this firmware release (see Applicability table above).
If you are unsure that this Xerus Firmware release supports your unit/model or have any questions about supported
or unsupported configurations, please contact your regional Raritan Support team.

Upgrade Matrix (Path for Upgrades)
This firmware release is intended for factory shipments and firmware upgrades on the units/models stated in theApplicability table above.

Note: Due to file system changes in Xerus 4.0.x, the following upgrade paths must be followed, or the Xerus-based
device may become inoperable and require manual recovery.

Firmware VersionUpgrade Steps

3.0.x, 3.1.x, 3.2.x» 3.4.0 » 3.5.0 » 4.2.0

3.3.x, 3.4.x» 3.5.0 » 4.2.0

3.5.x, 3.6.x» 4.2.0

Note: Due to an issue found in recently released Xerus 4.0.x firmware updates, we strongly recommend that you

upgrade to release 4.2.0 Build 50274. If you need assistance, please contact your regional Raritan Support team.

Downloads
The following supplemental files can be downloaded at raritan.com/support:•Product Documentation and User Guides•

SNMP MIBs•

Related Tools and Drivers•

JSON-RPC SDK•Redfish® Documentation

Historical firmware version downloads can be found on raritan.com/support.

4Release Package Details
The Xerus 4.2.0 Firmware is a General Availability release package and is posted on the Raritan support website at
raritan.com/support.

Xerus 4.2.0 Package•“Xerus_ReleaseNotes_4.2.0.pdf” (this file)•A firmware release (binary): pdu-px2-040200-50274.bin

General Upgrade Instructions (stand-alone upgrade from the browser-based user interface)•Enable JavaScript in your browser before logging into the unit to start the upgrade process.

•Follow the instructions in the proper device User Guide. Please read the entire upgrade instructions before
starting an upgrade.

If you have any questions or cannot follow the instructions in the User Guide, please STOP and contact Raritan
Support for further instructions.

Contact Us
Go to raritan.com/support for contact options.

©2024 Legrand®. All Rights Reserved. Trademarks are the property of their respective owners. The industry-leading brands of Ortronics, Raritan,
Server Technology, and Starline empower Legrand’s Data, Power & Control to produce innovative solutions for data centers, building networks,and facility infrastructures. Our division designs, manufactures, and markets world-class products for a more productive and sustainable future.
The exceptional reliability of our technologies results from decades of proven performance and dedication to research and development.

5