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Firmware release notes for Eaton Gigabit Industrial Gateway Card for UPS (INDGW-M3, P/N 744-07774)

Firmware : Release 2.3.3
Date     : 2026/01/09
Eaton (c) 2026
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                                Release 2.3.3 January 2026
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Software compatibility: IPP 1.72 and higher, IPM 2.72 and higher, BLSS 7.0 and higher

Supported UPS:		Eaton 5P, 5PX, 5SC Rack, 9PX, 9PXM, 9SX, 9130, FERRUPS FX, 9E, 93PS (fw 2.50->), 91PS, 93E 15-80 EMEA (fw 8.00.01->), 93E G2 EMEA (fw 4.0.20->)

Supported ATS:      Eaton EATS115, EATS16, EATS120, EATS220

New Features and Performance
- No new features or performance enhancements were introduced in this release.

User Interface
- No user interface changes were introduced in this release.

Security Enhancements
- No security-specific changes were introduced in this release.

Bug Fixes
- FastCGI connection handling: Corrected an issue where FastCGI connections were not being closed properly, improving overall system stability. 
- SSE service behavior: Added non-blocking behavior to improve event responsiveness. 
- XUPS-MIB formatting: Corrected a minor formatting error (superfluous comma in "Description") in the XUPS-MIB file to maintain compatibility with SNMP monitoring tools. 

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                                Release 2.3.1 September 2025
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Software compatibility: IPP 1.72 and higher, IPM 2.72 and higher, BLSS 7.0 and higher

Supported UPS:		Eaton 5P, 5PX, 5SC Rack, 9PX, 9PXM, 9SX, 9130, FERRUPS FX, 9E, 93PS (fw 2.50->), 91PS, 93E 15-80 EMEA (fw 8.00.01->), 93E G2 EMEA (fw 4.0.20->)

Supported ATS:      Eaton EATS115, EATS16, EATS120, EATS220

New Features and Performance
- Expanded protocol support: Added BACnet integration, Modbus RTU/TCP support, and protocol compatibility for Blade UPS units.  
- Enhanced monitoring and telemetry: Added internal UPS temperature readings, new outlet-group alarms and traps, and enabled MQTT-Paho distribution. 
- Improved Modbus performance: Enhanced handling of Modbus operating and health status.  

User Interface
- General UI/UX improvements: Resolved layout, alignment, cosmetic, and synoptic readability issues, and improved alarm display, system logs, configuration behavior, and Power bar accuracy. 
- Localization updates: Resolved language inconsistencies for remote users (e.g., Turkish, Polish, Thai). 
- ATS configuration visibility: Reinstated ATS information in ATS settings. 
- Configuration clarity: Added sensor offset value display and removed extraneous characters in AMTP test email output. 

Security Enhancements
- Certificate and TLS handling improvements: Ensured correct certificate revocation, enhanced signing and verification behavior, and corrected certificate signing and CLI download flows. 
- Firewall reliability improvements: Corrected HTTP redirection handling and improved firewall behavior for Modbus and HTTP services. 
- Authentication and access improvements: Improved password handling and messaging for local users, and enhanced CLI/REST address filtering and autocompletion. 
- Logging reliability: Strengthened logging for web sessions and firewall-related service restarts. 

