615 Series Protection Relay Firmware Update 4.1.10 Release Notes

This document is a release note detailing firmware update 4.1.10 for ABB's 615 series protection relays (REF615, REM615, RET615, REU615, RED615). It outlines implemented usability improvements, including enhanced self-supervision watchdog task scheduling and a fix for missing Commit/Reject buttons in WebHMI, along with summaries of previous updates addressing cyber security vulnerabilities (CVE-2021-22283, Ripple20) and engineering fixes.