Azure Arc Agent 1.54 Stuck? Fixing the WSUS Deadlock and Moving to 1.6x

This article provides a technical deep-dive into resolving issues with Azure Arc Agent version 1.54 being stuck and not updating. It explains the strict 12-month support window for Azure Arc agents, the architectural changes in version 1.6x including automatic extension upgrades, and step-by-step instructions for configuring WSUS or Configuration Manager to sync the new 'Azure Connected Machine Agent 3' product category. It also details a manual intervention method using the 1.62 MSI to break the deadlock and ensure systems remain supported and secure. The article is focused on IT/technology topics including Azure, WSUS, agent management, and patching strategies.