Check This Out! (CTO!) Guide (December 2025)

System Center 2025 Update Rollup 1 is now available, bringing security enhancements with TLS v1.3, SQL Server 2025 support, and improved Linux monitoring. It also includes fixes and new features for various System Center components like Operations Manager and Data Protection Manager. Automating Windows Server licensing with Azure Arc Policy streamlines compliance and management for hybrid environments by enabling benefits like Azure Update Manager. Shifting user Source of Authority from Active Directory to Microsoft Entra ID empowers cloud identity management and reduces AD dependencies. Azure Managed Prometheus now supports monitoring virtual machines and scale sets, extending beyond containers for HPC scenarios. Copilot Agents leverage AI to automate the creation of Slurm job submission scripts for HPC workflows, reducing manual effort and errors. Deploying Windows Server virtual machines in Azure Availability Sets enhances reliability for web server workloads by protecting against hardware failures. Microsoft Azure emphasizes transparency during and after outages through Azure Service Health and proactive communication. Azure Web Application Firewall can protect against the React RSC CVE-2025-55182 vulnerability by enabling updated rule sets. Application layer DDoS protection is enhanced with Azure Application Gateway WAF's HTTP DDoS Ruleset, which uses adaptive learning to detect and block attacks. Azure Compute introduced new features at Ignite 2025 to support demanding workloads like AI and analytics, including Direct Virtualization and enhanced VMSS capabilities. The latest Prism update improves Windows on Arm devices by enabling more x86 applications and games to run via emulation. Support for Storage Spaces Direct and SAN coexistence in Windows Server 2022/2025 failover clusters offers flexible data management. Windows Server 2025 now supports S2D Campus Clusters for resilient storage solutions across geographically dispersed locations. Modernizing and migrating custom applications to Azure involves assessing applications, choosing strategies, and leveraging Azure's cloud-native services and AI tools. Migrating from Amazon API Gateway to Azure API Management is detailed with feature mapping and a phased migration process.