Azure Weekly: Sep 25, 2026 Highlights

Key insights

• Azure Weekly Update - 25 Sep 2026: Short video summary covering product launches, retirements, and security fixes for Azure.
  Watchers should treat this as a practical roundup to spot changes that need planning or fast action.
• Check Inventory API retirement: The legacy Check Inventory API was retired on 25 Sep 2026.
  Migrate integrations to the new Check Inventory by Resource Type API to avoid service breaks.
• SQL Data Sync deprecation: Microsoft blocked new deployments on 9 Sep 2026 and scheduled SQL Data Sync to retire on 30 Sep 2027.
  Plan a migration path now and stop building new solutions on this service.
• New general availability features: Ephemeral OS Disk with full caching is GA to improve VM and VMSS performance.
  Playwright Workspaces reached GA in selected regions, and App Service can now act as a trigger destination for Managed Connectors to enable real-time web app integrations.
• Critical security and patches: A high-severity CVSS 10.0 privilege-escalation issue in Azure AI Foundry was fixed and Microsoft released patches for multiple Azure and Copilot-related components.
  Review vendor advisories and apply updates where needed.
• Runtime and platform notices: The video notes several runtime changes including the Node.js 22 retirement for Functions and updated support for PowerShell 7.6 and AKS Flex Nodes.
  Test and upgrade function apps and workloads to supported runtimes to stay secure and supported.

Overview

In his weekly roundup, presenter John Savill's [MVP] reviews the most relevant Azure changes for the week of 25 September 2026, framing the update as a compact briefing for architects, operators, and developers. He walks viewers through a mix of new features, general availability announcements, and key retirement notices, while signaling where administrators should focus immediate attention. Consequently, the video serves both as a news summary and an operational prompt, helping teams prioritize follow-up work.

Compute and Platform Enhancements

One of the prominent items covered is the general availability of improvements designed to boost virtual machine performance, including Ephemeral OS Disk with full caching. These changes target latency-sensitive workloads and scale set scenarios, thus offering an effective path to cost-efficient performance gains. However, adopting ephemeral disks requires careful consideration of persistence and backup strategies, since ephemeral storage changes how operating system state is handled during failures.

Additionally, the host reviews updates around virtual machine families and scale options, noting new VM variants and instant access features from the VM Resource Provider that aim to reduce provisioning time. While faster start times improve responsiveness for bursty workloads, teams must balance those gains against image management and patching practices, because rapid provisioning can complicate centralized lifecycle controls. Therefore, architects should evaluate automation and imaging pipelines alongside any performance upgrades.

Web, Containers, and Serverless Notes

The update highlights new capabilities for the web and serverless stacks, including the ability for Azure App Service to act as a trigger destination for managed connectors and expanded support for Functions with modern runtimes. These additions facilitate event-driven integrations and help teams modernize application triggers without building custom glue code. At the same time, increased platform convenience can obscure complexity: observability, cold-start behavior, and operational costs still require explicit design and monitoring.

Container and Kubernetes-related items also feature, such as the rollout of AKS Flex Nodes and new Azure Container Apps sandbox and express options. These features aim to make workload placement more flexible and to accelerate development testing, yet they introduce tradeoffs in resource isolation and networking assumptions. Consequently, organizations should test egress controls and networking policies before moving sensitive workloads to newer hosting modes.

APIs, Deprecations, and Migration Work

Perhaps the most operationally urgent message in the video concerns API and service retirements, notably the retirement of the older inventory API and the recommendation to migrate to the Check Inventory by Resource Type API. Savill stresses that teams relying on deprecated interfaces need to schedule migrations promptly to avoid integration failures. Moreover, the session calls out a staged block on new deployments for SQL Data Sync, which means customers should plan alternatives well before the final retirement date to prevent disruption.

These deprecation notices underscore a core tradeoff: while cloud providers streamline and consolidate APIs, customers pay a migration cost in engineering time and testing effort. Successful transitions require inventorying dependent systems, validating the replacement API behavior, and scheduling migration windows that align with compliance and operational windows. Therefore, treating deprecation timelines as project milestones rather than informal notices helps reduce last-minute risk.

Security, Foundry, and AI Platform Updates

Security coverage in the video includes fixes for high-severity vulnerabilities in Azure AI and related components, with one high-profile privilege-escalation issue addressed in Azure AI Foundry. Savill advises that while some fixes required no customer action, teams should still verify patch levels and service configurations to ensure they are not exposed by residual misconfiguration. The item reminds viewers that even when vendor patches are applied, operational validation closes the loop on security assurance.

Moreover, the episode outlines feature work in Foundry and Copilot-integrated tooling, such as new hosted agent controls, publishing paths, and model updates including next-generation models highlighted in the platform. These additions broaden automation and AI-assisted workflows, yet they bring challenges in governance, network egress control, and data handling. Consequently, organizations must weigh productivity gains against the complexity of compliance and secure integration.

Practical Takeaways and Next Steps

To conclude, the video leaves viewers with clear actions: prioritize migrations away from deprecated APIs, validate security patch status for AI and platform services, and evaluate whether new compute or serverless features fit existing operational models. Savill recommends using the update as an input to team backlog planning rather than a checklist, because many changes have dependencies that require testing and rollout coordination. In practice, that means forming short cross-functional projects to handle API migration, security validation, and performance testing.

Overall, the episode provides a concise, actionable view of Azure’s weekly changes while emphasizing tradeoffs between speed of adoption and operational control. As a result, technical teams can use the briefing to align priorities, plan migrations, and prepare for both opportunities and risks introduced by new cloud platform features.

Keywords

Azure Weekly Update 25 September 2026, Azure updates September 2026, Microsoft Azure announcements 2026, Azure new features September 2026, Azure security updates 2026, Azure service changes September 2026, Azure pricing and billing updates 2026, Azure governance and compliance September 2026