Azure Update - 24th October 2025

Key Concepts

• Azure Managed Redis: An in-memory database service for caching and other scenarios.
• Availability Zones: Physically separate data centers within an Azure region that provide high availability.
• Capacity Reservations: Guarantees the availability of compute capacity for VMs and VM Scale Sets.
• Shared Capacity Reservation Groups: Allows capacity reservations to be shared across multiple subscriptions.
• Virtual Core Customization: Enables fine-grained control over virtual CPU attributes for VMs.
• Azure App Gateway Migration: Scripts to facilitate migration from Application Gateway v1 to v2.
• Azure Storage Mover: A service for migrating data, now supporting cross-cloud migrations from AWS S3.
• Azure Managed PostgreSQL Flexible Server: Database service with near-zero downtime scaling.
• Azure SQL Managed Instance Redirect: Improved connection handling for enhanced performance and reduced gateway dependency.
• Hyperscale: A database architecture offering higher capacity and performance.
• Containerization Assist for MCP Server: An AI-powered tool for containerizing MCP server applications.
• GPT-4o Transcribe: An automatic speech recognition model for real-time transcription across multiple languages.
• Azure Computer Vision Image Analysis: A service being retired, with alternatives recommended for specific use cases.

New Videos and Awareness

• Skin Cancer Awareness: A YouTube short was posted emphasizing the importance of seeing a specialist for skin blemishes present for more than two months, as skin replenishes every two months.
• Azure Managed Redis: A video demonstrating the use of Azure Managed Redis for caching generative AI model inferences to accelerate operations and reduce costs. It also covers non-caching scenarios and architecture.
• Availability Zone Alignment: A video explaining how to determine the alignment of availability zones between different subscriptions within a region, including a script to assist with this process.
• Top 3 Tips for Cloud Architects: A video sharing key advice for aspiring cloud architects.

Azure Compute Updates

• Azure Functions: Now supports Python 3.13 and allows targeting specific runtime versions.
• Azure Kubernetes Service (AKS):
  • Supports upgrading from Azure Linux 2.0 to 3.0 as a separate OS skew upgrade, independent of the Kubernetes version (for Kubernetes 1.28 and above).
• Shared Capacity Reservation Groups (Preview):
  • Previously, capacity reservations were subscription-specific and incurred costs immediately.
  • Now, capacity reservations can be shared across up to 100 different subscriptions, provided appropriate permissions are in place.
  • This enables scenarios like using a capacity reservation in a DR region for dev/test workloads and then switching to production during a disaster.
  • A full video on this topic is planned for the following week.
• Virtual Machine Virtual Core Customization (Preview):
  • Allows customization of virtual CPU attributes.
  • Simultaneous Multi-Threading (Hyper-threading) Disablement: One core can be configured to appear as a single logical core.
  • Configurable Constrained Cores: A specific number of cores can be hidden from the OS, useful for license products that are priced per OS core. Other VM attributes like memory, network, and storage remain unaffected.

Azure Networking Updates

• App Gateway Migration Scripts: New scripts are available in general availability (GA) to assist with migrating from Azure Application Gateway v1 to v2. These scripts clone configurations, including TLS certificates and public IPs.

Azure Storage Updates

• Azure Storage Mover: Now supports cross-cloud migration, specifically from AWS S3 to Azure Blob storage. This feature is in GA and aims to accelerate data movement between clouds.

Azure Database Updates

• Azure Managed PostgreSQL Flexible Server:
  • Introduces near-zero downtime scaling capability, with impact ranging from 10 to 30 seconds.
  • This applies to changes in compute tier or vCore count.
  • The process involves creating a new instance, replicating content, synchronizing, and then switching over.
  • A specific sequence is required for read replicas, documented on Microsoft Learn.
• Azure SQL Managed Instance:
  • Redirect Option Update: The redirect option for client connections is enhanced to improve performance and remove gateway dependency.
  • Instead of proxying through the gateway, TSQL clients are directed to connect directly to the primary replica.
  • Previously, limitations often required clients to use the proxy. These have been removed, allowing clients to connect via port 1433 only. Older clients that don't support redirect are still transparently proxied.
  • Hyperscale Conversion: Geo-replicated databases can now be converted to hyperscale, even with one geo-secondary replica. Hyperscale separates compute and page servers for higher capacity and performance.

Miscellaneous Azure Updates

• New Malaysia Region: Southeast Asia 3 is coming soon and is currently in private preview.
• Containerization Assist for MCP Server: An open-source, AI-powered assistant available on GitHub. It helps build, scan, and deploy Docker containers for MCP server applications using VS Code and other compatible tools.
• GPT-4o Transcribe: A real-time automatic speech recognition model that converts spoken language to text across 100 languages. It's particularly useful for customer support, virtual meetings, and live events.
• Azure Computer Vision Image Analysis Retirement: This service will be retired in approximately three years.
  • For OCR and Read capabilities, switch to Document Intelligence.
  • For face scenarios, use the Face API.
  • For other scenarios, consider Generative AI image capabilities or the new Azure AI Content Understanding. Users are advised to evaluate their current usage and choose the most suitable alternative.

Conclusion

This Azure update highlights significant advancements across compute, networking, storage, and database services. Key themes include enhanced performance and cost optimization (Azure Managed Redis, SQL Managed Instance redirect), improved availability and resilience (Availability Zone alignment, Shared Capacity Reservations), and expanded capabilities for hybrid and multi-cloud environments (Storage Mover, Containerization Assist). The introduction of preview features like Virtual Core Customization and Shared Capacity Reservation Groups signals a move towards more flexible and cost-effective resource management. The retirement of Azure Computer Vision Image Analysis underscores the ongoing evolution of Azure AI services, directing users to more specialized and advanced solutions.