| General availability: Azure Sphere version 21.10 | Azure Updates | Launched | October 2021 | | 1 |
| General availability: Azure Backup now supports Archive Tier through Azure Portal | Azure Updates | Launched | October 2021 | | 1 |
| Azure Monitor Log Analytics and Application Insights support for Availability Zones is now generally available in West US 2 | Azure Updates | Launched | October 2021 | | 1 |
| General availability: Azure Advisor recommendations for Azure Data Explorer Clusters | Azure Updates | Launched | October 2021 | | 1 |
| General availability: Azure Log Analytics in West US 3, Korea South, and Canada East | Azure Updates | In preview | October 2021 | | 1 |
| Public preview: Azure Spring Cloud RBAC config server and registry access and Nginx logs and metrics | Azure Updates | In preview | October 2021 | | 1 |
| Public preview: Visual Studio Code for the Web | Azure Updates | In preview | October 2021 | | 1 |
| General availability: Azure Spring Cloud application health monitoring and end-to-end TLS/SSL | Azure Updates | Launched | October 2021 | | 1 |
| General availability: Azure Stack HCI new feature update | Azure Updates | Launched | October 2021 | | 1 |
| Public preview: Azure Percept DK September (2109) software update is available | Azure Updates | Launched | October 2021 | | 1 |
| General availability: Azure Monitor Query SDK | Azure Updates | Launched | October 2021 | | 1 |
| General availability: Cross region replication for Azure NetApp Files | Azure Updates | Launched | October 2021 | | 1 |
| OCR (Read) supports 122 languages in the Cognitive Services Computer Vision public preview | Azure Updates | In preview | October 2021 | | 1 |
| General availability: Azure IoT Central new and updated features—September 2021 | Azure Updates | Launched | October 2021 | | 1 |
| Azure HDInsight support for Restricted Public Connectivity is generally available | Azure Updates | Launched | October 2021 | | 1 |
| Azure HDInsight support for Azure Private Link is generally available | Azure Updates | Launched | October 2021 | | 1 |
| Announcing Azure Synapse Analytics pre-purchase plans, now generally available | Azure Updates | Launched | October 2021 | | 1 |
| Azure Maps iOS SDK is now in public preview | Azure Updates | In preview | October 2021 | | 1 |
| Azure Machine Learning now generally available in West US 3 | Azure Updates | Launched | October 2021 | | 1 |
| General availability: Azure Monitor application insights in Azure Spring Cloud | Azure Updates | Launched | October 2021 | | 1 |
| Public preview: Customize Azure Static Web Apps authentication with a serverless function | Azure Updates | In preview | October 2021 | | 1 |
| Generally available: IP-based website protection for Azure Static Web Apps | Azure Updates | Launched | October 2021 | | 1 |
| Public preview: IPv6 for Kubenet | Azure Updates | In preview | October 2021 | | 1 |
| Public preview: AKS out of tree cloud provider controller manager | Azure Updates | In preview | October 2021 | | 1 |
| Public preview: AKS support for WebAssembly System Interface (WASI) workloads | Azure Updates | In preview | October 2021 | | 1 |
| Public preview: AKS support for Kubernetes 1.22 | Azure Updates | In preview | October 2021 | | 1 |
| Public preview: HTTPS proxy configuration support | Azure Updates | In preview | October 2021 | | 1 |
| New centralized management experience for Azure Hybrid Benefit for SQL Server in public preview | Azure Updates | In preview | October 2021 | | 1 |
| Azure Database for PostgreSQL – Hyperscale (Citus): Azure Private Link support in public preview | Azure Updates | In preview | October 2021 | | 1 |
| Azure Database for PostgreSQL – Flexible Server: Ddsv4 and Edsv4 SKUs in public preview | Azure Updates | In preview | October 2021 | | 1 |
| Azure Machine Learning announcements - Oct 2021 generally available capabilities | Azure Updates | Launched | October 2021 | | 1 |
| Azure Database for MySQL – Flexible Server: Geo-redundant backup and restore in public preview | Azure Updates | In preview | October 2021 | | 1 |
| Azure Machine Learning announcements - Oct 2021 public preview capabilities | Azure Updates | In preview | October 2021 | | 1 |
| Generally available: Service Tag Discovery API | Azure Updates | Launched | October 2021 | | 1 |
| Azure Firewall Premium now generally available in five new Azure regions | Azure Updates | Launched | October 2021 | | 1 |
| General availability: Azure Translator now supports more than 100 languages and dialects | Azure Updates | Launched | October 2021 | | 1 |
| Public preview: Dynamic concurrency in Azure Functions | Azure Updates | In preview | October 2021 | | 1 |
| General availability: Azure Monitor container insights portal experience update | Azure Updates | Launched | October 2021 | | 1 |
| Public preview: Standard network features for Azure NetApp Files | Azure Updates | In preview | October 2021 | | 1 |
| Reminder: Azure Service Management API for Messaging Services will be retired on 1 December 2021 | Azure Updates | –
Retirement | 1 December 2021 | | 1 |
| General availability: Azure Sphere version 21.10 expected on Oct. 20, 2021 | Azure Updates | Launched | October 2021 | | 1 |
| Azure Functions Python 3.9 support is now generally available | Azure Updates | Launched | October 2021 | | 1 |
| Windows 11 is now generally available on Azure Virtual Desktop | Azure Updates | Launched | October 2021 | | 1 |
| South Africa North Availability Zones now generally available | Azure Updates | Launched | October 2021 | | 1 |
| Korea Central Availability Zones now generally available | Azure Updates | Launched | October 2021 | | 1 |
| Azure Applied AI Services | Latest public preview enhancements to Azure Form Recognizer | Azure Updates | In preview | October 2021 | | 1 |
| Azure Security Center: Public preview updates for September 2021 | Azure Updates | In preview | October 2021 | | 1 |
| General availability: Azure NetApp Files waitlist removal | Azure Updates | Launched | October 2021 | | 1 |
| Public preview of Azure NetApp Files Backup capability | Azure Updates | In preview | October 2021 | | 1 |
| Azure NetApp Files Datastores for Azure VMware Solution is coming soon | Azure Updates | In development | October 2021 | | 1 |