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Important
Azure App Service on Azure Stack Hub will retire on September 30, 2029. Customers should plan to migrate affected applications and workloads to Azure App Service in Azure before that date. New installations of App Service on Azure Stack Hub are no longer supported as of September 30, 2026. No new product releases, features, or enhancements will be made available. Existing supported deployments can continue to run and upgrade to the latest available release until retirement. After September 30, 2029, Microsoft support for Azure App Service on Azure Stack Hub will end.
Migrating from Azure App Service on Azure Stack Hub to Azure App Service in Azure enables organizations to take advantage of the latest platform innovations, broader geographical reach, enhanced security capabilities, and greater operational flexibility.
Why migrate?
Azure App Service in Azure receives continuous platform investments, new features, security enhancements, and support for emerging development frameworks. By migrating to Azure, organizations can modernize their application platform while reducing operational complexity associated with managing applications on infrastructure hosted within Azure Stack Hub.
Expanded hosting options
Azure App Service in Azure supports a broader range of application hosting models than Azure App Service on Azure Stack Hub.
Benefits include:
- NEW Managed Instance on Azure App Service for accelerating migration of Windows workloads
- Native Linux application hosting
- Linux and Windows custom containers
- Multi-container deployments
- Support for modern runtime versions
- Faster access to newly released frameworks and platform updates
- App Service Environment for complete single tenant isolation
Example scenarios
- Migrate Windows-hosted applications to Linux for lower operating costs, for example PHP, Java, Node.js, or Python.
- Deploy custom containerized applications without managing Kubernetes infrastructure.
- Host mixed Windows and Linux application portfolios on a single managed platform.
Global Azure region availability
Azure App Service can be deployed in Azure regions around the world, providing greater flexibility for application placement.
Benefits include:
- Deploy applications closer to users
- Meet data residency requirements
- Improve disaster recovery options
- Reduce application latency
- Support multi-region architectures
Organizations are no longer constrained by the physical location of their Azure Stack Hub deployment.
Advanced scaling capabilities
Azure App Service provides more flexible and scalable hosting options compared to Azure App Service on Azure Stack Hub.
Benefits include:
- Larger scale-out limits
- Higher-capacity and more powerful Premium plans (Premium v3 and Premium v4), including Memory optimized plans (PmV3 and PmV4)
- Rapid scale operations
- Availability zone support
- Autoscaling based on performance metrics or customer defined rules (for example, scheduled scaling)
Enhanced networking capabilities
Azure App Service provides additional networking features for advanced application architectures.
Examples include:
- Private endpoints
- Regional VNET integration
- Azure Front Door integration
- Application Gateway integration
- Virtual WAN integration
- Multi-region traffic routing
Improved security and compliance options
Azure App Service enables organizations to secure their workloads using security best practices covering identity and access management, network security, data protection, logging, and monitoring and compliance and governance.
Identity and access management
- Microsoft Entra ID integration
- Managed identities
- Conditional access integration
Network security
- Private endpoints
- Access restrictions
- Web Application Firewall integration
- DDoS protection integration
Secrets management
- Azure Key Vault references
- Managed identity-based secret access
- Certificate lifecycle management
Monitoring and security operations
- Microsoft Defender for Cloud
- Azure Monitor
- Application Insights
- Log Analytics
- Security recommendations
Greater reliability and resiliency
Azure App Service enables organizations to build more resilient applications through:
- Availability zones
- Regional redundancy options
- Automated platform maintenance
- Built-in platform patching
- Azure Front Door global failover
- Geo-distributed architectures
Faster innovation and feature adoption
Azure App Service is a platform which is continually innovating, taking care of all the heavy lifting of building and running a high scale platform, so you can focus on creating great applications.
Examples include:
- New App Service Plan generations
- New runtime versions
- Enhanced deployment features
- Advanced observability integrations
- AI-enabled application scenarios
- New networking and security capabilities
Reduced operational overhead
Moving from App Service on Azure Stack Hub to Azure App Service reduces operational overhead by transferring platform maintenance, operating system updates, patching, scaling, and availability management to Microsoft. Operators no longer need to plan for platform lifecycle management and can instead focus on application and business requirements.
Benefits include:
- Reduced infrastructure lifecycle management
- Reduced capacity planning requirements
- Simplified disaster recovery planning
- Automated platform maintenance
- Consumption aligned to business growth
Migration outcome
| Area | Azure App Service Advantage |
|---|---|
| Hosting Platforms | Windows, Linux, and Containers |
| Regional Availability | Global Azure region footprint |
| Scale | Premium v3, Premium v4, and larger scale limits |
| Security | Private endpoints, Key Vault, managed identities, Defender |
| Networking | Advanced Azure networking integration |
| Reliability | Availability zones and multi-region architectures |
| Innovation | Fast access to new App Service capabilities |
| Operations | Reduced platform management overhead |
Key Azure App Service features not available in Azure Stack Hub
In summary here is a breakdown of key Azure App Service features and capabilities not available in Azure Stack Hub.
Application hosting and runtime features
| Feature | Azure App Service | App Service on Azure Stack Hub |
|---|---|---|
| Linux Web Apps | ✅ | ❌ |
| Linux code hosting | ✅ | ❌ |
| Built-in Linux runtimes | ✅ | ❌ |
| Custom Linux containers | ✅ | ❌ |
| Sidecar containers | ✅ | ❌ |
| Multi-container applications | ✅ | ❌ |
| Managed Instance on App Service | ✅ | ❌ |
| Latest runtime availability | ✅ | Limited |
| Rapid runtime updates | ✅ | Limited |
Scale and performance
| Feature | Azure App Service | App Service on Azure Stack Hub |
|---|---|---|
| Premium v4 plans | ✅ | ❌ |
| Availability zones | ✅ | ❌ |
| Large-scale regional deployments | ✅ | Limited |
| Advanced autoscale capabilities | ✅ | Limited |
| Latest hardware generations | ✅ | ❌ |
Networking
| Feature | Azure App Service | App Service on Azure Stack Hub |
|---|---|---|
| Private Endpoints | ✅ | ❌ |
| Azure Front Door integration | ✅ | ❌ |
| Global load balancing | ✅ | ❌ |
| Azure Virtual WAN Integration | ✅ | ❌ |
| Multi-region active-active architectures | ✅ | ❌ |
| Availability zone networking | ✅ | ❌ |
Security and compliance
| Feature | Azure App Service | App Service on Azure Stack Hub |
|---|---|---|
| Managed identities | ✅ | ❌ |
| Key Vault references | ✅ | ❌ |
| Customer managed keys | ✅ | ❌ |
| Microsoft Defender integration | ✅ | ❌ |
| Conditional access integration | ✅ | Limited |
| Private endpoint security | ✅ | ❌ |
Global reach and reliability
| Feature | Azure App Service | App Service on Azure Stack Hub |
|---|---|---|
| Global Azure regions | ✅ | ❌ |
| Cross-region disaster recovery | ✅ | ❌ |
| Region pair support | ✅ | ❌ |
| Global traffic routing | ✅ | ❌ |
| Geo-distributed architectures | ✅ | ❌ |
AI and modernization Features
| Feature | Azure App Service | App Service on Azure Stack Hub |
|---|---|---|
| Azure Migrate integration | ✅ | ❌ |
| GitHub Copilot modernization experiences | ✅ | ❌ |
| AI-assisted migration tooling | ✅ | ❌ |
| Managed Instance migration support | ✅ | ❌ |
| Agentic migration workflows | ✅ | ❌ |
Note
Azure App Service continues to receive new platform investments, service innovations, runtime updates, and modernization capabilities. Azure App Service on Azure Stack Hub provides a subset of Azure App Service capabilities and follows a separate release cadence.