Azure Developer CLI Gains Deployment Preview Feature

The update allows users to inspect deployment operations before execution to avoid unintended cloud infrastructure changes.

Updated on Oct. 30, 2026 in Software

Isometric editorial illustration of stacked, opaque geometric blocks representing modular infrastructure, clean editorial illustration, flat color reproduction. — Microsoft has introduced a deployment preview feature for the Azure Developer CLI, allowing users to inspect configuration changes before they affect cloud infrastructure. AI Illustration. Upload story photo >

Live Poll

Do you plan to use pre-deployment inspection tools for your cloud service updates?

Microsoft has released a series of updates for the Azure Developer CLI, spanning versions 1.35.0 through 1.37.2. These updates introduce a preview feature for inspecting deployment operations before they are applied to cloud resources.

Why it matters

The addition of a dry-run capability for deployments reduces the risk of unintended infrastructure changes by allowing developers to verify service configuration before execution. This update standardizes error handling for developers using the CLI's environment and state Go APIs.

The update introduces the azd deploy --preview command, which simulates deployment for targets including App Service, Container Apps, Functions, Static Web Apps, Azure Kubernetes Service, and AI endpoints.

The players

Microsoft

A global technology company that manages the Azure cloud platform and its associated developer tools.

Azure Developer CLI

An open-source toolset designed to accelerate application development and infrastructure deployment on Azure.

The details

The preview function parses deployment operations and displays the intended configuration changes without modifying the actual Azure environment. Additionally, the new azd env unset command allows for the programmatic removal of environment keys, though it requires a --force flag to execute in noninteractive modes. Developers utilizing the environment and state Go APIs must update their code to accommodate breaking changes in how errors are handled during state operations.

October 30, 2026: Microsoft released the Azure Developer CLI updates.

The Tech Race

This release advances the Azure Developer CLI by introducing safety mechanisms common in infrastructure-as-code tooling. It reflects a broader effort to reduce deployment friction when managing complex cloud-native architectures.

Developers can immediately use the preview command to validate infrastructure changes across supported targets like Container Apps and Functions. Users relying on Go APIs for environment management should review the migration documentation to update their error-handling logic.

The takeaway

Developers should prioritize testing the new preview command to prevent configuration errors in production environments. Watch for future CLI updates regarding the migration of Go APIs to ensure your custom implementations remain compatible with evolving state management standards.