Terraform Stacks on Azure: Is it ready to replace Workspaces?

This article examines HashiCorp's Terraform Stacks, released at HashiConf 2025, and evaluates its readiness to replace the traditional Workspace pattern for Azure deployments. It explains Stacks' new concepts like Components and Deployments, and how they simplify multi-subscription setups, cross-workspace dependencies, and ordered rollouts. The author, a DevOps VP, provides a technical comparison highlighting pain points with Workspaces on Azure and how Stacks addresses them, including OIDC federation and native dependency management. The article is a technical guide and opinion piece relevant to IT professionals managing infrastructure as code.