Infrastructure Briefing — HashiCorp Terraform 1.0

Executive briefing: During HashiConf Europe on 8 June 2021, HashiCorp announced Terraform 1.0. The release delivers a long-term compatibility contract for configuration syntax, provider schemas, and Terraform Cloud APIs so platform teams can standardize provisioning pipelines.

Key commitments

• Stability promise. Terraform 1.x guarantees state file, provider, and module compatibility across the major version, reducing upgrade risk.
• CLI and Cloud parity. Terraform CLI 1.0 and Terraform Cloud/Enterprise reach API alignment for remote execution and policy-as-code workflows.
• Refined workflow integrations. Native support for Terraform Cloud workspaces, cost estimation, and run tasks anchors governance controls.
• Provider ecosystem maturity. Verified provider programs and registry enhancements expand supply-chain assurance for infrastructure modules.

Implementation guidance

• Baseline Terraform versions across CI runners, Terraform Cloud workspaces, and local developer tooling at 1.0 or later.
• Review HashiCorp Compatibility Promises to codify upgrade playbooks and compliance sign-off procedures.
• Inventory in-house modules to ensure they target >=1.0 required providers and follow registry verification criteria.

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