# TFNFR25 - Verified Modules Requirements

Module Specification for the Azure Verified Modules (AVM) program

ID: TFNFR25 - Category: Code Style - Verified Modules Requirements The terraform.tf file MUST only contain one terraform block.
The first line of the terraform block MUST define a required_version property for the Terraform CLI.
The required_version property MUST include a constraint on the minimum version of the Terraform CLI. Previous releases of the Terraform CLI can have unexpected behavior.
The required_version property MUST include a constraint on the maximum major version of the Terraform CLI. Major version releases of the Terraform CLI can introduce breaking changes and MUST be tested.
The required_version property constraint SHOULD use the ~> #.# or the >= #.#.#, < #.#.# format.
Note: You can read more about Terraform version constraints in the documentation.
Example terraform.tf file:
terraform { required_version = "~> 1.6" required_providers { azurerm = { source = "hashicorp/azurerm" version = "~> 3.11" } } } 

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Source: https://raw.githubusercontent.com/Azure/Azure-Verified-Modules/refs/heads/main/docs/content/specs-defs/includes/terraform/shared/non-functional/TFNFR25.md
Last Modified: 0001-01-01