Which Terraform version is used?

[calebAtIspot]

I read https://www.runatlantis.io/docs/terraform-versions.html but I'm still not clear on which terraform version is used.

Let's say we have no version specified in atlantis.yaml and terraform code just specifies anything greater than v1. Let's say one is using the official atlantis image with v1.2 of Terraform baked inside it. Would v1.2 be used or would it download v1.8?

I think 1.2 would be used but I want to double-check.

Relevant: https://github.com/runatlantis/atlantis/blob/main/server/core/runtime/run_step_runner.go#L31

[peikk0]

By default it fetches and uses the latest version that matches your version constraints, so in your case with terraform { required_version = ">= 1" } it would use v1.8.4 today.

[FernandoMiguel]

actually, due to a bug, until fixed, it will only pull up to 1.8.1