terraform-module-versions
terraform-module-versions is a CLI tool that checks Terraform code for module updates. Distributed as a single binary with no dependencies, it runs on Linux, macOS, and Windows. It scans Terraform source files to detect external modules and reports available updates by comparing current versions, version constraints, and the latest matching releases. Supported module sources include Git repositories with SemVer tags using git::, github.com, and SSH-style URLs, as well as Terraform Registry modules for both public and private registries. The tool outputs results by default as Markdown tables and also supports JSONL, JSON, and JUnit XML formats. It includes commands for listing modules with their current versions and constraints, checking for updates, optionally authenticating with a GitHub token, and targeting specific modules. Use cases include keeping Terraform infrastructure code up to date, auditing module dependencies in CI pipelines, and generating reports on outdated modules across projects.