Terraform 1.15 Closes Gap to OpenTofu on Dynamic Sources and Deprecation
7.9 relevance
Score Breakdown
technical depth 8
novelty 7
actionability 9
community 7
strategic 7
personal 9
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Terraform 1.15 features closing gap to OpenTofu, highly actionable for IaC and platform engineering.
Summary
HashiCorp released Terraform 1.15 with dynamic module sources via a new `const` attribute on variables, enabling environment-specific registries and version pins without module duplication. The release also adds a `deprecated` attribute for variables and outputs, a `convert` function for explicit type coercion, type constraints on output blocks, and native Windows ARM64 support. These features close a nearly two-year gap with OpenTofu, which shipped equivalent early variable evaluation in version 1.8.0 (August 2024) and refined it in 1.9.