Terraform vs OpenTofu in 2026: I'm still on Terraform at work — and here's the honest math

TL;DR: Migrating from Terraform to OpenTofu is technically trivial. I did it this week — Terraform 1.14.7 to OpenTofu 1.11.5 — on a live AWS stack. Ten minutes, zero changes. The real question isn't can you migrate — it's when does the cost of not migrating start to hurt . Late 2023, HashiCorp changed Terraform's license from MPL to BSL. Most of us shrugged. The change had a specific target: companies building products on top of Terraform to compete with HashiCorp. If you were using it for internal infrastructure — personal projects, company deployments, client work — the practical impact was close to zero. The panic felt overblown. Then April 2024 arrived. IBM announced it was acquiring HashiCorp for $6.4 billion. The deal closed February 27, 2025. Now the conversation shifts. Why IBM changes the calculus HashiCorp controlling BSL is one thing. IBM controlling BSL is another. This isn't paranoia. IBM has a documented pattern. Ask anyone who ran CentOS in production. Red Hat — under IB