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The Terraform updates since 1.6 that matter day to day are declarative import blocks, which make adopting existing infrastructure a reviewable pull request; a native test framework written in HCL, with no Go required; and ephemeral values in 1.9, which keep dynamic secrets out of state. Version 1.6 also arrived under the Business Source License.
OpenTofu reached GA in January 2024 as an open-source Terraform fork under MPL 2.0, with Linux Foundation governance. Six months later, it is a stable drop-in replacement: same configs, same state format, same CLI. Version 1.7 adds native state encryption, the first real technical edge over Terraform.
OpenTofu is the community fork of Terraform, born in 2023 after HashiCorp switched to the Business Source License. With full file compatibility and Linux Foundation governance, it is the legally safe alternative for organisations with strict open-source policies or for those building products on Terraform.
