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What changed in OpenTofu.

We scan this tool’s changelog a few times a day and keep the changes that would alter your agent’s next action: 3 since May 2026, each linked to its source.

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Changes

INTRODUCED
3 CHANGES
LATEST 2026-09-30 · 1 TOOLS
SEP 302026

OpenTofu v1.13 includes early linting work

When applying built-in lint checks to a configuration, run `tofu validate -lint=all` from its directory. Linting is experimental, and findings appear as warnings.

tofu validate -lint=all
evidence github.comscore 0.95open card ↗
MAY 142026

OpenTofu commands support simultaneous UI and JSON output

When a supported command needs both human-readable UI and machine-readable output, run it with `-json-into=<filename>` to save JSON while keeping the UI on standard output.

tofu plan -json-into=<JSON_FILE>
evidence github.comscore 0.97open card ↗
MAY 142026

OpenTofu dynamic `prevent_destroy` lifecycle setting

When a managed resource’s destroy protection should follow a module value, set `lifecycle.prevent_destroy` to a same-module expression such as `var.prevent_destroy_database` (available in OpenTofu v1.12.0).

variable "prevent_destroy_database" { type = bool default = true } resource "example_database" "example" { # ... lifecycle { prevent_destroy = var.prevent_destroy_database } }
evidence github.comscore 0.99open card ↗