---
version: "v1.0.5"
category: "new-features"
---

import { Aside } from '@astrojs/starlight/components'

#### Full `.terraform.lock.hcl` files from the provider cache server

When the [provider cache server](/features/caching/provider-cache-server) is used against the OpenTofu provider registry, Terragrunt now writes `.terraform.lock.hcl` files containing `h1:` hashes for every platform the registry supports. A single `terragrunt init` produces a lock file that works on every platform, removing the need to run `tofu providers lock -platform=...` separately for each target architecture.

```hcl
provider "registry.opentofu.org/hashicorp/null" {
  version     = "3.2.2"
  constraints = "3.2.2"
  hashes = [
    "h1:+1mRmfyz6oA00IhrrSkHK3h/Mdh032x2p0F6OMdMo5s=",
    "h1:FjLTqvaaYo+vHN8pHZB1cOwEGiNzOj+I9kQyHmr9/7o=",
    # ... one entry per supported platform ...
    "zh:00e5877d19fb1c1d8c4b3536334a46a5c86f57146fd115c7b7b4b5d2bf2de86d",
    # ... one entry per supported platform ...
  ]
}
```

The hashes come from the registry's per-platform download response. When the registry does not supply them (for example, a third-party registry that has not adopted the field), Terragrunt falls back to its previous behavior of writing an `h1:` hash for the current platform plus `zh:` hashes for every platform listed in the shasums document.

<Aside type="tip" title="Thanks to the OpenTofu team">
  This feature builds on work done by the OpenTofu team to expose per-platform hashes directly from the OpenTofu provider registry. Starting with [OpenTofu 1.12](https://opentofu.org/), `tofu init` populates `.terraform.lock.hcl` with hashes for every supported platform out of the box, with no `tofu providers lock` invocation required. Users on older OpenTofu versions still get the same lock files when running through Terragrunt's [provider cache server](https://docs.terragrunt.com/features/caching/provider-cache-server/), but upgrading to 1.12 is the easiest way to get the same behavior everywhere, including when using the [automatic provider cache dir](https://docs.terragrunt.com/features/caching/auto-provider-cache-dir/).
</Aside>
