## 1.15.1 (May 1, 2026)


BUG FIXES:

* Fixed crash when configuration has an invalid `action_trigger` nested block in `data` or `ephemeral` lifecycle blocks ([#38402](https://github.com/hashicorp/terraform/issues/38402))

* validate: Removed validation of attributes inside `backend` blocks due to incompatibility with workflows using the `-backend-config` flag. ([#38466](https://github.com/hashicorp/terraform/issues/38466))

* Fix non-const variable checks on `init` ([#38470](https://github.com/hashicorp/terraform/issues/38470))

* Avoid warnings in 'terraform output -raw' ([#38487](https://github.com/hashicorp/terraform/issues/38487))

* Ignore undeclared variable values from the cloud backend ([#38490](https://github.com/hashicorp/terraform/issues/38490))

* Fix panic for types modules with no expanded instances ([#38491](https://github.com/hashicorp/terraform/issues/38491))

* Fixed "unknown provider function" errors occurring during init ([#38472](https://github.com/hashicorp/terraform/issues/38472))

* init: Fixed a bug that impacted use of provider pre-releases during init ([#38496](https://github.com/hashicorp/terraform/issues/38496))


