* Backend/S3: The default of `use_legacy_workflow` changed to `false` and is now deprecated. The S3 backend will follow the same behavior as AWS CLI and SDKs for credential search, preferring backend configuration over environment variables. To support the legacy credential search workflow, you can set this option as `true`. It'll be completely removed in a future minor version.
* Managing large local terraform.tfstate files is now much faster. ([#579](https://github.com/opentofu/opentofu/pull/579))
- Previously, every call to state.Write() would also Persist to disk. This was not following the intended API and had longstanding TODOs in the code.
- This change fixes the local state filesystem interface to function as the statemgr API describes.
- A possible side effect is that a hard crash mid-apply will no longer have a in-progress state file to reference. This matches the other state managers.
*`tofu test` resources cleanup at the end of tests changed to use simple reverse run block order. ([#1043](https://github.com/opentofu/opentofu/pull/1043))
* Fix `tofu show` and `tofu state show` not working with state files referencing Terraform registry providers in some instances ([#1141](https://github.com/opentofu/opentofu/pull/1141))