Terraform

NEW FEATURES:

• terraform 0.12checklist command detects and reports on some preparation steps that will make a subsequent Terraform 0.12 upgrade smoother. (#21241)

IMPROVEMENTS:

• provider/terraform: The terraform_remote_state data source is now able to read outputs from a state snapshot created by Terraform 0.12, to provide more flexibility when upgrading individual configurations to Terraform 0.12 in a decomposed environment. (#21226)
• backend/s3: Support DynamoDB, IAM, and STS endpoint configurations (#20659)
• backend/s3: Support for AWS regions eu-north-1 and us-gov-east-1 (#20659)
• backend/s3: Enhance retry logic and provide max_retries configuration for retry attempts (#20659)
• backend/s3: Enhance S3 NoSuchBucket error to include additional information (#20659)
• backend/s3: Remove unused EC2 platform and AWS Account ID lookup, and deprecate equivalent skip_get_ec2_platforms and skip_requesting_account_id arguments (#20659)
• backend/remote: Do not unlock a workspace after a failed state upload (#21148)

BUG FIXES:

• backend/remote: Ensure variables are loaded correctly when using terraform console (#20858)
• backend/remote: Make sure workspaces are correctly uploaded (#20953)
• backend/remote: Fix panic when loading cached configuration with 0.12 backend schema (#21199)
• core: Fix a potential crash when loading module manifests with Windows paths (#20812)
• core: Make sure UIInput keeps working after being canceled (#21140)
• core: Always try to select a workspace after initialization (#21230)