The Terraform Plugin SDK is a standalone Go module that allows developers to create Terraform providers without importing the entire Terraform Core codebase. This change makes provider development easier and safer, while maintaining the excellent practitioner experience that Terraform is known for. The SDK extracts the implicit SDK from Terraform Core into a separate module, which reduces the barrier to entry for creating Terraform providers by eliminating unnecessary dependencies. With the release of the Terraform Plugin SDK v1.0.0, developers can now import the explicitly available API surface for Terraform provider functionality, making it easier to create and maintain high-quality providers.