Like many other companies, HashiCorp has dropped the open source approach that gave its products their start for the source-available Business Source License (BSL).
HashiCorp is moving its products previously licensed as Open Source away from it to Business Source License (BSL) moving forward
Terraform is a popular Infrastructure as Code tool used for provisioning cloud resources like AWS, Azure among others
Terraform version 1.5.5 and earlier are still open source
there is a push for a community maintained open source fork if this decision is not reversed, OpenTF