XSOAR 8 has introduced support for a built-in content repository.
By default flow, if you were using a remote content repository(Dev to Prod by Git Repos) in XSOAR 6, your tenant will be configured to utilise a
built-in repository.
Per your answer to the previous question, if you prefer to continue using a private repository instead, please specify a new branch name that will be generated on your Git Repos as part of the migration process. It's important to note that this branch should not exist in your repository, please do not create this new branch as it will be created during the migration process.
The built-in repository doesn't accommodate multiple branches and consistently employs the same branch. Therefore, if your development and production tenants are not using the same/single branch, you must provide new branch names for your XSOAR 8 tenants.