According to Security Review Test Info,
"Starting March 1, 2017 full Locker Compliance will be mandatory to submit for the security review. Therefore, the Developer Edition test environment provided for the security review must have Locker Service enabled. Enterprise edition and sandbox orgs will not be acceptable test environments starting March 1, 2017 "
We generally test on a "enterprise" or "partner enterprise" org created through environment hub. Will this environment not be acceptable for security review?
Do we need to create a free developer org for security review?