Assume everything can change. This document is not complete yet and was created only for the purpose of conversation outside of the document.
Assume everything can change.
Assume anything could still change, but limited change should be expected.
Change is extremely unlikely. A high threshold will be used, and a change will only occur because of some truly critical issue being identified during the public review cycle. Any other desired or needed changes can be the subject of a follow-on new extension.
No changes are allowed. Any desired or needed changes can be the subject of a follow-on new extension. Ratified extensions are never revised