- committee approval
- two implementations
- significant in-the-field experience
- ecma262 PR approved
- prepare ecma262 PR
- committee approval
- merge test262 tests
- write test262 tests
- receive implementer feedback
- resolve all normative stage 4 issues
- committee approval
- spec editor signoff (@tc39/ecma262-editors)
- spec reviewer signoff
- resolve all normative issues
- receive implementer feedback
- committee approval
- spec reviewers selected
- spec text written
- committee approval