The second review of SE-0487: Nonexhaustive Enums has concluded and the proposal has been accepted.
The language steering group agreed that bringing the ability to require nonexhuastive switching over enums was an important feature for packages even when those packages were not necessarily ABI-stable, and would improve the overall health of the ecosystem. The primary concerns raised during the first review were related to the naming of the attribute, and the LSG was happy that the newly proposed names addressed these concerns.
As a result of the renaming of the attribute, the proposal title has been renamed accordingly.
Thank you for everyone who participated in the pitch and review!
Ben Cohen
Review Manager