diff --git a/proposals/0192-non-exhaustive-enums.md b/proposals/0192-non-exhaustive-enums.md
index 534cef4c91..b67fb4e9e0 100644
--- a/proposals/0192-non-exhaustive-enums.md
+++ b/proposals/0192-non-exhaustive-enums.md
@@ -4,6 +4,7 @@
 * Author: [Jordan Rose](https://github.com/jrose-apple)
 * Review Manager: [Ted Kremenek](https://github.com/tkremenek)
 * Status: **Implemented (Swift 5.0)**
+* Upcoming Feature Flag: `NonfrozenEnumExhaustivity`
 * Implementation: [apple/swift#14945](https://github.com/apple/swift/pull/14945)
 * Previous revision: [1](https://github.com/swiftlang/swift-evolution/blob/a773d07ff4beab8b7855adf0ac56d1e13bb7b44c/proposals/0192-non-exhaustive-enums.md), [2 (informal)](https://github.com/jrose-swiftlang/swift-evolution/blob/57dfa2408fe210ed1d5a1251f331045b988ee2f0/proposals/0192-non-exhaustive-enums.md), [3](https://github.com/swiftlang/swift-evolution/blob/af284b519443d3d985f77cc366005ea908e2af59/proposals/0192-non-exhaustive-enums.md)
 * Pre-review discussion: [Enums and Source Compatibility](https://forums.swift.org/t/enums-and-source-compatibility/6460), with additional [orphaned thread](https://forums.swift.org/t/enums-and-source-compatibility/6651)