From a71e00397f3f00baf5883f9ff41a019bb86d54b1 Mon Sep 17 00:00:00 2001
From: Matthew Chen <charlesmchen@gmail.com>
Date: Tue, 27 Feb 2018 16:19:21 -0500
Subject: [PATCH] Fix build break related to Swift 4.1 syntax.

---
 .../ExperienceUpgrades/ExperienceUpgradeFinder.swift            | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Signal/src/environment/ExperienceUpgrades/ExperienceUpgradeFinder.swift b/Signal/src/environment/ExperienceUpgrades/ExperienceUpgradeFinder.swift
index 59f9db8f0..c4789133c 100644
--- a/Signal/src/environment/ExperienceUpgrades/ExperienceUpgradeFinder.swift
+++ b/Signal/src/environment/ExperienceUpgrades/ExperienceUpgradeFinder.swift
@@ -73,7 +73,7 @@ class ExperienceUpgradeFinder: NSObject {
             // introducingProfiles,
             // introducingReadReceipts,
             configurableNotificationAudio
-        ].compactMap { $0 }
+        ].flatMap { $0 }
     }
 
     // MARK: - Instance Methods