From f2bbac42b947f2f01fe101eef4e9f1941c440acb Mon Sep 17 00:00:00 2001
From: M66B <M66B@users.noreply.github.com>
Date: Sat, 30 Apr 2022 11:35:09 +0200
Subject: [PATCH] Backward compatibility

---
 app/src/main/java/eu/faircode/email/ApplicationEx.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/src/main/java/eu/faircode/email/ApplicationEx.java b/app/src/main/java/eu/faircode/email/ApplicationEx.java
index 33102a437b..2bcf90031f 100644
--- a/app/src/main/java/eu/faircode/email/ApplicationEx.java
+++ b/app/src/main/java/eu/faircode/email/ApplicationEx.java
@@ -614,6 +614,10 @@ public class ApplicationEx extends Application
             boolean cards = prefs.getBoolean("cards", true);
             if (!cards)
                 editor.remove("view_padding");
+        } else if (version < 1888) {
+            int class_min_difference = prefs.getInt("class_min_difference", 50);
+            if (class_min_difference == 0)
+                editor.putBoolean("classification", false);
         }
 
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && !BuildConfig.DEBUG)