Update appstream file

6787d0dc · Halla Rempt · 7ca28ffc · 6787d0dc
Commit 6787d0dc authored Oct 04, 2018 by Halla Rempt
--- a/krita/org.kde.krita.appdata.xml
+++ b/krita/org.kde.krita.appdata.xml
@@ -253,6 +253,6 @@
    <binary>krita</binary>
  </provides>
  <releases>
-    <release date="2018-01-11" version="4.0.0.51 (beta 1)"/>
+    <release date="2018-10-18" version="4.2.0-preview"/>
  </releases>
 </component>