Version 8.3.20-dev

Change-Id: Icc87271a746c78a2a072f01372b32a427ca6537e
diff --git a/src/main/java/com/android/tools/r8/Version.java b/src/main/java/com/android/tools/r8/Version.java
index f68a618..ce3c3eb 100644
--- a/src/main/java/com/android/tools/r8/Version.java
+++ b/src/main/java/com/android/tools/r8/Version.java
@@ -13,7 +13,7 @@
 
   // This field is accessed from release scripts using simple pattern matching.
   // Therefore, changing this field could break our release scripts.
-  public static final String LABEL = "8.3.19-dev";
+  public static final String LABEL = "8.3.20-dev";
 
   private Version() {
   }