Version 9.1.28-dev

Change-Id: I8a62b67df57fa5970a01710befb32f9ec8c95ff2

src/main/java/com/android/tools/r8/Version.java

diff --git a/src/main/java/com/android/tools/r8/Version.java b/src/main/java/com/android/tools/r8/Version.java
index d802bf8..de5d9ac 100644
--- a/src/main/java/com/android/tools/r8/Version.java
+++ b/src/main/java/com/android/tools/r8/Version.java
@@ -15,7 +15,7 @@
 
   // 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 = "9.1.27-dev";
+  public static final String LABEL = "9.1.28-dev";
 
   private Version() {
   }