Merge pull request #3908 from buthed010203/patch-2

Delete old bleeding edge builds on update

core/src/mindustry/net/BeControl.java

@@ -49,6 +49,8 @@ public class BeControl{
             try{
                 Fi dest = Fi.get(System.getProperty("becopy"));
                 Fi self = Fi.get(BeControl.class.getProtectionDomain().getCodeSource().getLocation().toURI().getPath());
+                
+                for(Fi file : self.parent().findAll(f -> !f.equals(self))) file.delete();
 
                 self.copyTo(dest);
             }catch(Throwable e){