diff --git a/core/src/io/anuke/mindustry/io/SaveIO.java b/core/src/io/anuke/mindustry/io/SaveIO.java
index cbd9a3a803..ccef23d108 100644
--- a/core/src/io/anuke/mindustry/io/SaveIO.java
+++ b/core/src/io/anuke/mindustry/io/SaveIO.java
@@ -16,7 +16,7 @@ import java.util.zip.InflaterInputStream;
 import static io.anuke.mindustry.Vars.*;
 
 public class SaveIO{
-    public static final IntArray breakingVersions = IntArray.with(47, 48, 49, 50, 51, 52);
+    public static final IntArray breakingVersions = IntArray.with(47, 48, 49, 50, 51, 52, 53, 54, 55, 56);
     public static final IntMap<SaveFileVersion> versions = new IntMap<>();
     public static final Array<SaveFileVersion> versionArray = Array.with(
         new Save16()
diff --git a/core/src/io/anuke/mindustry/maps/Sectors.java b/core/src/io/anuke/mindustry/maps/Sectors.java
index 965bbccc1a..d82989aa01 100644
--- a/core/src/io/anuke/mindustry/maps/Sectors.java
+++ b/core/src/io/anuke/mindustry/maps/Sectors.java
@@ -69,6 +69,16 @@ public class Sectors{
         return grid.get(Bits.getLeftShort(position), Bits.getRightShort(position));
     }
 
+    /**Tries to a sector in a specific direciton, specified by expandX and expandY.
+     * If a sector is in that direction, this method will return false (failure)
+     * @param sector the sector to expand
+     * @param expandX spaces in X coordinate to expand, can be negative
+     * @param expandY spaces in Y coordinate to expand, can be negative*/
+    public boolean expandSector(Sector sector, int expandX, int expandY){
+
+        return false;
+    }
+
     /**Unlocks a sector. This shows nearby sectors.*/
     public void completeSector(int x, int y){
         createSector(x, y);