diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/GamesInProgress.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/GamesInProgress.java
index 886282309..6701d609a 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/GamesInProgress.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/GamesInProgress.java
@@ -102,8 +102,8 @@ public class GamesInProgress {
 				info.slot = slot;
 				Dungeon.preview(info, bundle);
 				
-				//saves from before v0.7.3b are not supported
-				if (info.version < ShatteredPixelDungeon.v0_7_3b) {
+				//saves from before v0.7.5e are not supported
+				if (info.version < ShatteredPixelDungeon.v0_7_5e) {
 					info = null;
 				}
 
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/ShatteredPixelDungeon.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/ShatteredPixelDungeon.java
index 042b44b77..62ee2b884 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/ShatteredPixelDungeon.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/ShatteredPixelDungeon.java
@@ -32,29 +32,16 @@ import com.watabou.utils.PlatformSupport;
 public class ShatteredPixelDungeon extends Game {
 
 	//variable constants for specific older versions of shattered, used for data conversion
-	//versions older than v0.7.3b are no longer supported, and data from them is ignored
-	public static final int v0_7_3b = 349;
-	public static final int v0_7_4c = 362;
+	//versions older than v0.7.5e are no longer supported, and data from them is ignored
 	public static final int v0_7_5e = 382;
 
-	public static final int v0_8_0  = 412;
+	public static final int v0_8_0b = 414;
 	public static final int v0_8_1a = 422;
 	public static final int v0_8_2  = 447;
 	
 	public ShatteredPixelDungeon( PlatformSupport platform ) {
 		super( sceneClass == null ? WelcomeScene.class : sceneClass, platform );
 
-		//v0.7.5
-		com.watabou.utils.Bundle.addAlias(
-				com.shatteredpixel.shatteredpixeldungeon.levels.rooms.sewerboss.SewerBossEntranceRoom.class,
-				"com.shatteredpixel.shatteredpixeldungeon.levels.rooms.standard.SewerBossEntranceRoom" );
-		com.watabou.utils.Bundle.addAlias(
-				com.shatteredpixel.shatteredpixeldungeon.levels.OldPrisonBossLevel.class,
-				"com.shatteredpixel.shatteredpixeldungeon.levels.PrisonBossLevel" );
-		com.watabou.utils.Bundle.addAlias(
-				com.shatteredpixel.shatteredpixeldungeon.actors.mobs.OldTengu.class,
-				"com.shatteredpixel.shatteredpixeldungeon.actors.mobs.Tengu" );
-
 		//v0.8.0
 		com.watabou.utils.Bundle.addAlias(
 				com.shatteredpixel.shatteredpixeldungeon.actors.mobs.ArmoredBrute.class,
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/Level.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/Level.java
index 1c91682cf..cabd3f2fc 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/Level.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/Level.java
@@ -294,8 +294,8 @@ public abstract class Level implements Bundlable {
 
 		version = bundle.getInt( VERSION );
 		
-		//saves from before v0.7.3b are not supported
-		if (version < ShatteredPixelDungeon.v0_7_3b){
+		//saves from before v0.7.5e are not supported
+		if (version < ShatteredPixelDungeon.v0_7_5e){
 			throw new RuntimeException("old save");
 		}