Initial 1.14.3 update.

src/main/java/net/minecraftforge/common/DimensionManager.java

@@ -198,11 +198,11 @@ public class DimensionManager
     @SuppressWarnings("deprecation")
     public static ServerWorld initWorld(MinecraftServer server, DimensionType dim)
     {
-        Validate.isTrue(dim != DimensionType.OVERWORLD, "Can not hotload overworld. This must be loaded at all times by main Server.");
+        Validate.isTrue(dim != DimensionType.field_223227_a_, "Can not hotload overworld. This must be loaded at all times by main Server.");
         Validate.notNull(server, "Must provide server when creating world");
         Validate.notNull(dim, "Must provide dimension when creating world");
 
-        ServerWorld overworld = getWorld(server, DimensionType.OVERWORLD, false, false);
+        ServerWorld overworld = getWorld(server, DimensionType.field_223227_a_, false, false);
         Validate.notNull(overworld, "Cannot Hotload Dim: Overworld is not Loaded!");
 
         @SuppressWarnings("resource")

src/main/java/net/minecraftforge/common/ForgeHooks.java

@@ -802,7 +802,7 @@ public class ForgeHooks
     }
 
     @Nullable
-    public static LootTable loadLootTable(Gson gson, ResourceLocation name, String data, boolean custom, LootTableManager lootTableManager)
+    public static LootTable loadLootTable(Gson gson, ResourceLocation name, JsonObject data, boolean custom, LootTableManager lootTableManager)
     {
         Deque<LootTableContext> que = lootContext.get();
         if (que == null)
@@ -1151,4 +1151,10 @@ public class ForgeHooks
         }
         return id;
     }
+
+    public static boolean canEntityDestroy(World world, BlockPos pos, LivingEntity entity)
+    {
+        BlockState state = world.getBlockState(pos);
+        return ForgeEventFactory.getMobGriefingEvent(world, entity) && state.canEntityDestroy(world, pos, entity) && ForgeEventFactory.onEntityDestroyBlock(entity, pos, state);
+    }
 }

src/main/java/net/minecraftforge/common/extensions/IForgeDimension.java

@@ -290,7 +290,7 @@ public interface IForgeDimension
      */
     default boolean shouldMapSpin(String entity, double x, double z, double rotation)
     {
-        return getDimension().getType() == DimensionType.NETHER;
+        return getDimension().getType() == DimensionType.field_223228_b_;
     }
 
     /**

src/main/java/net/minecraftforge/common/extensions/IForgeWorldType.java

@@ -25,6 +25,7 @@ import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.screen.CreateBuffetWorldScreen;
 import net.minecraft.client.gui.screen.CreateFlatWorldScreen;
 import net.minecraft.client.gui.screen.CreateWorldScreen;
+import net.minecraft.world.IWorld;
 import net.minecraft.world.World;
 import net.minecraft.world.WorldType;
 import net.minecraft.world.gen.ChunkGenerator;
@@ -39,7 +40,6 @@ import net.minecraft.world.gen.layer.ZoomLayer;
 import net.minecraft.world.gen.layer.LayerUtil;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
-import net.minecraftforge.fml.client.config.IArrayEntry;
 
 public interface IForgeWorldType
 {
@@ -70,7 +70,7 @@ public interface IForgeWorldType
             mc.displayGuiScreen(new CreateBuffetWorldScreen(gui, gui.chunkProviderSettingsJson));
     }
 
-    default boolean handleSlimeSpawnReduction(java.util.Random random, World world)
+    default boolean handleSlimeSpawnReduction(java.util.Random random, IWorld world)
     {
         return this == WorldType.FLAT ? random.nextInt(4) != 1 : false;
     }

src/main/java/net/minecraftforge/event/ForgeEventFactory.java

@@ -64,6 +64,7 @@ import net.minecraft.util.math.RayTraceResult;
 import net.minecraft.util.text.ChatType;
 import net.minecraft.util.text.ITextComponent;
 import net.minecraft.world.Explosion;
+import net.minecraft.world.GameRules;
 import net.minecraft.world.IWorld;
 import net.minecraft.world.World;
 import net.minecraft.world.ServerWorld;
@@ -670,7 +671,7 @@ public class ForgeEventFactory
         MinecraftForge.EVENT_BUS.post(event);
 
         Result result = event.getResult();
-        return result == Result.DEFAULT ? world.getGameRules().getBoolean("mobGriefing") : result == Result.ALLOW;
+        return result == Result.DEFAULT ? world.getGameRules().func_223586_b(GameRules.field_223599_b) : result == Result.ALLOW;
     }
 
     public static boolean saplingGrowTree(IWorld world, Random rand, BlockPos pos)