diff --git a/build.properties b/build.properties
index a79f5ae47..4979422ad 100644
--- a/build.properties
+++ b/build.properties
@@ -3,18 +3,18 @@
 mod_id=passableleaves
 mod_name=Passable Leaves
 mod_desc=Minecraft core mod that makes leaves passable.
-mod_version=4.1.0.0
-mc_version=1.10.2
+mod_version=5.1.0.0
+mc_version=1.11.2
 mod_url=https://github.com/Team-RTG/PassableLeaves
 mod_author="Team RTG"
-mod_creds="Based on code donated by HellFirePvP for the Appalachia mod."
+mod_creds=Based on code donated by HellFirePvP for the Appalachia mod.
 mod_logo=assets/passableleaves/logo.png
-mcf_version=12.18.2.2099
-mcf_minver=12.18.1.2011
+mcf_version=13.20.0.2315
+mcf_minver=13.20.0.2228
 mcf_maxver=
 # mcf_suffix is the branch suffix (without '-') on the Forge version when it's not the default branch in the Forge repo
 # This may be the same as mc_version, eg Non-default: 1.9.4-12.18.2.2099-1.9.4, Default: 1.9.4-12.18.2.2099
 mcf_suffix=
-mcp_mappings=snapshot_nodoc_20161027
+mcp_mappings=stable_nodoc_32
 run_dir=run
-package_base=org.teamrtg
+package_base=org.teamrtg
\ No newline at end of file
diff --git a/etc/config/PassableLeaves/passableleaves.cfg b/etc/config/PassableLeaves/passableleaves.cfg
index f9990844e..7d98fda20 100644
--- a/etc/config/PassableLeaves/passableleaves.cfg
+++ b/etc/config/PassableLeaves/passableleaves.cfg
@@ -1,28 +1,27 @@
 # Configuration file
 
-debugging {
-    # WARNING: This should only be enabled if you know what you're doing.
-    #  [default: false]
-    B:"Enable Debugging"=false
-}
-
-
 leaves {
-    # fallDistance
-    #  [default: 0]
-    S:fallDistance=0
-
-    # motionX
-    #  [default: 0.75]
-    S:motionX=0.75
-
-    # motionY
-    #  [default: 0.75]
-    S:motionY=0.75
-
-    # motionZ
-    #  [default: 0.75]
-    S:motionZ=0.75
+    # Higher values = more damage taken upon falling onto leaves.
+    # For example, most blocks have a value of 1.0 (full damage).
+    # Hay blocks have a value of 0.2 (20% damage).
+    # Slime blocks & cobwebs have a value of 0.0 (no damage); 
+    #  [range: 0.0 ~ 1.0, default: 0.0]
+    S:"Amount of fall distance to keep upon falling onto leaves."=0.0
+
+    # Higher values = faster speed. Set to 1.0 to pass through leaves without slowing down.
+    # You normally want this to be the same as the rate of speed along the Z axis.
+    #  [range: 0.0 ~ 1.0, default: 0.75]
+    S:"Rate of speed when passing through leaves along the X axis."=0.75
+
+    # Higher values = faster speed. Set to 1.0 to pass through leaves without slowing down.
+    # This setting affects how fast you fall through leaves.
+    #  [range: 0.0 ~ 1.0, default: 0.75]
+    S:"Rate of speed when passing through leaves along the Y axis."=0.75
+
+    # Higher values = faster speed. Set to 1.0 to pass through leaves without slowing down.
+    # You normally want this to be the same as the rate of speed along the X axis.
+    #  [range: 0.0 ~ 1.0, default: 0.75]
+    S:"Rate of speed when passing through leaves along the Z axis."=0.75
 }
 
 
diff --git a/src/main/java/passableleaves/PassableLeaves.java b/src/main/java/passableleaves/PassableLeaves.java
index 667b9ef9b..bd7524d84 100644
--- a/src/main/java/passableleaves/PassableLeaves.java
+++ b/src/main/java/passableleaves/PassableLeaves.java
@@ -21,7 +21,7 @@
     modid = ModInfo.MOD_ID,
     name = ModInfo.MOD_NAME,
     version = ModInfo.MOD_VERSION,
-    dependencies = "required-after:Forge@[" + ModInfo.MCF_MINVER + "," + ModInfo.MCF_MAXVER + ")",
+    dependencies = "required-after:forge@[" + ModInfo.MCF_MINVER + "," + ModInfo.MCF_MAXVER + ")",
     acceptableRemoteVersions = "*"
 )
 public class PassableLeaves {
diff --git a/src/main/java/passableleaves/core/PLCore.java b/src/main/java/passableleaves/core/PLCore.java
index 1dbcb506c..ade70d551 100644
--- a/src/main/java/passableleaves/core/PLCore.java
+++ b/src/main/java/passableleaves/core/PLCore.java
@@ -5,6 +5,8 @@
 import net.minecraftforge.fml.common.FMLLog;
 import net.minecraftforge.fml.relauncher.IFMLLoadingPlugin;
 
+import passableleaves.reference.ModInfo;
+
 /**
  * This class was originally written by HellFirePvP for the Appalachia addon for RTG.
  * It was extracted from Appalachia by WhichOnesPink so that it could be a standalone mod.
@@ -14,7 +16,7 @@
  * Date: 12.02.2017 / 15:23
  */
 @IFMLLoadingPlugin.Name(value = "PLCore")
-@IFMLLoadingPlugin.MCVersion(value = "1.10.2")
+@IFMLLoadingPlugin.MCVersion(value = ModInfo.MC_VERSION)
 @IFMLLoadingPlugin.TransformerExclusions({"passableleaves.core"})
 @IFMLLoadingPlugin.SortingIndex(1001)
 public class PLCore implements IFMLLoadingPlugin {
@@ -27,7 +29,7 @@ public PLCore() {
 
     @Override
     public String[] getASMTransformerClass() {
-        return new String[0];
+        return new String[] {"passableleaves.core.PLTransformer"};
     }
 
     @Override
@@ -47,7 +49,7 @@ public void injectData(Map<String, Object> data) {
 
     @Override
     public String getAccessTransformerClass() {
-        return "passableleaves.core.PLTransformer";
+        return null;
     }
 
-}
+}
\ No newline at end of file
diff --git a/src/main/java/passableleaves/core/PLTransformer.java b/src/main/java/passableleaves/core/PLTransformer.java
index 0ef8115e4..b235e7b0d 100644
--- a/src/main/java/passableleaves/core/PLTransformer.java
+++ b/src/main/java/passableleaves/core/PLTransformer.java
@@ -34,7 +34,7 @@ public byte[] transform(String name, String transformedName, byte[] basicClass)
 
         //TODO keep those updated with minecraft updates as SRG names or parameters may change!
         String methodNameGetCollisionBox = PLCore.isDebofEnabled ? "func_180646_a" : "getCollisionBoundingBox";
-        String methodDescGetCollisionBox = "(Lnet/minecraft/block/state/IBlockState;Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;)Lnet/minecraft/util/math/AxisAlignedBB;";
+        String methodDescGetCollisionBox = "(Lnet/minecraft/block/state/IBlockState;Lnet/minecraft/world/IBlockAccess;Lnet/minecraft/util/math/BlockPos;)Lnet/minecraft/util/math/AxisAlignedBB;";
 
         String methodNameIsPassable = PLCore.isDebofEnabled ? "func_176205_b" : "isPassable";
         String methodDescIsPassable = "(Lnet/minecraft/world/IBlockAccess;Lnet/minecraft/util/math/BlockPos;)Z";
@@ -82,7 +82,7 @@ public byte[] transform(String name, String transformedName, byte[] basicClass)
         //TODO keep track of parameter changes between minecraft updates!
         LocalVariableNode lvnThis = new LocalVariableNode("this", "Lnet/minecraft/block/BlockLeaves;", null, startLabel, endLabel, 0);
         LocalVariableNode lvnPState = new LocalVariableNode("inState", "Lnet/minecraft/block/state/IBlockState;", null, startLabel, endLabel, 1);
-        LocalVariableNode lvnPWorld = new LocalVariableNode("inWorld", "Lnet/minecraft/world/World;", null, startLabel, endLabel, 2);
+        LocalVariableNode lvnPWorld = new LocalVariableNode("inWorld", "Lnet/minecraft/world/IBlockAccess;", null, startLabel, endLabel, 2);
         LocalVariableNode lvnPPos = new LocalVariableNode("inPos", "Lnet/minecraft/util/math/BlockPos;", null, startLabel, endLabel, 3);
         getCollisionBox.localVariables = Lists.newArrayList(lvnThis, lvnPState, lvnPWorld, lvnPPos);
 
diff --git a/src/main/java/passableleaves/reference/ModInfo.java b/src/main/java/passableleaves/reference/ModInfo.java
index 3b9d9d58f..b7e5350a0 100644
--- a/src/main/java/passableleaves/reference/ModInfo.java
+++ b/src/main/java/passableleaves/reference/ModInfo.java
@@ -6,6 +6,7 @@ public class ModInfo
     public static final String MOD_ID = "passableleaves";
     public static final String MOD_NAME = "Passable Leaves";
     public static final String MOD_VERSION = "@MOD_VERSION@";
+    public static final String MC_VERSION = "1.11.2";
     public static final String MCF_MINVER = "0.0-MCF+MINVER";
     public static final String MCF_MAXVER = "9001.0-MCF+MAXVER";
     public static final String CONFIG_DIRECTORY = "PassableLeaves";