diff --git a/build.gradle b/build.gradle
index 562f9a6..dc9e9df 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,9 +12,11 @@ preprocess {
 	//def mc1193 = createNode('1.19.3', 1_19_03, 'yarn')
 	def mc1194 = createNode('1.19.4', 1_19_04, 'yarn')
     def mc1201 = createNode('1.20.1', 1_20_01, 'yarn')
+    def mc1202 = createNode('1.20.2', 1_20_02, 'yarn')
 
 	// mapping difference map
 	// base 1194 -> 1193 -> 1192 ->1190-> 118 -> 117 -> 116
+    mc1202.link(mc1201, file('versions/mapping-1.20.2-1.20.1.txt'))
     mc1201.link(mc1194, file('versions/mapping-1.20.1-1.19.4.txt'))
 	//mc1194.link(mc1193, file('versions/mapping-1.19.4-1.19.3.txt'))
 	//mc1193.link(mc1192, file('versions/mapping-1.19.3-1.19.2.txt'))
diff --git a/external/essential-client-1.20.1-1.3.6.jar b/external/essential-client-1.20.1-1.3.6.jar
new file mode 100644
index 0000000..f60acd9
Binary files /dev/null and b/external/essential-client-1.20.1-1.3.6.jar differ
diff --git a/settings.gradle b/settings.gradle
index 6be6ae0..302b5b0 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -32,7 +32,8 @@ def versions = Arrays.asList(
         //"1.19.2",
         //"1.19.3",
         "1.19.4",
-        "1.20.1"
+        "1.20.1",
+        "1.20.2"
 )
 
 for (String version : versions) {
diff --git a/src/main/java/io/github/eatmyvenom/litematicin/mixin/MinecraftClient/ClientPlayNetworkHandlerMixin.java b/src/main/java/io/github/eatmyvenom/litematicin/mixin/MinecraftClient/ClientPlayNetworkHandlerMixin.java
index cb2a842..44a0cde 100644
--- a/src/main/java/io/github/eatmyvenom/litematicin/mixin/MinecraftClient/ClientPlayNetworkHandlerMixin.java
+++ b/src/main/java/io/github/eatmyvenom/litematicin/mixin/MinecraftClient/ClientPlayNetworkHandlerMixin.java
@@ -69,11 +69,12 @@ private void onUpdateSlots(ScreenHandlerSlotUpdateS2CPacket packet, CallbackInfo
 		}
 		cancelIfRequired(ci);
 	}
-
+	//#if MC<=12001
 	@Inject(method = "onDisconnect", at = @At("HEAD"))
 	private void handleDisconnect(DisconnectS2CPacket packet, CallbackInfo ci) {
 		isSynced = false;
 	}
+	//#endif
 
 	@Inject(method = "onUpdateSelectedSlot", at = @At("HEAD"), cancellable = true, require = 0)
 	private void onUpdateSelectSlots(UpdateSelectedSlotS2CPacket packet, CallbackInfo ci) {
diff --git a/versions/1.20.2/gradle.properties b/versions/1.20.2/gradle.properties
new file mode 100644
index 0000000..56f56c3
--- /dev/null
+++ b/versions/1.20.2/gradle.properties
@@ -0,0 +1,13 @@
+# Fabric Properties
+    # check these on https://fabricmc.net/use
+    minecraft_version=1.20.2
+    yarn_mappings=1.20.2+build.1
+    fabricapi_version=0.90.0+1.20.2
+    minecraft_version_out =1.20.2
+
+# Mod Properties
+    malilib_projectid=303119
+    malilib_fileid=4788432
+    litematica_fileid=4789765
+    litematica_projectid=308892
+    essentialclient_filename=essential-client-1.20.1-1.3.6.jar
diff --git a/versions/mapping-1.20.2-1.20.1.txt b/versions/mapping-1.20.2-1.20.1.txt
new file mode 100644
index 0000000..621e5c4
--- /dev/null
+++ b/versions/mapping-1.20.2-1.20.1.txt
@@ -0,0 +1 @@
+net.minecraft.network.packet.s2c.play.ScreenHandlerSlotUpdateS2CPacket getStack() getItemStack()
\ No newline at end of file