diff --git a/build.gradle b/build.gradle
index bdf1d80..3a04e2e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -48,3 +48,10 @@ subprojects { p ->
         }
     }
 }
+
+def buildAndGather = tasks.register('buildAndGather') {
+    group = 'build'
+    description = 'Build all version subprojects and collect their mod jars into build/libs.'
+    dependsOn collectJars
+    subprojects.each { p -> dependsOn("${p.path}:build") }
+}
diff --git a/src/main/java/cn/ussshenzhou/notenoughbandwidth/mixin/ClientChunkLightRecomputeMixin.java b/src/main/java/cn/ussshenzhou/notenoughbandwidth/mixin/ClientChunkLightRecomputeMixin.java
index 5b42bbd..ce8f4c0 100644
--- a/src/main/java/cn/ussshenzhou/notenoughbandwidth/mixin/ClientChunkLightRecomputeMixin.java
+++ b/src/main/java/cn/ussshenzhou/notenoughbandwidth/mixin/ClientChunkLightRecomputeMixin.java
@@ -17,7 +17,7 @@
 public class ClientChunkLightRecomputeMixin {
 
     @Inject(method = "applyLightData", at = @At("TAIL"))
-    //#if MC>=12002
+    //#if MC>=12102
     private void nebRecomputeStrippedLight(int x, int z, ClientboundLightUpdatePacketData lightData, boolean trustEdges, CallbackInfo ci) {
     //#else
     //$$ private void nebRecomputeStrippedLight(int x, int z, ClientboundLightUpdatePacketData lightData, CallbackInfo ci) {
diff --git a/src/main/java/cn/ussshenzhou/notenoughbandwidth/mixin/ClientPlayNetworkHandlerInvoker.java b/src/main/java/cn/ussshenzhou/notenoughbandwidth/mixin/ClientPlayNetworkHandlerInvoker.java
index c207b41..7bfe90f 100644
--- a/src/main/java/cn/ussshenzhou/notenoughbandwidth/mixin/ClientPlayNetworkHandlerInvoker.java
+++ b/src/main/java/cn/ussshenzhou/notenoughbandwidth/mixin/ClientPlayNetworkHandlerInvoker.java
@@ -17,7 +17,7 @@ public interface ClientPlayNetworkHandlerInvoker {
     @Invoker("updateLevelChunk")
     void nebLoadChunk(int x, int z, ClientboundLevelChunkPacketData chunkData);
 
-    //#if MC>=12002
+    //#if MC>=12102
     @Invoker("applyLightData")
     void nebReadLightData(int x, int z, ClientboundLightUpdatePacketData lightData, boolean bl);
     //#else
diff --git a/src/main/java/cn/ussshenzhou/notenoughbandwidth/network/ModNetworking.java b/src/main/java/cn/ussshenzhou/notenoughbandwidth/network/ModNetworking.java
index 8bff4dc..579c3b7 100644
--- a/src/main/java/cn/ussshenzhou/notenoughbandwidth/network/ModNetworking.java
+++ b/src/main/java/cn/ussshenzhou/notenoughbandwidth/network/ModNetworking.java
@@ -228,7 +228,11 @@ public static void registerClient() {
                     if (world != null) {
                         // 26.1: ClientLevel.enqueueChunkUpdate is gone; just run on the client thread.
                         net.minecraft.client.Minecraft.getInstance().execute(() -> {
+                            //#if MC>=12102
                             invoker.nebReadLightData(x, z, lightData, false);
+                            //#else
+                            //$$ invoker.nebReadLightData(x, z, lightData);
+                            //#endif
                             var worldChunk = world.getChunkSource().getChunkNow(x, z);
                             if (worldChunk != null) {
                                 invoker.nebScheduleRenderChunk(worldChunk, x, z);