diff --git a/build.gradle.kts b/build.gradle.kts
index 546446c..42e487c 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     id("io.github.gaming32.gradle.preprocess-root") version "0.4.4"
-    id("dev.architectury.loom") version "1.7.415" apply false
+    id("dev.architectury.loom") version "1.7.416" apply false
     id("com.modrinth.minotaur") version "2.8.7" apply false
     id("xyz.wagyourtail.jvmdowngrader") version "1.2.1" apply false
 }
@@ -10,14 +10,18 @@ repositories {
 }
 
 preprocess {
-    val fabric12103 = createNode("1.21.3-fabric", 1_21_03, "yarn")
-    val neoforge12103 = createNode("1.21.3-neoforge", 1_21_03, "yarn")
-    val fabric12101 = createNode("1.21.1-fabric", 1_21_01, "yarn")
-    val neoforge12101 = createNode("1.21.1-neoforge", 1_21_01, "yarn")
-    val fabric12006 = createNode("1.20.6-fabric", 1_20_06, "yarn")
-    val neoforge12006 = createNode("1.20.6-neoforge", 1_20_06, "yarn")
-    val fabric12004 = createNode("1.20.4-fabric", 1_20_04, "yarn")
-    val neoforge12004 = createNode("1.20.4-neoforge", 1_20_04, "yarn")
+    fun createNode(project: String, mcVersion: Int) = createNode(project, mcVersion, "yarn")
+
+    val fabric12104 = createNode("1.21.4-fabric", 1_21_04)
+    val neoforge12104 = createNode("1.21.4-neoforge", 1_21_04)
+    val fabric12103 = createNode("1.21.3-fabric", 1_21_03)
+    val neoforge12103 = createNode("1.21.3-neoforge", 1_21_03)
+    val fabric12101 = createNode("1.21.1-fabric", 1_21_01)
+    val neoforge12101 = createNode("1.21.1-neoforge", 1_21_01)
+    val fabric12006 = createNode("1.20.6-fabric", 1_20_06)
+    val neoforge12006 = createNode("1.20.6-neoforge", 1_20_06)
+    val fabric12004 = createNode("1.20.4-fabric", 1_20_04)
+    val neoforge12004 = createNode("1.20.4-neoforge", 1_20_04)
     val fabric12001 = createNode("1.20.1-fabric", 1_20_01, "yarn")
     val forge12001 = createNode("1.20.1-forge", 1_20_01, "srg")
     val fabric11904 = createNode("1.19.4-fabric", 1_19_04, "yarn")
@@ -25,19 +29,21 @@ preprocess {
     val fabric11902 = createNode("1.19.2-fabric", 1_19_02, "yarn")
     val forge11902 = createNode("1.19.2-forge", 1_19_02, "srg")
 
-    fabric12103.link(neoforge12103)
-    neoforge12103.link(neoforge12101)
-    neoforge12101.link(fabric12101)
-    fabric12101.link(fabric12006)
-    fabric12006.link(neoforge12006)
-    neoforge12006.link(neoforge12004)
-    neoforge12004.link(fabric12004)
-    fabric12004.link(fabric12001)
-    fabric12001.link(forge12001)
-    forge12001.link(forge11904)
-    forge11904.link(fabric11904)
-    fabric11904.link(fabric11902)
-    fabric11902.link(forge11902)
+    fabric12104.link(neoforge12104)
+    neoforge12104.link(neoforge12103)
+    neoforge12103.link(fabric12103)
+    fabric12103.link(fabric12101)
+    fabric12101.link(neoforge12101)
+    neoforge12101.link(neoforge12006)
+    neoforge12006.link(fabric12006)
+    fabric12006.link(fabric12004)
+    fabric12004.link(neoforge12004)
+    neoforge12004.link(forge12001)
+    forge12001.link(fabric12001)
+    fabric12001.link(fabric11904)
+    fabric11904.link(forge11904)
+    forge11904.link(forge11902)
+    forge11902.link(fabric11902)
 }
 
 subprojects {
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 48d44c9..07a7f23 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -32,6 +32,8 @@ listOf(
     "1.21.1-fabric",
     "1.21.3-neoforge",
     "1.21.3-fabric",
+    "1.21.4-neoforge",
+    "1.21.4-fabric",
 ).forEach { version ->
     include(":$version")
     project(":$version").apply {
diff --git a/version.gradle.kts b/version.gradle.kts
index dc56385..d3119e2 100644
--- a/version.gradle.kts
+++ b/version.gradle.kts
@@ -174,6 +174,7 @@ dependencies {
             }.let { "forge"("net.minecraftforge:forge:$mcVersionString-$it") }
         isNeoForge ->
             when (mcVersion) {
+                1_21_04 -> "21.4.1-beta"
                 1_21_03 -> "21.3.56"
                 1_21_01 -> "21.1.1"
                 1_20_06 -> "20.6.115"
@@ -189,6 +190,7 @@ dependencies {
 
     if (isFabric) {
         when (mcVersion) {
+            1_21_04 -> "12.0.0-beta.1" // TODO: Use actual version
             1_21_03 -> "12.0.0-beta.1"
             1_21_01 -> "11.0.1"
             1_20_06 -> "10.0.0"
@@ -211,6 +213,7 @@ dependencies {
 
     if (isFabric) {
         when (mcVersion) {
+            1_21_04 -> "0.110.5+1.21.4"
             1_21_03 -> "0.106.1+1.21.3"
             1_21_01 -> "0.102.0+1.21.1"
             1_20_06 -> "0.100.0+1.20.6"
@@ -247,6 +250,7 @@ dependencies {
 
     compileOnly("de.maxhenkel.voicechat:voicechat-api:2.5.0")
     when (mcVersion) {
+        1_21_04 -> "2.5.26"
         1_21_03 -> "2.5.24"
         1_21_01 -> "2.5.20"
         1_20_06 -> "2.5.20"
@@ -330,6 +334,7 @@ tasks.processResources {
     // TODO: Remove pack.mcmeta in 1.20.4
     filesMatching("pack.mcmeta") {
         expand("pack_format" to when {
+            mcVersion >= 1_21_04 -> 61
             mcVersion >= 1_21_02 -> 42
             mcVersion >= 1_21_00 -> 34
             mcVersion >= 1_20_05 -> 32