diff --git a/gradle.properties b/gradle.properties
index 756f59c21f..14486607d4 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 group=io.papermc.paper
-version=1.18-rc3-R0.1-SNAPSHOT
+version=1.18-R0.1-SNAPSHOT
 
 mcVersion=1.18-rc3
 
diff --git a/patches/server/0815-1.18-Release.patch b/patches/server/0815-1.18-Release.patch
new file mode 100644
index 0000000000..e0033a80ef
--- /dev/null
+++ b/patches/server/0815-1.18-Release.patch
@@ -0,0 +1,69 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Nassim Jahnke <jahnke.nassim@gmail.com>
+Date: Tue, 30 Nov 2021 09:57:30 +0100
+Subject: [PATCH] 1.18 Release
+
+
+diff --git a/src/main/java/net/minecraft/DetectedVersion.java b/src/main/java/net/minecraft/DetectedVersion.java
+index c79aabe7418b6ee6c18cda9b8f1d8d7d59c69796..5cbd77a095639af8b45e9ff13587edbf60d1b6c7 100644
+--- a/src/main/java/net/minecraft/DetectedVersion.java
++++ b/src/main/java/net/minecraft/DetectedVersion.java
+@@ -29,9 +29,9 @@ public class DetectedVersion implements WorldVersion {
+ 
+     private DetectedVersion() {
+         this.id = UUID.randomUUID().toString().replaceAll("-", "");
+-        this.name = "1.18-rc3";
+-        this.stable = false;
+-        this.worldVersion = new DataVersion(2858, "main");
++        this.name = "1.18"; // Paper - release day
++        this.stable = true; // Paper - release day
++        this.worldVersion = new DataVersion(2860, "main"); // Paper - release day
+         this.protocolVersion = SharedConstants.getProtocolVersion();
+         this.resourcePackVersion = 8;
+         this.dataPackVersion = 8;
+diff --git a/src/main/java/net/minecraft/SharedConstants.java b/src/main/java/net/minecraft/SharedConstants.java
+index a0776c49497185e5c847d4f0397e8b4d2eb36d27..abbff23b37afab21c1217cd36bb1b704e9b44ae5 100644
+--- a/src/main/java/net/minecraft/SharedConstants.java
++++ b/src/main/java/net/minecraft/SharedConstants.java
+@@ -11,16 +11,16 @@ import net.minecraft.world.level.ChunkPos;
+ public class SharedConstants {
+     /** @deprecated */
+     @Deprecated
+-    public static final boolean SNAPSHOT = true;
++    public static final boolean SNAPSHOT = false; // Paper - release day
+     /** @deprecated */
+     @Deprecated
+-    public static final int WORLD_VERSION = 2858;
++    public static final int WORLD_VERSION = 2860; // Paper - release day
+     /** @deprecated */
+     @Deprecated
+     public static final String SERIES = "main";
+     /** @deprecated */
+     @Deprecated
+-    public static final String VERSION_STRING = "1.18-rc3";
++    public static final String VERSION_STRING = "1.18"; // Paper - release day
+     /** @deprecated */
+     @Deprecated
+     public static final String RELEASE_TARGET = "1.18";
+@@ -170,7 +170,7 @@ public class SharedConstants {
+     }
+ 
+     public static int getProtocolVersion() {
+-        return 1073741883;
++        return RELEASE_NETWORK_PROTOCOL_VERSION; // Paper - release day
+     }
+ 
+     public static boolean debugVoidTerrain(ChunkPos chunkPos) {
+diff --git a/src/main/java/net/minecraft/data/worldgen/placement/OrePlacements.java b/src/main/java/net/minecraft/data/worldgen/placement/OrePlacements.java
+index 0caccf465352719c23001247f930bf504a074c0e..b8e7713d3938ca1d1f294ca3884a629756ec4470 100644
+--- a/src/main/java/net/minecraft/data/worldgen/placement/OrePlacements.java
++++ b/src/main/java/net/minecraft/data/worldgen/placement/OrePlacements.java
+@@ -31,7 +31,7 @@ public class OrePlacements {
+     public static final PlacedFeature ORE_ANDESITE_LOWER = PlacementUtils.register("ore_andesite_lower", OreFeatures.ORE_ANDESITE.placed(commonOrePlacement(2, HeightRangePlacement.uniform(VerticalAnchor.absolute(0), VerticalAnchor.absolute(60)))));
+     public static final PlacedFeature ORE_TUFF = PlacementUtils.register("ore_tuff", OreFeatures.ORE_TUFF.placed(commonOrePlacement(2, HeightRangePlacement.uniform(VerticalAnchor.bottom(), VerticalAnchor.absolute(0)))));
+     public static final PlacedFeature ORE_COAL_UPPER = PlacementUtils.register("ore_coal_upper", OreFeatures.ORE_COAL.placed(commonOrePlacement(30, HeightRangePlacement.uniform(VerticalAnchor.absolute(136), VerticalAnchor.top()))));
+-    public static final PlacedFeature ORE_COAL_LOWER = PlacementUtils.register("ore_coal_lower", OreFeatures.ORE_COAL_BURIED.placed(commonOrePlacement(20, HeightRangePlacement.uniform(VerticalAnchor.absolute(0), VerticalAnchor.absolute(192)))));
++    public static final PlacedFeature ORE_COAL_LOWER = PlacementUtils.register("ore_coal_lower", OreFeatures.ORE_COAL_BURIED.placed(commonOrePlacement(20, HeightRangePlacement.triangle(VerticalAnchor.absolute(0), VerticalAnchor.absolute(192))))); // Paper - rc4 patch
+     public static final PlacedFeature ORE_IRON_UPPER = PlacementUtils.register("ore_iron_upper", OreFeatures.ORE_IRON.placed(commonOrePlacement(90, HeightRangePlacement.triangle(VerticalAnchor.absolute(80), VerticalAnchor.absolute(384)))));
+     public static final PlacedFeature ORE_IRON_MIDDLE = PlacementUtils.register("ore_iron_middle", OreFeatures.ORE_IRON.placed(commonOrePlacement(10, HeightRangePlacement.triangle(VerticalAnchor.absolute(-24), VerticalAnchor.absolute(56)))));
+     public static final PlacedFeature ORE_IRON_SMALL = PlacementUtils.register("ore_iron_small", OreFeatures.ORE_IRON_SMALL.placed(commonOrePlacement(10, HeightRangePlacement.uniform(VerticalAnchor.bottom(), VerticalAnchor.absolute(72)))));