diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..c399503
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,2 @@
+## 1.1.1-beta.1
+- Full support for 1.21.1-26.1.2
\ No newline at end of file
diff --git a/build.gradle.kts b/build.gradle.kts
index fae1ba8..8e1a947 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -9,15 +9,18 @@ plugins {
     id("dev.kikugie.loom-back-compat")
     id("org.jetbrains.kotlin.jvm") version "2.3.0"
     id("dev.deftu.gradle.bloom") version "0.2.0"
+    id("me.modmuss50.mod-publish-plugin") version "1.1.0"
 }
 
-val modid = property("mod.id")
-val modname = property("mod.name")
-val modversion = property("mod.version")
-val mcversion = property("minecraft_version")
+val modid = property("mod.id") as String
+val modname = property("mod.name") as String
+val modversion = property("mod.version") as String
+val mcversion = property("minecraft_version") as String
+val versionrange = property("minecraft_version_range")
+val loaderversion = property("loader_version")
 
 base {
-    archivesName.set(property("mod.id") as String)
+    archivesName.set("$modid-$modversion+$mcversion")
 }
 
 repositories {
@@ -94,8 +97,8 @@ tasks.processResources {
         "mod_id" to modid,
         "mod_name" to modname,
         "mod_version" to modversion,
-        "mc_version" to mcversion,
-        "loader_version" to providers.gradleProperty("loader_version").get()
+        "minecraft_version_range" to versionrange,
+        "loader_version" to loaderversion
     )
 
     inputs.properties(props)
@@ -143,3 +146,57 @@ tasks.jar {
 fun <T> optionalProp(property: String, block: (String) -> T?): T? =
     findProperty(property)?.toString()?.takeUnless { it.isBlank() }?.let(block)
 
+val modrinthMinecraftVersionOverride = mapOf(
+    "26.1" to listOf("26.1", "26.1.1", "26.1.2"),
+    "26.1.1" to listOf("26.1", "26.1.1", "26.1.2"),
+    "26.1.2" to listOf("26.1", "26.1.1", "26.1.2")
+)
+
+val modrinthId = listOf("oneconfig.publish.modrinth", "publish.modrinth").firstNotNullOfOrNull { findProperty(it) }?.toString()?.takeIf { it.isNotBlank() }
+val modrinthToken = listOf("oneconfig.publish.modrinth.token", "publish.modrinth.token", "modrinth.token").firstNotNullOfOrNull { findProperty(it) }?.toString()?.takeIf { it.isNotBlank() }
+val minecraftVersion = modrinthMinecraftVersionOverride[mcversion] ?: listOf(mcversion)
+val publishJarTaskName = if ("remapJar" in tasks.names) "remapJar" else "jar"
+val changelogs = rootProject.file("CHANGELOG.md").takeIf { it.exists() }?.readText() ?: "No changelog provided."
+
+val validateChangelog by tasks.registering {
+    description = "Validates that the changelog is written for the current version."
+    if (!changelogs.contains(modversion)) {
+        throw GradleException("Changelog for version $modversion not found.")
+    }
+}
+
+tasks.publishMods.configure {
+    dependsOn(validateChangelog)
+}
+tasks.matching { it.name == "publishModrinth" }.configureEach {
+    dependsOn(validateChangelog)
+}
+
+publishMods {
+    file = tasks.named<AbstractArchiveTask>(publishJarTaskName).flatMap { it.archiveFile }
+
+    displayName = modversion
+    version = "v$modversion"
+    changelog = changelogs
+    type = BETA
+
+    modLoaders.add("fabric")
+
+    dryRun = modrinthId == null || modrinthToken == null
+
+    if (modrinthId != null) {
+        modrinth {
+            projectId = modrinthId
+            accessToken = modrinthToken.orEmpty()
+
+            minecraftVersions.addAll(minecraftVersion)
+
+            requires("oneconfig")
+            requires("fabric-language-kotlin")
+            findProperty("publish.modrinth.compose-bundle")
+                ?.toString()
+                ?.takeIf { it.isNotBlank() }
+                ?.let { requires(it) }
+        }
+    }
+}
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
index 99b24f5..8b81f11 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,8 +1,10 @@
 mod.name=PolyTime
 mod.id=polytime
-mod.version=1.1.0-alpha.3
+mod.version=1.1.1-beta.1
 mod.group=org.polyfrost
 
+publish.modrinth=m3kNp1iP
+
 loomx.loom_version=1.16-SNAPSHOT
 loader_version=0.19.2
 
@@ -13,4 +15,4 @@ org.gradle.parallel.threads=4
 org.gradle.jvmargs=-Xmx4G
 
 # Fix YALMM
-fabric.loom.dropNonIntermediateRootMethods=true
+fabric.loom.dropNonIntermediateRootMethods=true
\ No newline at end of file
diff --git a/src/main/resources/fabric.mod.json b/src/main/resources/fabric.mod.json
index c8c7281..e42181d 100644
--- a/src/main/resources/fabric.mod.json
+++ b/src/main/resources/fabric.mod.json
@@ -24,5 +24,10 @@
     "mixins.${mod_id}.json"
   ],
   "license": "GPL 3.0",
-  "environment": "client"
+  "environment": "client",
+  "depends": {
+    "minecraft": "${minecraft_version_range}",
+    "fabricloader": ">=${loader_version}",
+    "fabric-language-kotlin": "*"
+  }
 }
\ No newline at end of file
diff --git a/versions/1.21.1/gradle.properties b/versions/1.21.1/gradle.properties
index 6c6de24..3d61419 100644
--- a/versions/1.21.1/gradle.properties
+++ b/versions/1.21.1/gradle.properties
@@ -1,3 +1,4 @@
 parchment_version=2024.11.17
 yalmm_version=3
 minecraft_version=1.21.1
+minecraft_version_range=1.21.1
diff --git a/versions/1.21.10/gradle.properties b/versions/1.21.10/gradle.properties
index 09c98a5..8ca8654 100644
--- a/versions/1.21.10/gradle.properties
+++ b/versions/1.21.10/gradle.properties
@@ -1,3 +1,4 @@
 parchment_version=2025.10.12
 yalmm_version=3
 minecraft_version=1.21.10
+minecraft_version_range=>=1.21.9 <=1.21.10
\ No newline at end of file
diff --git a/versions/1.21.11/gradle.properties b/versions/1.21.11/gradle.properties
index 2b66964..f227b41 100644
--- a/versions/1.21.11/gradle.properties
+++ b/versions/1.21.11/gradle.properties
@@ -1,3 +1,4 @@
 parchment_version=2025.12.20
 yalmm_version=3
-minecraft_version=1.21.11
\ No newline at end of file
+minecraft_version=1.21.11
+minecraft_version_range=1.21.11
\ No newline at end of file
diff --git a/versions/1.21.4/gradle.properties b/versions/1.21.4/gradle.properties
index 2dee9c5..d481494 100644
--- a/versions/1.21.4/gradle.properties
+++ b/versions/1.21.4/gradle.properties
@@ -1,3 +1,4 @@
 parchment_version=2025.03.23
 yalmm_version=3
 minecraft_version=1.21.4
+minecraft_version_range=1.21.4
diff --git a/versions/1.21.5/gradle.properties b/versions/1.21.5/gradle.properties
index cda4312..4ab5b77 100644
--- a/versions/1.21.5/gradle.properties
+++ b/versions/1.21.5/gradle.properties
@@ -1,3 +1,4 @@
 parchment_version=2025.06.15
 yalmm_version=3
-minecraft_version=1.21.5
\ No newline at end of file
+minecraft_version=1.21.5
+minecraft_version_range=1.21.5
\ No newline at end of file
diff --git a/versions/1.21.8/gradle.properties b/versions/1.21.8/gradle.properties
index 89bd790..8209a8b 100644
--- a/versions/1.21.8/gradle.properties
+++ b/versions/1.21.8/gradle.properties
@@ -1,3 +1,4 @@
 parchment_version=2025.09.14
 yalmm_version=3
 minecraft_version=1.21.8
+minecraft_version_range=>=1.21.7 <=1.21.8
\ No newline at end of file
diff --git a/versions/26.1/gradle.properties b/versions/26.1/gradle.properties
index bb4b398..a187a0a 100644
--- a/versions/26.1/gradle.properties
+++ b/versions/26.1/gradle.properties
@@ -1,4 +1,5 @@
 yalmm_version=3
 minecraft_version=26.1
 has_official_mappings=false
-java_version=25
\ No newline at end of file
+java_version=25
+minecraft_version_range=~26.1
\ No newline at end of file