diff --git a/build.gradle b/build.gradle
index bf9a76c..646139b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-    id 'fabric-loom' version "${loom_version}"
+    id 'net.fabricmc.fabric-loom' version "${loom_version}"
     id 'maven-publish'
     id("io.freefair.lombok") version "9.0.0-rc2"
     id("com.gradleup.shadow") version '9.1.0'
@@ -15,6 +15,11 @@ allprojects {
         archivesName = project.archives_base_name
     }
 
+    // Lombok 1.18.40+ is required for JDK 25 (class file major version 69).
+    lombok {
+        version = "1.18.46"
+    }
+
     repositories {
         // Add repositories to retrieve artifacts from in here.
         // You should only use this when depending on other mods because
@@ -46,23 +51,23 @@ loom {
         // If you remove this line, sources will not be generated.
         withSourcesJar()
 
-        sourceCompatibility = JavaVersion.VERSION_21
-        targetCompatibility = JavaVersion.VERSION_21
+        sourceCompatibility = JavaVersion.VERSION_25
+        targetCompatibility = JavaVersion.VERSION_25
     }
     tasks.withType(JavaCompile).configureEach {
-        it.options.release = 21
+        it.options.release = 25
     }
 
 }
 
 dependencies {
     // To change the versions see the gradle.properties file
+    // Minecraft 26.1+ is unobfuscated, so no mappings are required.
     minecraft "com.mojang:minecraft:${project.minecraft_version}"
-    mappings loom.officialMojangMappings()
-    modImplementation "net.fabricmc:fabric-loader:${project.loader_version}"
+    implementation "net.fabricmc:fabric-loader:${project.loader_version}"
 
     // Fabric API. This is technically optional, but you probably want it anyway.
-    modImplementation "net.fabricmc.fabric-api:fabric-api:${project.fabric_version}"
+    implementation "net.fabricmc.fabric-api:fabric-api:${project.fabric_version}"
     // https://mvnrepository.com/artifact/software.amazon.awssdk/s3
     shadow project(":bundler")
     shadow 'software.amazon.awssdk:s3:2.34.0'
@@ -89,16 +94,21 @@ processResources {
     }
 }
 jar {
+    // Minecraft 26.1+ is unobfuscated, so there is no remapJar step; the shaded
+    // jar is the distributable mod. Keep the thin jar under a separate classifier.
+    archiveClassifier = 'dev'
     inputs.property "archivesName", project.base.archivesName
     from("LICENSE") {
         rename { "${it}_${inputs.properties.archivesName}" }
     }
 }
 
-remapJar {
-    input = tasks.shadowJar.archiveFile
+shadowJar {
+    archiveClassifier = ''
 }
 
+assemble.dependsOn shadowJar
+
 // configure the maven publication
 publishing {
     publications {
diff --git a/bundler/test.mca b/bundler/test.mca
new file mode 100644
index 0000000..3d19d2e
Binary files /dev/null and b/bundler/test.mca differ
diff --git a/gradle.properties b/gradle.properties
index 13c286d..cd7c799 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,12 +2,14 @@
 org.gradle.jvmargs=-Xmx4G
 org.gradle.parallel=true
 
+# IntelliJ IDEA is not yet fully compatible with configuration cache, see: https://github.com/FabricMC/fabric-loom/issues/1349
+org.gradle.configuration-cache=false
+
 # Fabric Properties
 # check these on https://fabricmc.net/develop
-minecraft_version=1.21.8
-yarn_mappings=1.21.8+build.1
-loader_version=0.16.14
-loom_version=1.11-SNAPSHOT
+minecraft_version=26.2
+loader_version=0.19.3
+loom_version=1.17-SNAPSHOT
 
 # Mod Properties
 mod_version=1.0.0
@@ -15,4 +17,4 @@ maven_group=io.ib67.sfcraft
 archives_base_name=justbackup
 
 # Dependencies
-fabric_version=0.129.0+1.21.8
\ No newline at end of file
+fabric_version=0.154.2+26.2
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index ff23a68..5dd3c01 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.5.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/src/main/java/io/ib67/sfcraft/BackupCommands.java b/src/main/java/io/ib67/sfcraft/BackupCommands.java
index 27c341b..4288ba2 100644
--- a/src/main/java/io/ib67/sfcraft/BackupCommands.java
+++ b/src/main/java/io/ib67/sfcraft/BackupCommands.java
@@ -58,7 +58,7 @@ public class BackupCommands {
             CommandDispatcher<CommandSourceStack> dispatcher,
             CommandBuildContext registry, Commands.CommandSelection env) {
         dispatcher.register(literal("backup")
-                .requires(it -> it.hasPermission(4))
+                .requires(Commands.hasPermission(Commands.LEVEL_OWNERS))
                 .then(literal("help").executes(this::cmdHelp))
                 .then(literal("list").executes(this::cmdList))
                 .then(literal("cancelrestore").executes(this::cmdCancelRestore))
diff --git a/src/main/resources/fabric.mod.json b/src/main/resources/fabric.mod.json
index c3f0f27..c9b0cab 100644
--- a/src/main/resources/fabric.mod.json
+++ b/src/main/resources/fabric.mod.json
@@ -19,9 +19,9 @@
 		"justbackup.mixins.json"
 	],
 	"depends": {
-		"fabricloader": ">=0.16.14",
-		"minecraft": "~1.21.8",
-		"java": ">=21",
+		"fabricloader": ">=0.19.3",
+		"minecraft": "~26.2",
+		"java": ">=25",
 		"fabric-api": "*"
 	}
 }
\ No newline at end of file
diff --git a/src/main/resources/justbackup.mixins.json b/src/main/resources/justbackup.mixins.json
index 50ccb18..b7cc1e7 100644
--- a/src/main/resources/justbackup.mixins.json
+++ b/src/main/resources/justbackup.mixins.json
@@ -1,7 +1,7 @@
 {
   "required": true,
   "package": "io.ib67.sfcraft.mixin",
-  "compatibilityLevel": "JAVA_21",
+  "compatibilityLevel": "JAVA_25",
   "mixins": [
     "MixinMinecraftServer",
     "MixinRegionBasedStorage"