feat(leaf): support Purpur 26.3

README.md

@@ -1,12 +1,12 @@
 # Purpur Leaf
 
-Leaf is a Purpur 26.2 plugin that lets non-aggressive players opt into visible Resistance and Strength protection.
+Leaf is a Purpur 26.3 plugin that lets non-aggressive players opt into visible Resistance and Strength protection.
 
 The approved behavior is specified in the [SoMC OKF wiki](https://git.garvis.dev/dmg/somc-okf/src/branch/main/projects/purpur-leaf/index.md).
 
 ## Requirements
 
-- Purpur 26.2 build 2618
+- Purpur 26.3 build 2651
 - Java 25
 
 Distribution repository, checkout and artifacts use `purpur-leaf`. Runtime `Leaf`, Java packages/entrypoint, `plugins/Leaf/`, commands/permissions and `leaf_protected` scoreboard team are unchanged. Replace the old JAR instead of installing both distributions. Old release tags/assets remain available. New releases no longer support Java 17.
@@ -19,6 +19,15 @@ Distribution repository, checkout and artifacts use `purpur-leaf`. Runtime `Leaf
 
 The plugin JAR is written to `build/libs/purpur-leaf-<version>.jar`.
 
+`check` includes `nativeLifecycleTest`. It downloads the exact Purpur 26.3 build 2651 launcher,
+verifies SHA-256
+`0677c1febecfbc2e5b0a7f76abd647b70a1f38d3cbdf3dd6a82e401b4262a598`, and runs Paperclip in
+patch-only mode under `build/native-runtime/`. The native boundary loads the packaged entrypoint
+through Purpur's plugin classloader, enables it with controlled server, scheduler, player and
+scoreboard ports, restores persisted protection, exercises command-backed YAML persistence, and
+disables it while verifying owned presentation cleanup. It does not start a listening server, open a
+port, create a world, or provide live-client/deployed-server evidence.
+
 ## Commands
 
 ```text

build.gradle.kts

@@ -1,3 +1,6 @@
+import java.net.URI
+import java.security.MessageDigest
+
 plugins {
     java
 }
@@ -23,9 +26,9 @@ tasks.withType<JavaCompile>().configureEach {
 }
 
 dependencies {
-    compileOnly("org.purpurmc.purpur:purpur-api:26.2.build.2618-stable")
+    compileOnly("org.purpurmc.purpur:purpur-api:26.3.build.2651-stable")
 
-    testImplementation("org.purpurmc.purpur:purpur-api:26.2.build.2618-stable")
+    testImplementation("org.purpurmc.purpur:purpur-api:26.3.build.2651-stable")
     testImplementation(platform("org.junit:junit-bom:5.13.4"))
     testImplementation("org.junit.jupiter:junit-jupiter")
     testImplementation("org.mockito:mockito-core:5.18.0")
@@ -40,6 +43,64 @@ tasks.test {
     systemProperty("distribution.version", project.version.toString())
 }
 
+// Patch and load the exact supported server without starting a world or opening a port.
+val nativeRuntime = layout.buildDirectory.dir("native-runtime")
+val downloadNativeRuntime = tasks.register("downloadNativeRuntime") {
+    val launcher = nativeRuntime.map { it.file("purpur-26.3-2651.jar") }
+    outputs.file(launcher)
+    doLast {
+        val file = launcher.get().asFile
+        file.parentFile.mkdirs()
+        val connection = URI("https://api.purpurmc.org/v2/purpur/26.3/2651/download")
+            .toURL().openConnection()
+        connection.connectTimeout = 30_000
+        connection.readTimeout = 120_000
+        val bytes = connection.getInputStream().use { it.readBytes() }
+        val digest = MessageDigest.getInstance("SHA-256").digest(bytes)
+            .joinToString("") { "%02x".format(it) }
+        check(digest == "0677c1febecfbc2e5b0a7f76abd647b70a1f38d3cbdf3dd6a82e401b4262a598") {
+            "Purpur 2651 checksum mismatch"
+        }
+        file.writeBytes(bytes)
+    }
+}
+val prepareNativeRuntime = tasks.register<JavaExec>("prepareNativeRuntime") {
+    dependsOn(downloadNativeRuntime)
+    javaLauncher = javaToolchains.launcherFor { languageVersion = JavaLanguageVersion.of(25) }
+    classpath = files(nativeRuntime.map { it.file("purpur-26.3-2651.jar") })
+    mainClass = "io.papermc.paperclip.Main"
+    jvmArgs("-Dpaperclip.patchonly=true")
+    workingDir(nativeRuntime)
+    outputs.dir(nativeRuntime.map { it.dir("versions") })
+    outputs.dir(nativeRuntime.map { it.dir("libraries") })
+}
+val nativeTest = sourceSets.create("nativeTest")
+dependencies {
+    add(nativeTest.implementationConfigurationName, platform("org.junit:junit-bom:5.13.4"))
+    add(nativeTest.implementationConfigurationName, "org.junit.jupiter:junit-jupiter")
+    add(nativeTest.implementationConfigurationName, "org.mockito:mockito-core:5.18.0")
+    add(nativeTest.compileOnlyConfigurationName, "org.jetbrains:annotations:26.0.2")
+    add(nativeTest.compileOnlyConfigurationName, "org.checkerframework:checker-qual:3.49.2")
+    add(nativeTest.runtimeOnlyConfigurationName, "org.junit.platform:junit-platform-launcher")
+}
+val nativeRuntimeJars = files(fileTree(nativeRuntime) {
+    include("versions/**/*.jar", "libraries/**/*.jar")
+}).builtBy(prepareNativeRuntime)
+nativeTest.compileClasspath += sourceSets.main.get().output + nativeRuntimeJars
+nativeTest.runtimeClasspath += sourceSets.main.get().runtimeClasspath + nativeRuntimeJars
+val nativeLifecycleTest = tasks.register<Test>("nativeLifecycleTest") {
+    description = "Loads, enables, and disables the packaged plugin on the pinned Purpur runtime"
+    dependsOn(tasks.jar)
+    testClassesDirs = nativeTest.output.classesDirs
+    classpath = nativeTest.runtimeClasspath
+    useJUnitPlatform()
+    maxHeapSize = "1G"
+    workingDir(nativeRuntime)
+    systemProperty("distribution.jar", tasks.jar.get().archiveFile.get().asFile.absolutePath)
+    systemProperty("distribution.version", project.version.toString())
+}
+tasks.check { dependsOn(nativeLifecycleTest) }
+
 val pluginVersion = version
 
 tasks.processResources {

src/nativeTest/java/games/dmg/leaf/LeafLifecycleNativeTest.java

@@ -0,0 +1,267 @@
+package games.dmg.leaf;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.*;
+
+import io.papermc.paper.plugin.configuration.PluginMeta;
+import io.papermc.paper.plugin.provider.classloader.ConfiguredPluginClassLoader;
+import io.papermc.paper.plugin.provider.classloader.PluginClassLoaderGroup;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.jar.JarFile;
+import java.util.logging.Logger;
+import org.bukkit.Server;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.PluginCommand;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Listener;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.PluginDescriptionFile;
+import org.bukkit.plugin.PluginManager;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.bukkit.potion.PotionEffect;
+import org.bukkit.potion.PotionEffectType;
+import org.bukkit.scheduler.BukkitScheduler;
+import org.bukkit.scheduler.BukkitTask;
+import org.bukkit.scoreboard.Scoreboard;
+import org.bukkit.scoreboard.ScoreboardManager;
+import org.bukkit.scoreboard.Team;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+
+/** Exercises the packaged entrypoint through Purpur's native JavaPlugin lifecycle. */
+class LeafLifecycleNativeTest {
+    private static final UUID PLAYER_ID = UUID.fromString("781f7e76-fadd-4437-aa12-fd7853b1a4cc");
+
+    @TempDir Path temporaryDirectory;
+
+    @BeforeAll
+    static void bootstrap() throws Exception {
+        NativeRuntime.bootstrap();
+    }
+
+    @Test
+    void packagedPluginLoadsEnablesRestoresStateAndDisablesConservatively() throws Exception {
+        Path dataDirectory = temporaryDirectory.resolve("Leaf");
+        Files.createDirectories(dataDirectory);
+        Path stateFile = dataDirectory.resolve("state.yml");
+        Files.writeString(stateFile, """
+                future-root: retained
+                players:
+                  %s:
+                    name: Alex
+                    opted-in: true
+                    locked: false
+                    first-join: '2026-08-10T12:34:56Z'
+                    known-names:
+                    - Alex
+                    future-player-field: retained
+                """.formatted(PLAYER_ID));
+
+        AtomicReference<String> displayName = new AtomicReference<>("Alex");
+        AtomicReference<String> playerListName = new AtomicReference<>("Alex");
+        Map<PotionEffectType, PotionEffect> effects = new HashMap<>();
+        Player player = mock(Player.class);
+        when(player.getUniqueId()).thenReturn(PLAYER_ID);
+        when(player.getName()).thenReturn("Alex");
+        when(player.getDisplayName()).thenAnswer(call -> displayName.get());
+        doAnswer(call -> { displayName.set(call.getArgument(0)); return null; })
+                .when(player).setDisplayName(anyString());
+        when(player.getPlayerListName()).thenAnswer(call -> playerListName.get());
+        doAnswer(call -> { playerListName.set(call.getArgument(0)); return null; })
+                .when(player).setPlayerListName(anyString());
+        when(player.getPotionEffect(any())).thenAnswer(call -> effects.get(call.getArgument(0)));
+        when(player.addPotionEffect(any())).thenAnswer(call -> {
+            PotionEffect effect = call.getArgument(0);
+            effects.put(effect.getType(), effect);
+            return true;
+        });
+        doAnswer(call -> { effects.remove(call.getArgument(0)); return null; })
+                .when(player).removePotionEffect(any());
+
+        Team team = mock(Team.class);
+        Set<String> teamEntries = new HashSet<>(Set.of("Other"));
+        AtomicReference<String> teamPrefix = new AtomicReference<>("");
+        doAnswer(call -> { teamPrefix.set(call.getArgument(0)); return null; })
+                .when(team).setPrefix(anyString());
+        doAnswer(call -> { teamEntries.add(call.getArgument(0)); return null; })
+                .when(team).addEntry(anyString());
+        doAnswer(call -> { teamEntries.remove(call.getArgument(0)); return null; })
+                .when(team).removeEntry(anyString());
+        Scoreboard scoreboard = mock(Scoreboard.class);
+        AtomicBoolean teamCreated = new AtomicBoolean();
+        when(scoreboard.getEntryTeam(anyString())).thenAnswer(call ->
+                teamEntries.contains(call.getArgument(0)) && teamCreated.get() ? team : null);
+        when(scoreboard.getTeam("leaf_protected")).thenAnswer(call -> teamCreated.get() ? team : null);
+        when(scoreboard.registerNewTeam("leaf_protected")).thenAnswer(call -> {
+            teamCreated.set(true);
+            return team;
+        });
+        ScoreboardManager scoreboards = mock(ScoreboardManager.class);
+        when(scoreboards.getMainScoreboard()).thenReturn(scoreboard);
+
+        List<Class<?>> listeners = new ArrayList<>();
+        PluginManager manager = mock(PluginManager.class);
+        doAnswer(call -> { listeners.add(((Listener) call.getArgument(0)).getClass()); return null; })
+                .when(manager).registerEvents(any(Listener.class), any(Plugin.class));
+        doAnswer(call -> { throw new AssertionError("Native lifecycle initialization failed"); })
+                .when(manager).disablePlugin(any(Plugin.class));
+        record Scheduled(String type, long delay, long period) { }
+        List<Scheduled> scheduled = new ArrayList<>();
+        BukkitScheduler scheduler = mock(BukkitScheduler.class);
+        when(scheduler.runTaskTimer(any(Plugin.class), any(Runnable.class), anyLong(), anyLong()))
+                .thenAnswer(call -> {
+                    scheduled.add(new Scheduled(call.getArgument(1).getClass().getSimpleName(),
+                            call.getArgument(2), call.getArgument(3)));
+                    return mock(BukkitTask.class);
+                });
+
+        AtomicReference<PluginCommand> command = new AtomicReference<>();
+        Server server = mock(Server.class);
+        when(server.getPluginManager()).thenReturn(manager);
+        when(server.getScheduler()).thenReturn(scheduler);
+        when(server.getPluginCommand("leaf")).thenAnswer(call -> command.get());
+        doReturn(List.of(player)).when(server).getOnlinePlayers();
+        when(server.getPlayer(PLAYER_ID)).thenReturn(player);
+        when(server.getScoreboardManager()).thenReturn(scoreboards);
+        when(server.getLogger()).thenReturn(Logger.getLogger("Leaf lifecycle fixture"));
+        when(server.getWarningState()).thenReturn(org.bukkit.Warning.WarningState.DEFAULT);
+        when(server.getName()).thenReturn("Purpur");
+        when(server.getVersion()).thenReturn("Purpur 2651 (MC: 26.3)");
+        when(server.getMinecraftVersion()).thenReturn("26.3");
+        when(server.getBukkitVersion()).thenReturn("26.3-R0.1-SNAPSHOT");
+        when(server.isPrimaryThread()).thenReturn(true);
+
+        try (var loader = new Loader(server, dataDirectory)) {
+            JavaPlugin plugin = (JavaPlugin) loader.loadClass("games.dmg.leaf.LeafPlugin")
+                    .getConstructor().newInstance();
+            var constructor = PluginCommand.class.getDeclaredConstructor(
+                    String.class, org.bukkit.plugin.Plugin.class);
+            constructor.setAccessible(true);
+            command.set(constructor.newInstance("leaf", plugin));
+
+            assertEquals("Leaf", plugin.getName());
+            assertEquals("games.dmg.leaf.LeafPlugin", loader.getConfiguration().getMainClass());
+            assertEquals("1.20", loader.getConfiguration().getAPIVersion());
+            assertEquals(Set.of("leaf"), loader.description.getCommands().keySet());
+            assertEquals(Set.of("leaf.use", "leaf.admin"), loader.description.getPermissions().stream()
+                    .map(permission -> permission.getName()).collect(java.util.stream.Collectors.toSet()));
+            assertTrue(loader.description.getDepend().isEmpty());
+            assertEquals(dataDirectory.toFile(), plugin.getDataFolder());
+            assertFalse(plugin.isEnabled());
+
+            plugin.setEnabled(true);
+            try {
+                assertTrue(plugin.isEnabled());
+                assertTrue(Files.isRegularFile(dataDirectory.resolve("config.yml")));
+                assertEquals(List.of("LeafListener"), listeners.stream()
+                        .map(Class::getSimpleName).toList());
+                assertEquals(2, scheduled.size());
+                assertEquals(new Scheduled("LeafRecoveryTask", 20L, 20L), scheduled.get(0));
+                assertEquals(600L, scheduled.get(1).delay());
+                assertEquals(600L, scheduled.get(1).period());
+                assertEquals("LeafCommand", command.get().getExecutor().getClass().getSimpleName());
+                assertSame(command.get().getExecutor(), command.get().getTabCompleter());
+
+                assertEquals(Set.of(PotionEffectType.RESISTANCE, PotionEffectType.STRENGTH), effects.keySet());
+                assertTrue(effects.values().stream().allMatch(effect ->
+                        effect.getDuration() == PotionEffect.INFINITE_DURATION && effect.getAmplifier() == 0));
+                assertEquals("§a🍃 Alex", displayName.get());
+                assertEquals("§a🍃 Alex", playerListName.get());
+                assertTrue(teamCreated.get());
+                assertEquals("§a🍃 ", teamPrefix.get());
+                assertEquals(Set.of("Alex", "Other"), teamEntries);
+
+                CommandSender administrator = mock(CommandSender.class);
+                when(administrator.hasPermission("leaf.admin")).thenReturn(true);
+                assertTrue(command.get().execute(administrator, "leaf", new String[] {
+                        "player", PLAYER_ID.toString(), "locked", "on"
+                }));
+                YamlConfiguration saved = YamlConfiguration.loadConfiguration(stateFile.toFile());
+                String playerPath = "players." + PLAYER_ID;
+                assertTrue(saved.getBoolean(playerPath + ".opted-in"));
+                assertTrue(saved.getBoolean(playerPath + ".locked"));
+                assertEquals("2026-08-10T12:34:56Z", saved.getString(playerPath + ".first-join"));
+                assertEquals("retained", saved.getString("future-root"));
+                assertEquals("retained", saved.getString(playerPath + ".future-player-field"));
+            } finally {
+                plugin.setEnabled(false);
+            }
+            assertFalse(plugin.isEnabled());
+        }
+
+        assertTrue(effects.isEmpty());
+        assertEquals("Alex", displayName.get());
+        assertEquals("Alex", playerListName.get());
+        assertEquals(Set.of("Other"), teamEntries);
+        assertTrue(teamCreated.get(), "Disable preserves the owned scoreboard team itself");
+    }
+
+    static final class Loader extends URLClassLoader implements ConfiguredPluginClassLoader {
+        private static final String PACKAGE = "games.dmg.leaf.";
+        private final Server server;
+        private final Path dataDirectory;
+        private final Path jar = Path.of(System.getProperty("distribution.jar"));
+        private final PluginDescriptionFile description;
+        private JavaPlugin plugin;
+
+        Loader(Server server, Path dataDirectory) throws Exception {
+            super(new URL[] {Path.of(System.getProperty("distribution.jar")).toUri().toURL()},
+                    LeafLifecycleNativeTest.class.getClassLoader());
+            this.server = server;
+            this.dataDirectory = dataDirectory;
+            try (var archive = new JarFile(jar.toFile());
+                 var input = archive.getInputStream(archive.getJarEntry("plugin.yml"))) {
+                description = new PluginDescriptionFile(input);
+            }
+        }
+
+        @Override
+        protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
+            synchronized (getClassLoadingLock(name)) {
+                if (!name.startsWith(PACKAGE) || name.equals(getClass().getName())) {
+                    return super.loadClass(name, resolve);
+                }
+                Class<?> loaded = findLoadedClass(name);
+                if (loaded == null) {
+                    loaded = findClass(name);
+                }
+                if (resolve) {
+                    resolveClass(loaded);
+                }
+                return loaded;
+            }
+        }
+
+        @Override
+        public Class<?> loadClass(String name, boolean resolve, boolean global, boolean libraries)
+                throws ClassNotFoundException {
+            return loadClass(name, resolve);
+        }
+
+        @Override public PluginMeta getConfiguration() { return description; }
+        @Override public JavaPlugin getPlugin() { return plugin; }
+        @Override public PluginClassLoaderGroup getGroup() { return null; }
+
+        @Override
+        public void init(JavaPlugin created) {
+            plugin = created;
+            created.init(server, description, dataDirectory.toFile(), jar.toFile(), this, description,
+                    Logger.getLogger("Leaf lifecycle fixture"));
+        }
+    }
+}

src/nativeTest/java/games/dmg/leaf/NativeRuntime.java

@@ -0,0 +1,68 @@
+package games.dmg.leaf;
+
+import java.util.List;
+import java.util.stream.Stream;
+import net.minecraft.SharedConstants;
+import net.minecraft.commands.Commands;
+import net.minecraft.core.HolderLookup;
+import net.minecraft.core.LayeredRegistryAccess;
+import net.minecraft.core.Registry;
+import net.minecraft.core.RegistryAccess;
+import net.minecraft.resources.Identifier;
+import net.minecraft.resources.RegistryDataLoader;
+import net.minecraft.server.Bootstrap;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.RegistryLayer;
+import net.minecraft.server.ReloadableServerResources;
+import net.minecraft.server.packs.PackType;
+import net.minecraft.server.packs.repository.ServerPacksSource;
+import net.minecraft.server.packs.resources.MultiPackResourceManager;
+import net.minecraft.server.permissions.LevelBasedPermissionSet;
+import net.minecraft.tags.TagLoader;
+import net.minecraft.util.Util;
+import net.minecraft.world.flag.FeatureFlags;
+import net.minecraft.world.level.DataPackConfig;
+import net.minecraft.world.level.WorldDataConfiguration;
+import org.bukkit.craftbukkit.CraftRegistry;
+
+/** Loads the exact Purpur runtime registries needed by the packaged lifecycle fixture. */
+final class NativeRuntime {
+    private static boolean bootstrapped;
+
+    private NativeRuntime() { }
+
+    static synchronized void bootstrap() throws Exception {
+        if (bootstrapped) {
+            return;
+        }
+        SharedConstants.tryDetectVersion();
+        Bootstrap.bootStrap();
+        var flags = FeatureFlags.VANILLA_SET;
+        var packs = ServerPacksSource.createVanillaTrustedRepository();
+        MinecraftServer.configurePackRepository(packs, new WorldDataConfiguration(new DataPackConfig(
+                FeatureFlags.REGISTRY.toNames(flags).stream().map(Identifier::getPath).toList(),
+                List.of()), flags), true, false);
+        try (var resources = new MultiPackResourceManager(PackType.SERVER_DATA, packs.openAllSelected())) {
+            LayeredRegistryAccess<RegistryLayer> layers = RegistryLayer.createRegistryAccess();
+            List<Registry.PendingTags<?>> tags = TagLoader.loadTagsForExistingRegistries(
+                    resources, layers.getLayer(RegistryLayer.STATIC));
+            List<HolderLookup.RegistryLookup<?>> lookups = TagLoader.buildUpdatedLookups(
+                    layers.getAccessForLoading(RegistryLayer.WORLD), tags);
+            RegistryAccess.Frozen world = RegistryDataLoader.load(resources, lookups,
+                    RegistryDataLoader.WORLD_REGISTRIES, Util.backgroundExecutor()).join();
+            layers = layers.replaceFrom(RegistryLayer.WORLD, world);
+            RegistryAccess.Frozen dimensions = RegistryDataLoader.load(resources,
+                    Stream.concat(lookups.stream(), world.listRegistries()).toList(),
+                    RegistryDataLoader.DIMENSION_REGISTRIES, Util.backgroundExecutor()).join();
+            layers = layers.replaceFrom(RegistryLayer.DIMENSIONS, dimensions);
+            Class.forName(org.bukkit.Registry.class.getName());
+            var datapack = ReloadableServerResources.loadResources(resources, layers, tags, flags,
+                    Commands.CommandSelection.DEDICATED, LevelBasedPermissionSet.ALL_PERMISSIONS,
+                    Util.backgroundExecutor(), Runnable::run).join();
+            datapack.updateComponentsAndStaticRegistryTags();
+            CraftRegistry.setMinecraftRegistry(layers.compositeAccess().freeze());
+            datapack.getRecipeManager().finalizeRecipeLoading(flags);
+        }
+        bootstrapped = true;
+    }
+}

src/test/java/games/dmg/leaf/PurpurDistributionTest.java

@@ -6,6 +6,7 @@ import java.io.DataInputStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Map;
+import java.util.Set;
 import java.util.jar.JarFile;
 import org.junit.jupiter.api.Test;
 import org.yaml.snakeyaml.Yaml;
@@ -21,9 +22,21 @@ class PurpurDistributionTest {
             assertEquals(version, metadata.get("version"));
             assertEquals("Leaf", metadata.get("name"), "Retain the data directory and persistent namespace");
             assertEquals("games.dmg.leaf.LeafPlugin", metadata.get("main"));
-            assertTrue(((Map<?, ?>) metadata.get("permissions")).containsKey("leaf.admin"));
+            assertEquals("1.20", metadata.get("api-version"));
+            assertEquals(Set.of("leaf"), ((Map<?, ?>) metadata.get("commands")).keySet());
+            Map<?, ?> permissions = (Map<?, ?>) metadata.get("permissions");
+            assertEquals(Set.of("leaf.use", "leaf.admin"), permissions.keySet());
+            assertEquals(true, ((Map<?, ?>) permissions.get("leaf.use")).get("default"));
+            assertEquals("op", ((Map<?, ?>) permissions.get("leaf.admin")).get("default"));
+            assertNull(metadata.get("depend"));
             assertFalse(jar.stream().anyMatch(entry -> entry.getName().startsWith("org/bukkit/")
-                || entry.getName().startsWith("org/purpurmc/") || entry.getName().endsWith("Test.class")));
+                || entry.getName().startsWith("org/purpurmc/")
+                || entry.getName().startsWith("io/papermc/")
+                || entry.getName().startsWith("org/spigotmc/")
+                || entry.getName().startsWith("net/minecraft/")
+                || entry.getName().startsWith("com/comphenix/")
+                || entry.getName().endsWith("Test.class")
+                || entry.getName().contains("NativeRuntime")));
         }
     }
 
@@ -39,10 +52,21 @@ class PurpurDistributionTest {
     }
 
     @Test
-    void releaseAndCiAgreeWithThePurpurDistributionNameAndToolchain() throws Exception {
+    void releaseAndCiAgreeWithTheExactPurpurRuntimeAndToolchain() throws Exception {
         String build = Files.readString(Path.of("build.gradle.kts"));
-        assertTrue(build.contains("purpur-api:26.2.build.2618-stable"));
+        assertTrue(build.contains("purpur-api:26.3.build.2651-stable"));
+        assertTrue(build.contains("purpur-26.3-2651.jar"));
+        assertTrue(build.contains("https://api.purpurmc.org/v2/purpur/26.3/2651/download"));
+        assertTrue(build.contains("0677c1febecfbc2e5b0a7f76abd647b70a1f38d3cbdf3dd6a82e401b4262a598"));
+        assertFalse(build.contains("26.2") || build.contains("2618"));
         assertFalse(build.contains("org.spigotmc:spigot-api"));
+        assertTrue(build.contains("nativeLifecycleTest"));
+        assertTrue(build.contains("tasks.check { dependsOn(nativeLifecycleTest) }"));
+        String readme = Files.readString(Path.of("README.md"));
+        assertTrue(readme.contains("Purpur 26.3 build 2651"));
+        assertTrue(readme.contains("nativeLifecycleTest"));
+        assertTrue(readme.contains("0677c1febecfbc2e5b0a7f76abd647b70a1f38d3cbdf3dd6a82e401b4262a598"));
+        assertFalse(readme.contains("26.2") || readme.contains("2618"));
         for (String workflow : new String[] {"ci.yml", "release.yml"}) {
             String content = Files.readString(Path.of(".gitea/workflows", workflow));
             assertTrue(content.contains("java-version: 25"));