diff --git a/core/pom.xml b/core/pom.xml
index 611f04b..b836d23 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyconfiguration-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>4.0.3</version>
+        <version>4.0.4</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <properties>
diff --git a/demo/pom.xml b/demo/pom.xml
index d6dfc7f..3540607 100644
--- a/demo/pom.xml
+++ b/demo/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyconfiguration-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>4.0.3</version>
+        <version>4.0.4</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <properties>
diff --git a/features/commentable/pom.xml b/features/commentable/pom.xml
index 102b7d1..b9d3026 100644
--- a/features/commentable/pom.xml
+++ b/features/commentable/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>cc.carm.lib</groupId>
         <artifactId>easyconfiguration-parent</artifactId>
-        <version>4.0.3</version>
+        <version>4.0.4</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <properties>
diff --git a/features/file/pom.xml b/features/file/pom.xml
index 4186f36..b5d1d3c 100644
--- a/features/file/pom.xml
+++ b/features/file/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>cc.carm.lib</groupId>
         <artifactId>easyconfiguration-parent</artifactId>
-        <version>4.0.3</version>
+        <version>4.0.4</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <properties>
diff --git a/features/section/pom.xml b/features/section/pom.xml
index dc878fc..7e7d672 100644
--- a/features/section/pom.xml
+++ b/features/section/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>cc.carm.lib</groupId>
         <artifactId>easyconfiguration-parent</artifactId>
-        <version>4.0.3</version>
+        <version>4.0.4</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <properties>
diff --git a/features/section/src/main/java/cc/carm/lib/configuration/source/section/MapSection.java b/features/section/src/main/java/cc/carm/lib/configuration/source/section/MapSection.java
index 8774d7d..5730c79 100644
--- a/features/section/src/main/java/cc/carm/lib/configuration/source/section/MapSection.java
+++ b/features/section/src/main/java/cc/carm/lib/configuration/source/section/MapSection.java
@@ -10,9 +10,12 @@ public abstract class MapSection<R extends MapSection<R>> implements ConfigureSe
     protected final @NotNull Map<String, Object> data;
     protected final @Nullable R parent;
 
-    protected MapSection(@NotNull Map<?, ?> data, @Nullable R parent) {
+    protected MapSection(@Nullable R parent) {
         this.parent = parent;
         this.data = new LinkedHashMap<>();
+    }
+
+    public void migrate(Map<?, ?> data) {
         for (Map.Entry<?, ?> entry : data.entrySet()) {
             String key = (entry.getKey() == null) ? "null" : entry.getKey().toString();
             if (entry.getValue() instanceof Map) {
diff --git a/features/section/src/main/java/cc/carm/lib/configuration/source/section/MemorySection.java b/features/section/src/main/java/cc/carm/lib/configuration/source/section/MemorySection.java
index 55c33f7..d184057 100644
--- a/features/section/src/main/java/cc/carm/lib/configuration/source/section/MemorySection.java
+++ b/features/section/src/main/java/cc/carm/lib/configuration/source/section/MemorySection.java
@@ -8,22 +8,22 @@ import java.util.Map;
 
 public class MemorySection extends MapSection<MemorySection> {
 
-
     public static @NotNull MemorySection root(@NotNull ConfigureSource<? extends MemorySection, ?, ?> source) {
         return new MemorySection(source, new LinkedHashMap<>(), null);
     }
 
     public static @NotNull MemorySection root(@NotNull ConfigureSource<? extends MemorySection, ?, ?> source,
-                                              @Nullable Map<?, ?> data) {
-        return new MemorySection(source, data == null ? new LinkedHashMap<>() : data, null);
+                                              @Nullable Map<?, ?> raw) {
+        return new MemorySection(source, raw == null ? new LinkedHashMap<>() : raw, null);
     }
 
     protected final @NotNull ConfigureSource<? extends MemorySection, ?, ?> source;
 
     protected MemorySection(@NotNull ConfigureSource<? extends MemorySection, ?, ?> source,
-                            @NotNull Map<?, ?> data, @Nullable MemorySection parent) {
-        super(data, parent);
+                            @NotNull Map<?, ?> raw, @Nullable MemorySection parent) {
+        super(parent);
         this.source = source;
+        migrate(raw);
     }
 
     public @NotNull ConfigureSource<? extends MemorySection, ?, ?> source() {
@@ -32,7 +32,7 @@ public class MemorySection extends MapSection<MemorySection> {
 
     @Override
     public char pathSeparator() {
-        return source.pathSeparator();
+        return source().pathSeparator();
     }
 
     @Override
@@ -42,7 +42,7 @@ public class MemorySection extends MapSection<MemorySection> {
 
     @Override
     protected @NotNull MemorySection createChild(@NotNull Map<?, ?> data) {
-        return new MemorySection(source, data, this);
+        return new MemorySection(source(), data, this);
     }
 
 }
diff --git a/features/text/pom.xml b/features/text/pom.xml
index 9a310ea..b13b35a 100644
--- a/features/text/pom.xml
+++ b/features/text/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>cc.carm.lib</groupId>
         <artifactId>easyconfiguration-parent</artifactId>
-        <version>4.0.3</version>
+        <version>4.0.4</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <properties>
diff --git a/features/versioned/pom.xml b/features/versioned/pom.xml
index 531c607..3e47eaa 100644
--- a/features/versioned/pom.xml
+++ b/features/versioned/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>cc.carm.lib</groupId>
         <artifactId>easyconfiguration-parent</artifactId>
-        <version>4.0.3</version>
+        <version>4.0.4</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <properties>
diff --git a/pom.xml b/pom.xml
index 90888c5..b686c37 100644
--- a/pom.xml
+++ b/pom.xml
@@ -15,7 +15,7 @@
     <groupId>cc.carm.lib</groupId>
     <artifactId>easyconfiguration-parent</artifactId>
     <packaging>pom</packaging>
-    <version>4.0.3</version>
+    <version>4.0.4</version>
     <modules>
         <module>core</module>
         <module>features/section</module>
diff --git a/providers/gson/pom.xml b/providers/gson/pom.xml
index 24f17e1..eff5e06 100644
--- a/providers/gson/pom.xml
+++ b/providers/gson/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyconfiguration-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>4.0.3</version>
+        <version>4.0.4</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/providers/gson/src/main/java/cc/carm/lib/configuration/source/json/JSONSource.java b/providers/gson/src/main/java/cc/carm/lib/configuration/source/json/JSONSource.java
index 0a0448d..22e8f50 100644
--- a/providers/gson/src/main/java/cc/carm/lib/configuration/source/json/JSONSource.java
+++ b/providers/gson/src/main/java/cc/carm/lib/configuration/source/json/JSONSource.java
@@ -2,7 +2,7 @@ package cc.carm.lib.configuration.source.json;
 
 import cc.carm.lib.configuration.source.ConfigurationHolder;
 import cc.carm.lib.configuration.source.file.FileConfigSource;
-import cc.carm.lib.configuration.source.section.MapSection;
+import cc.carm.lib.configuration.source.section.MemorySection;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.gson.JsonSerializer;
@@ -14,17 +14,17 @@ import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.Objects;
 
-public class JSONSource extends FileConfigSource<MapSection, Map<String, Object>, JSONSource> {
+public class JSONSource extends FileConfigSource<MemorySection, Map<String, Object>, JSONSource> {
 
     public static final @NotNull Gson DEFAULT_GSON = new GsonBuilder()
             .serializeNulls().disableHtmlEscaping().setPrettyPrinting()
             .registerTypeAdapter(
-                    MapSection.class,
-                    (JsonSerializer<MapSection>) (src, t, c) -> c.serialize(src.data())
+                    MemorySection.class,
+                    (JsonSerializer<MemorySection>) (src, t, c) -> c.serialize(src.data())
             ).create();
 
     protected final @NotNull Gson gson;
-    protected @Nullable MapSection rootSection;
+    protected @Nullable MemorySection rootSection;
 
     protected JSONSource(@NotNull ConfigurationHolder<? extends JSONSource> holder,
                          @NotNull File file, @Nullable String resourcePath) {
@@ -58,7 +58,7 @@ public class JSONSource extends FileConfigSource<MapSection, Map<String, Object>
     }
 
     @Override
-    public @NotNull MapSection section() {
+    public @NotNull MemorySection section() {
         return Objects.requireNonNull(this.rootSection, "Root section is not initialized");
     }
 
@@ -70,7 +70,7 @@ public class JSONSource extends FileConfigSource<MapSection, Map<String, Object>
     @Override
     protected void onReload() throws Exception {
         Map<?, ?> data = fileReader(reader -> gson.fromJson(reader, LinkedHashMap.class));
-        this.rootSection = MapSection.root(this, data);
+        this.rootSection = MemorySection.root(this, data);
         this.lastUpdateMillis = System.currentTimeMillis(); // 更新时间
     }
 
diff --git a/providers/yaml/pom.xml b/providers/yaml/pom.xml
index a6dd4ad..2e0ac0d 100644
--- a/providers/yaml/pom.xml
+++ b/providers/yaml/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <artifactId>easyconfiguration-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>4.0.3</version>
+        <version>4.0.4</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <properties>