diff --git a/src-ui/app/_app_controllers/PluginsController.jsx b/src-ui/app/_app_controllers/PluginsController.jsx
index 2fad4376..98327baf 100644
--- a/src-ui/app/_app_controllers/PluginsController.jsx
+++ b/src-ui/app/_app_controllers/PluginsController.jsx
@@ -15,6 +15,7 @@ export const PluginsController = ({ fetchPluginsHasRunRef }) => {
         updatePluginsData,
         currentSavedPluginsStatus,
         updateIsPluginsInitialized,
+        downloadAndExtractPlugin,
     } = usePlugins();
 
     useEffect(() => {
@@ -36,19 +37,19 @@ export const PluginsController = ({ fetchPluginsHasRunRef }) => {
                                 const is_latest_version_available = !(target_downloaded_plugin.plugin_version === info.plugin_version);
 
                                 new_plugin_info = {
-                                    is_downloaded: true,
-                                    is_latest_version_already: (target_downloaded_plugin.downloaded_plugin_info?.plugin_version === info.plugin_version),
-                                    is_latest_version_available: is_latest_version_available,
-                                    latest_plugin_info: { ...info },
                                     ...target_downloaded_plugin,
+                                    is_downloaded: true,
+                                    latest_plugin_info: { ...info },
+                                    is_latest_version_available: is_latest_version_available,
+                                    is_latest_version_already: (target_downloaded_plugin.downloaded_plugin_info?.plugin_version === info.plugin_version),
                                 };
                             } else { // infoにもあり登録済みだがダウンロードされていない
                                 new_plugin_info = {
+                                    ...target_downloaded_plugin,
                                     is_downloaded: false,
                                     is_latest_version_already: false,
                                     is_latest_version_available: info.is_latest_version_available,
                                     latest_plugin_info: { ...info },
-                                    ...target_downloaded_plugin,
                                 }
                             }
                         } else { // 未ダウンロード
@@ -75,8 +76,29 @@ export const PluginsController = ({ fetchPluginsHasRunRef }) => {
                             plugin.is_latest_version_available = (plugin.latest_plugin_info.is_plugin_supported);
                         }
                     });
+
+                    // ダウンロード済みで最新版じゃない場合、自動的にアップデート
+                    // is_latest_version_supported: true のみ。
+                    // 失敗した場合、現在のバージョンが非対応の場合はdisabledにする。
+                    new_data.forEach(async plugin =>  {
+                        if (plugin.is_enabled) {
+                            if (!plugin.is_latest_version_already && plugin.is_latest_version_available) {
+                                await downloadAndExtractPlugin(plugin);
+                            }
+                        }
+                    });
+
+                    new_data.forEach(async plugin =>  {
+                        if (plugin.is_enabled) {
+                            if (!plugin.downloaded_plugin_info?.is_plugin_supported) {
+                                plugin.is_enabled = false
+                            }
+                        }
+                    });
+
                     return new_data;
                 });
+
             } catch (error) {
                 console.error(error);
             }
diff --git a/src-ui/app/config_page/setting_section/setting_box/_components/plugins_control_component/PluginsControlComponent.jsx b/src-ui/app/config_page/setting_section/setting_box/_components/plugins_control_component/PluginsControlComponent.jsx
index 4408d6cc..e6ddd500 100644
--- a/src-ui/app/config_page/setting_section/setting_box/_components/plugins_control_component/PluginsControlComponent.jsx
+++ b/src-ui/app/config_page/setting_section/setting_box/_components/plugins_control_component/PluginsControlComponent.jsx
@@ -52,7 +52,14 @@ const DownloadedPluginControl = ({
 
     const latest_version = plugin_status.latest_plugin_info?.plugin_version;
 
-    if (plugin_status.is_latest_version_already) {
+
+    if (!plugin_status.downloaded_plugin_info.is_plugin_supported) {
+        return (
+            <div className={styles.container}>
+                <p>現在利用不可 使用中VRCTバージョンとの互換性なし</p>
+            </div>
+        );
+    } else if (plugin_status.is_latest_version_already) {
         return (
             <div className={styles.container}>
                 <p>最新のバージョン: {latest_version}</p>
@@ -72,7 +79,7 @@ const DownloadedPluginControl = ({
     } else {
         return (
             <div className={styles.container}>
-                <p>最新のバージョン: {latest_version}</p>
+                <p>最新版は現在利用不可</p>
                 <SwitchBox variable={option} toggleFunction={togglePlugin} />
             </div>
         );
@@ -90,6 +97,13 @@ const NotDownloadedPluginControl = ({ option, plugin_status, downloadStartFuncti
                 <_DownloadButton option={option} downloadStartFunction={downloadStartFunction} />
             </div>
         );
+    } else if (plugin_status.latest_plugin_info?.is_plugin_supported_latest_vrct) {
+        return (
+            <div className={styles.container}>
+                <p>最新のバージョン: {latest_version}</p>
+                <p>VRCT最新版で利用可能</p>
+            </div>
+        );
     } else {
         return (
             <div className={styles.container}>
diff --git a/src-ui/logics/configs/plugins/usePlugins.js b/src-ui/logics/configs/plugins/usePlugins.js
index ef1acd04..9f1be315 100644
--- a/src-ui/logics/configs/plugins/usePlugins.js
+++ b/src-ui/logics/configs/plugins/usePlugins.js
@@ -52,12 +52,14 @@ export const usePlugins = () => {
                     let new_value = {};
                     const { is_plugin_supported, is_plugin_supported_latest_vrct } = checkVrctVerCompatibility(downloaded_plugin_info.min_supported_vrct_version, downloaded_plugin_info.max_supported_vrct_version);
 
-                    if (!prev_map.has(downloaded_plugin_info.plugin_id)) { // 未ダウンロード 新規登録
+                    const target_plugin = prev_map.get(downloaded_plugin_info.plugin_id);
+                    if (!target_plugin) { // 未ダウンロード 新規登録
                         new_value = {
                             plugin_id: downloaded_plugin_info.plugin_id,
                             component: component,
                             is_downloaded: true,
                             is_latest_version_available: false,
+                            is_latest_version_already: true,
                             downloaded_plugin_info: {
                                 ...downloaded_plugin_info,
                                 component: component,
@@ -70,9 +72,7 @@ export const usePlugins = () => {
 
                     for (const old_plugin_data of prev.data) {
 
-                        if (prev_map.has(downloaded_plugin_info.plugin_id) && old_plugin_data.plugin_id === downloaded_plugin_info.plugin_id) { // ダウンロード済み アップデート
-
-
+                        if (old_plugin_data.plugin_id === downloaded_plugin_info.plugin_id) { // ダウンロード済み or 登録済 アップデート
                             const target_prev_plugin = prev_map.get(downloaded_plugin_info.plugin_id);
                             const is_latest_version_available = (target_prev_plugin.is_downloaded) && !(downloaded_plugin_info.plugin_version === target_prev_plugin.latest_plugin_info.plugin_version);
 
@@ -82,6 +82,7 @@ export const usePlugins = () => {
                                 component: component,
                                 is_downloaded: true,
                                 is_latest_version_available: is_latest_version_available,
+                                is_latest_version_already: (target_plugin.plugin_version === old_plugin_data.latest_plugin_info?.plugin_info),
                                 downloaded_plugin_info: {
                                     ...downloaded_plugin_info,
                                     component: component,
@@ -168,6 +169,7 @@ export const usePlugins = () => {
         const latest_plugin_info =  plugin.latest_plugin_info;
         try {
             const plugin_zip_url = await fetchLatestPluginZipUrl(latest_plugin_info);
+            console.log("start download", plugin_zip_url);
             // Rust コマンド経由で ZIP をダウンロード
             const base64_zip = await invoke("download_zip_asset", { url: plugin_zip_url });
             // base64_zip をデコードして Uint8Array に変換
diff --git a/src-ui/ui_configs.js b/src-ui/ui_configs.js
index f5f89b0c..6db3193f 100644
--- a/src-ui/ui_configs.js
+++ b/src-ui/ui_configs.js
@@ -53,6 +53,7 @@ export const ui_configs = {
 };
 
 export const IS_PLUGIN_DEV_MODE = false;
+if (IS_PLUGIN_DEV_MODE) console.warn("ui_configs IS_PLUGIN_DEV_MODE: true. Turn to 'false' when it's production environment.");
 export const getPluginsList = () => {
     const base_url = "https://raw.githubusercontent.com/ShiinaSakamoto/vrct_plugins_list/main/";
     const plugins_list_url = (IS_PLUGIN_DEV_MODE)