path: root/0002-Cleanup.patch

From 08b7e6cd2ccb3576a067542923c44f4f42494825 Mon Sep 17 00:00:00 2001
From: Aviana Cruz <gwencroft@proton.me>
Date: Sun, 6 Nov 2022 13:33:14 +0800
Subject: [PATCH 2/3] Cleanup

Co-authored-by: zhaose <weiliang1503@outlook.com>
Signed-off-by: Aviana Cruz <gwencroft@proton.me>
---
 .../java/org/jackhuang/hmcl/Launcher.java     |   8 -
 .../java/org/jackhuang/hmcl/Metadata.java     |   1 -
 .../jackhuang/hmcl/setting/ConfigHolder.java  |   1 -
 .../org/jackhuang/hmcl/ui/Controllers.java    |   4 -
 .../org/jackhuang/hmcl/ui/CrashWindow.java    |   6 +-
 .../org/jackhuang/hmcl/ui/UpgradeDialog.java  |  77 ---
 .../jackhuang/hmcl/ui/main/FeedbackPage.java  | 470 ------------------
 .../hmcl/ui/main/LauncherSettingsPage.java    |  22 +-
 .../org/jackhuang/hmcl/ui/main/MainPage.java  | 117 +----
 .../org/jackhuang/hmcl/ui/main/RootPage.java  |  17 -
 .../jackhuang/hmcl/ui/main/SettingsPage.java  |  60 ---
 .../jackhuang/hmcl/ui/main/SettingsView.java  |  58 ---
 .../jackhuang/hmcl/ui/main/SponsorPage.java   | 174 -------
 .../hmcl/upgrade/ExecutableHeaderHelper.java  | 123 -----
 .../hmcl/upgrade/HMCLDownloadTask.java        |  68 ---
 .../hmcl/upgrade/IntegrityChecker.java        | 134 -----
 .../jackhuang/hmcl/upgrade/RemoteVersion.java |  96 ----
 .../jackhuang/hmcl/upgrade/UpdateChannel.java |  42 --
 .../jackhuang/hmcl/upgrade/UpdateChecker.java | 125 -----
 .../jackhuang/hmcl/upgrade/UpdateHandler.java | 257 ----------
 .../jackhuang/hmcl/util/CrashReporter.java    |   5 -
 21 files changed, 3 insertions(+), 1862 deletions(-)
 delete mode 100644 HMCL/src/main/java/org/jackhuang/hmcl/ui/UpgradeDialog.java
 delete mode 100644 HMCL/src/main/java/org/jackhuang/hmcl/ui/main/FeedbackPage.java
 delete mode 100644 HMCL/src/main/java/org/jackhuang/hmcl/ui/main/SponsorPage.java
 delete mode 100644 HMCL/src/main/java/org/jackhuang/hmcl/upgrade/ExecutableHeaderHelper.java
 delete mode 100644 HMCL/src/main/java/org/jackhuang/hmcl/upgrade/HMCLDownloadTask.java
 delete mode 100644 HMCL/src/main/java/org/jackhuang/hmcl/upgrade/IntegrityChecker.java
 delete mode 100644 HMCL/src/main/java/org/jackhuang/hmcl/upgrade/RemoteVersion.java
 delete mode 100644 HMCL/src/main/java/org/jackhuang/hmcl/upgrade/UpdateChannel.java
 delete mode 100644 HMCL/src/main/java/org/jackhuang/hmcl/upgrade/UpdateChecker.java
 delete mode 100644 HMCL/src/main/java/org/jackhuang/hmcl/upgrade/UpdateHandler.java

diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/Launcher.java b/HMCL/src/main/java/org/jackhuang/hmcl/Launcher.java
index e5aecd61..7d260abc 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/Launcher.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/Launcher.java
@@ -29,8 +29,6 @@ import org.jackhuang.hmcl.setting.SambaException;
 import org.jackhuang.hmcl.task.AsyncTaskExecutor;
 import org.jackhuang.hmcl.task.Schedulers;
 import org.jackhuang.hmcl.ui.Controllers;
-import org.jackhuang.hmcl.upgrade.UpdateChecker;
-import org.jackhuang.hmcl.upgrade.UpdateHandler;
 import org.jackhuang.hmcl.util.CrashReporter;
 import org.jackhuang.hmcl.util.Lang;
 import org.jackhuang.hmcl.util.StringUtils;
@@ -129,8 +127,6 @@ public final class Launcher extends Application {
                 Platform.setImplicitExit(false);
                 Controllers.initialize(primaryStage);
 
-                UpdateChecker.init();
-
                 primaryStage.show();
             });
         } catch (Throwable e) {
@@ -145,10 +141,6 @@ public final class Launcher extends Application {
     }
 
     public static void main(String[] args) {
-        if (UpdateHandler.processArguments(args)) {
-            return;
-        }
-
         Thread.setDefaultUncaughtExceptionHandler(CRASH_REPORTER);
         AsyncTaskExecutor.setUncaughtExceptionHandler(new CrashReporter(false));
 
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/Metadata.java b/HMCL/src/main/java/org/jackhuang/hmcl/Metadata.java
index f24a2d47..7f49a55f 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/Metadata.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/Metadata.java
@@ -35,7 +35,6 @@ public final class Metadata {
     public static final String TITLE = NAME + " " + VERSION;
     public static final String FULL_TITLE = FULL_NAME + " v" + VERSION;
 
-    public static final String UPDATE_URL = System.getProperty("hmcl.update_source.override", "https://hmcl.huangyuhui.net/api/update_link");
     public static final String CONTACT_URL = "https://github.com/huanghongxun/HMCL/issues";
     public static final String HELP_URL = "https://hmcl.huangyuhui.net/help";
     public static final String CHANGELOG_URL = "https://docs.hmcl.net/changelog/";
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/setting/ConfigHolder.java b/HMCL/src/main/java/org/jackhuang/hmcl/setting/ConfigHolder.java
index 17342bcd..f7572c81 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/setting/ConfigHolder.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/setting/ConfigHolder.java
@@ -169,7 +169,6 @@ public final class ConfigHolder {
                     LOG.info("Config is empty");
                 } else {
                     Map<?, ?> raw = new Gson().fromJson(content, Map.class);
-                    ConfigUpgrader.upgradeConfig(deserialized, raw);
                     return deserialized;
                 }
             } catch (JsonParseException e) {
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java
index 6b13766f..af18ea1b 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java
@@ -304,10 +304,6 @@ public final class Controllers {
 
     public static void onHyperlinkAction(String href) {
         if (href.startsWith("hmcl://")) {
-            if ("hmcl://settings/feedback".equals(href)) {
-                Controllers.getSettingsPage().showFeedback();
-                Controllers.navigate(Controllers.getSettingsPage());
-            }
         } else {
             FXUtils.openLink(href);
         }
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/CrashWindow.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/CrashWindow.java
index 46ce19ab..daafd6f6 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/CrashWindow.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/CrashWindow.java
@@ -27,7 +27,6 @@ import javafx.scene.layout.HBox;
 import javafx.scene.layout.StackPane;
 import javafx.stage.Stage;
 import org.jackhuang.hmcl.Metadata;
-import org.jackhuang.hmcl.upgrade.UpdateChecker;
 
 import static org.jackhuang.hmcl.ui.FXUtils.newImage;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
@@ -39,10 +38,7 @@ public class CrashWindow extends Stage {
 
     public CrashWindow(String text) {
         Label lblCrash = new Label();
-        if (UpdateChecker.isOutdated())
-            lblCrash.setText(i18n("launcher.crash_out_dated"));
-        else
-            lblCrash.setText(i18n("launcher.crash"));
+        lblCrash.setText(i18n("launcher.crash"));
         lblCrash.setWrapText(true);
 
         TextArea textArea = new TextArea();
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/UpgradeDialog.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/UpgradeDialog.java
deleted file mode 100644
index b43133a1..00000000
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/UpgradeDialog.java
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Hello Minecraft! Launcher
- * Copyright (C) 2021  huangyuhui <huanghongxun2008@126.com> and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-package org.jackhuang.hmcl.ui;
-
-import com.jfoenix.controls.JFXButton;
-import com.jfoenix.controls.JFXDialogLayout;
-import javafx.concurrent.Worker;
-import javafx.scene.control.Label;
-import javafx.scene.web.WebEngine;
-import javafx.scene.web.WebView;
-import org.jackhuang.hmcl.Metadata;
-import org.jackhuang.hmcl.ui.construct.DialogCloseEvent;
-import org.jackhuang.hmcl.upgrade.RemoteVersion;
-
-import java.util.logging.Level;
-
-import static org.jackhuang.hmcl.Metadata.CHANGELOG_URL;
-import static org.jackhuang.hmcl.ui.FXUtils.onEscPressed;
-import static org.jackhuang.hmcl.util.Logging.LOG;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-public class UpgradeDialog extends JFXDialogLayout {
-    public UpgradeDialog(RemoteVersion remoteVersion, Runnable updateRunnable) {
-        {
-            setHeading(new Label(i18n("update.changelog")));
-        }
-
-        {
-            String url = CHANGELOG_URL + remoteVersion.getChannel().channelName + ".html#nowchange";
-            try {
-                WebView webView = new WebView();
-                webView.getEngine().setUserDataDirectory(Metadata.HMCL_DIRECTORY.toFile());
-                WebEngine engine = webView.getEngine();
-                engine.load(url);
-                engine.getLoadWorker().stateProperty().addListener((observable, oldValue, newValue) -> {
-                    if (newValue == Worker.State.FAILED) {
-                        LOG.warning("Failed to load update log, trying to open it in browser");
-                        FXUtils.openLink(url);
-                        setBody();
-                    }
-                });
-                setBody(webView);
-            } catch (NoClassDefFoundError | UnsatisfiedLinkError e) {
-                LOG.log(Level.WARNING, "WebView is missing or initialization failed", e);
-                FXUtils.openLink(url);
-            }
-        }
-
-        {
-            JFXButton updateButton = new JFXButton(i18n("update.accept"));
-            updateButton.getStyleClass().add("dialog-accept");
-            updateButton.setOnMouseClicked(e -> updateRunnable.run());
-
-            JFXButton cancelButton = new JFXButton(i18n("button.cancel"));
-            cancelButton.getStyleClass().add("dialog-cancel");
-            cancelButton.setOnMouseClicked(e -> fireEvent(new DialogCloseEvent()));
-
-            setActions(updateButton, cancelButton);
-            onEscPressed(this, cancelButton::fire);
-        }
-    }
-}
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/FeedbackPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/FeedbackPage.java
deleted file mode 100644
index bca7f749..00000000
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/FeedbackPage.java
+++ /dev/null
@@ -1,470 +0,0 @@
-/*
- * Hello Minecraft! Launcher
- * Copyright (C) 2021  huangyuhui <huanghongxun2008@126.com> and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-package org.jackhuang.hmcl.ui.main;
-
-import com.google.gson.JsonParseException;
-import com.google.gson.annotations.SerializedName;
-import com.google.gson.reflect.TypeToken;
-import com.jfoenix.controls.*;
-import javafx.beans.binding.Bindings;
-import javafx.beans.property.BooleanProperty;
-import javafx.beans.property.SimpleBooleanProperty;
-import javafx.collections.FXCollections;
-import javafx.collections.ObservableList;
-import javafx.geometry.Insets;
-import javafx.geometry.Pos;
-import javafx.scene.control.Label;
-import javafx.scene.layout.*;
-import org.apache.commons.lang3.mutable.MutableObject;
-import org.jackhuang.hmcl.Metadata;
-import org.jackhuang.hmcl.game.OAuthServer;
-import org.jackhuang.hmcl.setting.Accounts;
-import org.jackhuang.hmcl.setting.HMCLAccounts;
-import org.jackhuang.hmcl.setting.Theme;
-import org.jackhuang.hmcl.task.Schedulers;
-import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.ui.Controllers;
-import org.jackhuang.hmcl.ui.FXUtils;
-import org.jackhuang.hmcl.ui.SVG;
-import org.jackhuang.hmcl.ui.construct.*;
-import org.jackhuang.hmcl.util.StringUtils;
-import org.jackhuang.hmcl.util.io.HttpRequest;
-import org.jackhuang.hmcl.util.io.NetworkUtils;
-import org.jackhuang.hmcl.util.io.ResponseCodeException;
-import org.jackhuang.hmcl.util.javafx.BindingMapping;
-
-import java.io.IOException;
-import java.net.HttpURLConnection;
-import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-
-import static org.jackhuang.hmcl.ui.FXUtils.onEscPressed;
-import static org.jackhuang.hmcl.ui.FXUtils.stringConverter;
-import static org.jackhuang.hmcl.util.Lang.mapOf;
-import static org.jackhuang.hmcl.util.Pair.pair;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-public class FeedbackPage extends VBox implements PageAware {
-    private final ObservableList<FeedbackResponse> feedbacks = FXCollections.observableArrayList();
-    private final SpinnerPane spinnerPane = new SpinnerPane();
-
-    public FeedbackPage() {
-        setSpacing(10);
-        setPadding(new Insets(10));
-
-        {
-            HBox loginPane = new HBox(16);
-            loginPane.setAlignment(Pos.CENTER_LEFT);
-            loginPane.getStyleClass().add("card");
-
-            TwoLineListItem accountInfo = new TwoLineListItem();
-            HBox.setHgrow(accountInfo, Priority.ALWAYS);
-            accountInfo.titleProperty().bind(BindingMapping.of(HMCLAccounts.accountProperty())
-                    .map(account -> account == null ? i18n("account.not_logged_in") : account.getNickname()));
-            accountInfo.subtitleProperty().bind(BindingMapping.of(HMCLAccounts.accountProperty())
-                    .map(account -> account == null ? i18n("account.not_logged_in") : account.getEmail()));
-
-            JFXButton logButton = new JFXButton();
-            logButton.textProperty().bind(BindingMapping.of(HMCLAccounts.accountProperty())
-                    .map(account -> account == null ? i18n("account.login") : i18n("account.logout")));
-            logButton.setOnAction(e -> log());
-
-            loginPane.getChildren().setAll(accountInfo, logButton);
-            getChildren().add(loginPane);
-        }
-
-        {
-            HBox searchPane = new HBox(8);
-            searchPane.getStyleClass().add("card");
-            getChildren().add(searchPane);
-
-            JFXTextField searchField = new JFXTextField();
-            searchField.setOnAction(e -> search(searchField.getText(), "time", true));
-            HBox.setHgrow(searchField, Priority.ALWAYS);
-            searchField.setPromptText(i18n("search"));
-
-            JFXButton searchButton = new JFXButton();
-            searchButton.getStyleClass().add("toggle-icon4");
-            searchButton.setGraphic(SVG.magnify(Theme.blackFillBinding(), -1, -1));
-            searchButton.setOnAction(e -> search(searchField.getText(), "time", true));
-
-            JFXButton addButton = new JFXButton();
-            addButton.getStyleClass().add("toggle-icon4");
-            addButton.setGraphic(SVG.plus(Theme.blackFillBinding(), -1, -1));
-            addButton.setOnAction(e -> addFeedback());
-
-            searchPane.getChildren().setAll(searchField, searchButton, addButton);
-        }
-
-        {
-            spinnerPane.getStyleClass().add("card");
-            VBox.setVgrow(spinnerPane, Priority.ALWAYS);
-            JFXListView<FeedbackResponse> listView = new JFXListView<>();
-            spinnerPane.setContent(listView);
-            Bindings.bindContent(listView.getItems(), feedbacks);
-            MutableObject<Object> lastCell = new MutableObject<>();
-            listView.setCellFactory(x -> new MDListCell<FeedbackResponse>(listView, lastCell) {
-                private final TwoLineListItem content = new TwoLineListItem();
-                private final JFXButton likeButton = new JFXButton();
-                private final JFXButton unlikeButton = new JFXButton();
-                private final HBox container;
-
-                {
-                    container = new HBox(8);
-                    container.setPickOnBounds(false);
-                    container.setAlignment(Pos.CENTER_LEFT);
-                    HBox.setHgrow(content, Priority.ALWAYS);
-                    content.setMouseTransparent(false);
-                    setSelectable();
-
-                    likeButton.getStyleClass().add("toggle-icon4");
-                    likeButton.setGraphic(FXUtils.limitingSize(SVG.thumbUpOutline(Theme.blackFillBinding(), 24, 24), 24, 24));
-
-                    unlikeButton.getStyleClass().add("toggle-icon4");
-                    unlikeButton.setGraphic(FXUtils.limitingSize(SVG.thumbDownOutline(Theme.blackFillBinding(), 24, 24), 24, 24));
-
-                    container.getChildren().setAll(content, likeButton, unlikeButton);
-
-                    StackPane.setMargin(container, new Insets(10, 16, 10, 16));
-                    getContainer().getChildren().setAll(container);
-                }
-
-                @Override
-                protected void updateControl(FeedbackResponse feedback, boolean empty) {
-                    if (empty) return;
-                    content.setTitle(feedback.getTitle());
-                    content.setSubtitle(feedback.getAuthor());
-                    content.getTags().setAll(
-                            "#" + feedback.getId(),
-                            i18n("feedback.state." + feedback.getState().name().toLowerCase(Locale.US)),
-                            i18n("feedback.type." + feedback.getType().name().toLowerCase(Locale.US)));
-                    content.setOnMouseClicked(e -> {
-                        getFeedback(feedback.getId())
-                                .thenAcceptAsync(Schedulers.javafx(), f -> {
-                                    Controllers.dialog(new ViewFeedbackDialog(f));
-                                })
-                                .start();
-                    });
-                }
-            });
-
-            getChildren().add(spinnerPane);
-        }
-    }
-
-    @Override
-    public void onPageShown() {
-        search("", "time", false);
-    }
-
-    private void search(String keyword, String order, boolean showAll) {
-        HMCLAccounts.HMCLAccount account = HMCLAccounts.getAccount();
-        Task.supplyAsync(() -> {
-            Map<String, String> query = mapOf(
-                    pair("keyword", keyword),
-                    pair("order", order)
-            );
-            if (showAll) {
-                query.put("showAll", "1");
-            }
-            HttpRequest req = HttpRequest.GET(NetworkUtils.withQuery("https://hmcl.huangyuhui.net/api/feedback", query));
-            if (account != null) {
-                req.authorization("Bearer", HMCLAccounts.getAccount().getIdToken())
-                        .header("Authorization-Provider", HMCLAccounts.getAccount().getProvider());
-            }
-            return req.<List<FeedbackResponse>>getJson(new TypeToken<List<FeedbackResponse>>(){}.getType());
-        }).whenComplete(Schedulers.javafx(), (result, exception) -> {
-            spinnerPane.hideSpinner();
-            if (exception != null) {
-                if (exception instanceof ResponseCodeException) {
-                    int responseCode = ((ResponseCodeException) exception).getResponseCode();
-                    if (responseCode == HttpURLConnection.HTTP_UNAUTHORIZED) {
-                        spinnerPane.setFailedReason(i18n("feedback.failed.permission"));
-                        return;
-                    } else if (responseCode == 429) {
-                        spinnerPane.setFailedReason(i18n("feedback.failed.too_frequently"));
-                        return;
-                    }
-                }
-                spinnerPane.setFailedReason(i18n("feedback.failed"));
-            } else {
-                feedbacks.setAll(result);
-            }
-        }).start();
-    }
-
-    private Task<FeedbackResponse> getFeedback(int id) {
-        return Task.supplyAsync(() -> HttpRequest.GET("https://hmcl.huangyuhui.net/api/feedback/" + id).getJson(FeedbackResponse.class));
-    }
-
-    private void log() {
-        if (HMCLAccounts.getAccount() == null) {
-            // login
-            Controllers.dialog(new LoginDialog());
-        } else {
-            // logout
-            HMCLAccounts.setAccount(null);
-        }
-    }
-
-    private void addFeedback() {
-        if (HMCLAccounts.getAccount() == null) {
-            Controllers.dialog(i18n("feedback.add.login"));
-            return;
-        }
-
-        Controllers.dialog(new AddFeedbackDialog());
-    }
-
-    private static final class LoginDialog extends JFXDialogLayout {
-        private final SpinnerPane spinnerPane = new SpinnerPane();
-        private final Label errorLabel = new Label();
-        private final BooleanProperty logging = new SimpleBooleanProperty();
-
-        public LoginDialog() {
-            setHeading(new Label(i18n("feedback.login")));
-
-            VBox vbox = new VBox(8);
-            setBody(vbox);
-            HintPane hintPane = new HintPane(MessageDialogPane.MessageType.INFO);
-            hintPane.textProperty().bind(BindingMapping.of(logging).map(logging -> i18n("account.hmcl.hint")));
-            hintPane.setOnMouseClicked(e -> {
-                if (logging.get() && OAuthServer.lastlyOpenedURL != null) {
-                    FXUtils.copyText(OAuthServer.lastlyOpenedURL);
-                }
-            });
-            vbox.getChildren().setAll(hintPane);
-
-            JFXButton loginButton = new JFXButton();
-            spinnerPane.setContent(loginButton);
-            loginButton.setText(i18n("account.login"));
-            loginButton.setOnAction(e -> login());
-
-            JFXButton cancelButton = new JFXButton();
-            cancelButton.setText(i18n("button.cancel"));
-            cancelButton.setOnAction(e -> fireEvent(new DialogCloseEvent()));
-            onEscPressed(this, cancelButton::fire);
-
-            setActions(errorLabel, spinnerPane, cancelButton);
-        }
-
-        private void login() {
-            spinnerPane.showSpinner();
-            errorLabel.setText("");
-            logging.set(true);
-
-            HMCLAccounts.login().whenComplete(Schedulers.javafx(), (result, exception) -> {
-                logging.set(false);
-                if (exception != null) {
-                    if (exception instanceof IOException) {
-                        errorLabel.setText(i18n("account.failed.connect_authentication_server"));
-                    } else if (exception instanceof JsonParseException) {
-                        errorLabel.setText(i18n("account.failed.server_response_malformed"));
-                    } else {
-                        errorLabel.setText(Accounts.localizeErrorMessage(exception));
-                    }
-                } else {
-                    fireEvent(new DialogCloseEvent());
-                }
-            }).start();
-        }
-    }
-
-    private static class AddFeedbackDialog extends DialogPane {
-
-        JFXTextField titleField = new JFXTextField();
-        JFXComboBox<FeedbackType> comboBox = new JFXComboBox<>();
-        JFXTextArea contentArea = new JFXTextArea();
-
-        public AddFeedbackDialog() {
-            setTitle(i18n("feedback.add"));
-
-            GridPane body = new GridPane();
-            body.setVgap(8);
-            body.setHgap(8);
-
-            HintPane searchHintPane = new HintPane(MessageDialogPane.MessageType.WARNING);
-            GridPane.setColumnSpan(searchHintPane, 2);
-            searchHintPane.setText(i18n("feedback.add.hint.search_before_add"));
-            body.addRow(0, searchHintPane);
-
-            HintPane titleHintPane = new HintPane(MessageDialogPane.MessageType.INFO);
-            GridPane.setColumnSpan(titleHintPane, 2);
-            titleHintPane.setText(i18n("feedback.add.hint.title"));
-            body.addRow(1, titleHintPane);
-
-            titleField.setValidators(new RequiredValidator());
-            body.addRow(2, new Label(i18n("feedback.title")), titleField);
-
-            comboBox.setMaxWidth(-1);
-            comboBox.getItems().setAll(FeedbackType.values());
-            comboBox.getSelectionModel().select(0);
-            comboBox.setConverter(stringConverter(e -> i18n("feedback.type." + e.name().toLowerCase())));
-            body.addRow(3, new Label(i18n("feedback.type")), comboBox);
-
-            Label contentLabel = new Label(i18n("feedback.content"));
-            GridPane.setColumnSpan(contentLabel, 2);
-            body.addRow(4, contentLabel);
-
-            contentArea.setValidators(new RequiredValidator());
-            contentArea.setPromptText(i18n("feedback.add.hint.content"));
-            GridPane.setColumnSpan(contentArea, 2);
-            body.addRow(5, contentArea);
-
-            validProperty().bind(Bindings.createBooleanBinding(() -> {
-                return titleField.validate() && contentArea.validate();
-            }, titleField.textProperty(), contentArea.textProperty()));
-
-            setBody(body);
-        }
-
-        @Override
-        protected void onAccept() {
-            setLoading();
-
-            addFeedback(titleField.getText(), comboBox.getValue(), contentArea.getText())
-                    .whenComplete(Schedulers.javafx(), exception -> {
-                        if (exception != null) {
-                            onFailure(exception.getLocalizedMessage());
-                        } else {
-                            onSuccess();
-                        }
-                    })
-                    .start();
-        }
-
-        private Task<?> addFeedback(String title, FeedbackType feedbackType, String content) {
-            return Task.runAsync(() -> {
-                HttpRequest.POST("https://hmcl.huangyuhui.net/api/feedback")
-                        .json(mapOf(
-                                pair("title", title),
-                                pair("content", content),
-                                pair("type", feedbackType.name().toLowerCase(Locale.ROOT)),
-                                pair("launcher_version", Metadata.VERSION)
-                        ))
-                        .authorization("Bearer", HMCLAccounts.getAccount().getIdToken())
-                        .header("Authorization-Provider", HMCLAccounts.getAccount().getProvider())
-                        .getString();
-            });
-        }
-    }
-
-    private static class ViewFeedbackDialog extends JFXDialogLayout {
-
-        public ViewFeedbackDialog(FeedbackResponse feedback) {
-            BorderPane heading = new BorderPane();
-            TwoLineListItem left = new TwoLineListItem();
-            heading.setLeft(left);
-            left.setTitle(feedback.getTitle());
-            left.setSubtitle(feedback.getAuthor());
-            left.getTags().add("#" + feedback.getId());
-            left.getTags().add(i18n("feedback.state." + feedback.getState().name().toLowerCase(Locale.US)));
-            left.getTags().add(feedback.getLauncherVersion());
-            left.getTags().add(i18n("feedback.type." + feedback.getType().name().toLowerCase()));
-
-            setHeading(heading);
-
-            Label content = new Label(feedback.getContent());
-            content.setWrapText(true);
-
-            TwoLineListItem response = new TwoLineListItem();
-            response.getStyleClass().setAll("two-line-item-second-large");
-            response.setTitle(i18n("feedback.response"));
-            response.setSubtitle(StringUtils.isBlank(feedback.getReason())
-                    ? i18n("feedback.response.empty")
-                    : feedback.getReason());
-
-            VBox body = new VBox(content, response);
-            body.setSpacing(8);
-            setBody(body);
-
-            JFXButton okButton = new JFXButton();
-            okButton.setText(i18n("button.ok"));
-            okButton.setOnAction(e -> fireEvent(new DialogCloseEvent()));
-
-            setActions(okButton);
-        }
-    }
-
-    private static class FeedbackResponse {
-        private final int id;
-        private final String title;
-        private final String content;
-        private final String author;
-        @SerializedName("launcher_version")
-        private final String launcherVersion;
-        private final FeedbackType type;
-        private final FeedbackState state;
-        private final String reason;
-
-        public FeedbackResponse(int id, String title, String content, String author, String launcherVersion, FeedbackType type, FeedbackState state, String reason) {
-            this.id = id;
-            this.title = title;
-            this.content = content;
-            this.author = author;
-            this.launcherVersion = launcherVersion;
-            this.type = type;
-            this.state = state;
-            this.reason = reason;
-        }
-
-        public int getId() {
-            return id;
-        }
-
-        public String getTitle() {
-            return title;
-        }
-
-        public String getContent() {
-            return content;
-        }
-
-        public String getAuthor() {
-            return author;
-        }
-
-        public String getLauncherVersion() {
-            return launcherVersion;
-        }
-
-        public FeedbackType getType() {
-            return type;
-        }
-
-        public FeedbackState getState() {
-            return state;
-        }
-
-        public String getReason() {
-            return reason;
-        }
-    }
-
-    private enum FeedbackType {
-        FEATURE,
-        BUG
-    }
-
-    private enum FeedbackState {
-        OPEN,
-        REJECTED,
-        ACCEPTED
-    }
-}
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/LauncherSettingsPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/LauncherSettingsPage.java
index d6c11595..d7586282 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/LauncherSettingsPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/LauncherSettingsPage.java
@@ -44,8 +44,6 @@ public class LauncherSettingsPage extends DecoratorAnimatedPage implements Decor
     private final TabHeader.Tab<DownloadSettingsPage> downloadTab = new TabHeader.Tab<>("downloadSettingsPage");
     private final TabHeader.Tab<HelpPage> helpTab = new TabHeader.Tab<>("helpPage");
     private final TabHeader.Tab<AboutPage> aboutTab = new TabHeader.Tab<>("aboutPage");
-    private final TabHeader.Tab<FeedbackPage> feedbackTab = new TabHeader.Tab<>("feedbackPage");
-    private final TabHeader.Tab<SponsorPage> sponsorTab = new TabHeader.Tab<>("sponsorPage");
     private final TransitionPane transitionPane = new TransitionPane();
 
     public LauncherSettingsPage() {
@@ -54,10 +52,8 @@ public class LauncherSettingsPage extends DecoratorAnimatedPage implements Decor
         personalizationTab.setNodeSupplier(PersonalizationPage::new);
         downloadTab.setNodeSupplier(DownloadSettingsPage::new);
         helpTab.setNodeSupplier(HelpPage::new);
-        feedbackTab.setNodeSupplier(FeedbackPage::new);
-        sponsorTab.setNodeSupplier(SponsorPage::new);
         aboutTab.setNodeSupplier(AboutPage::new);
-        tab = new TabHeader(gameTab, settingsTab, personalizationTab, downloadTab, helpTab, feedbackTab, sponsorTab, aboutTab);
+        tab = new TabHeader(gameTab, settingsTab, personalizationTab, downloadTab, helpTab, aboutTab);
 
         tab.select(gameTab);
         gameTab.initializeIfNeeded();
@@ -100,18 +96,6 @@ public class LauncherSettingsPage extends DecoratorAnimatedPage implements Decor
                         helpItem.activeProperty().bind(tab.getSelectionModel().selectedItemProperty().isEqualTo(helpTab));
                         helpItem.setOnAction(e -> tab.select(helpTab));
                     })
-                    .addNavigationDrawerItem(feedbackItem -> {
-                        feedbackItem.setTitle(i18n("feedback"));
-                        feedbackItem.setLeftGraphic(wrap(SVG::messageAlertOutline));
-                        feedbackItem.activeProperty().bind(tab.getSelectionModel().selectedItemProperty().isEqualTo(feedbackTab));
-                        feedbackItem.setOnAction(e -> tab.select(feedbackTab));
-                    })
-                    .addNavigationDrawerItem(sponsorItem -> {
-                        sponsorItem.setTitle(i18n("sponsor"));
-                        sponsorItem.setLeftGraphic(wrap(SVG::handHearOutline));
-                        sponsorItem.activeProperty().bind(tab.getSelectionModel().selectedItemProperty().isEqualTo(sponsorTab));
-                        sponsorItem.setOnAction(e -> tab.select(sponsorTab));
-                    })
                     .addNavigationDrawerItem(aboutItem -> {
                         aboutItem.setTitle(i18n("about"));
                         aboutItem.setLeftGraphic(wrap(SVG::informationOutline));
@@ -140,10 +124,6 @@ public class LauncherSettingsPage extends DecoratorAnimatedPage implements Decor
         tab.select(gameTab);
     }
 
-    public void showFeedback() {
-        tab.select(feedbackTab);
-    }
-
     @Override
     public ReadOnlyObjectProperty<State> stateProperty() {
         return state.getReadOnlyProperty();
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/MainPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/MainPage.java
index 111fb82d..add45e23 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/MainPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/MainPage.java
@@ -52,9 +52,6 @@ import org.jackhuang.hmcl.ui.construct.TwoLineListItem;
 import org.jackhuang.hmcl.ui.decorator.DecoratorPage;
 import org.jackhuang.hmcl.ui.versions.GameItem;
 import org.jackhuang.hmcl.ui.versions.Versions;
-import org.jackhuang.hmcl.upgrade.RemoteVersion;
-import org.jackhuang.hmcl.upgrade.UpdateChecker;
-import org.jackhuang.hmcl.upgrade.UpdateHandler;
 import org.jackhuang.hmcl.util.javafx.BindingMapping;
 import org.jackhuang.hmcl.util.javafx.MappedObservableList;
 import org.jackhuang.hmcl.util.platform.JavaVersion;
@@ -76,14 +73,11 @@ public final class MainPage extends StackPane implements DecoratorPage {
     private final JFXPopup popup = new JFXPopup(menu);
 
     private final StringProperty currentGame = new SimpleStringProperty(this, "currentGame");
-    private final BooleanProperty showUpdate = new SimpleBooleanProperty(this, "showUpdate");
-    private final ObjectProperty<RemoteVersion> latestVersion = new SimpleObjectProperty<>(this, "latestVersion");
     private final ObservableList<Version> versions = FXCollections.observableArrayList();
     private final ObservableList<Node> versionNodes;
     private Profile profile;
 
     private final VBox announcementPane;
-    private final StackPane updatePane;
     private final JFXButton menuButton;
 
     {
@@ -113,44 +107,6 @@ public final class MainPage extends StackPane implements DecoratorPage {
 
         announcementPane = new VBox(16);
 
-        updatePane = new StackPane();
-        updatePane.setVisible(false);
-        updatePane.getStyleClass().add("bubble");
-        FXUtils.setLimitWidth(updatePane, 230);
-        FXUtils.setLimitHeight(updatePane, 55);
-        StackPane.setAlignment(updatePane, Pos.TOP_RIGHT);
-        updatePane.setOnMouseClicked(e -> onUpgrade());
-        FXUtils.onChange(showUpdateProperty(), this::showUpdate);
-
-        {
-            HBox hBox = new HBox();
-            hBox.setSpacing(12);
-            hBox.setAlignment(Pos.CENTER_LEFT);
-            StackPane.setAlignment(hBox, Pos.CENTER_LEFT);
-            StackPane.setMargin(hBox, new Insets(9, 12, 9, 16));
-            {
-                Label lblIcon = new Label();
-                lblIcon.setGraphic(SVG.update(Theme.whiteFillBinding(), 20, 20));
-
-                TwoLineListItem prompt = new TwoLineListItem();
-                prompt.setSubtitle(i18n("update.bubble.subtitle"));
-                prompt.setPickOnBounds(false);
-                prompt.titleProperty().bind(BindingMapping.of(latestVersionProperty()).map(latestVersion ->
-                        latestVersion == null ? "" : i18n("update.bubble.title", latestVersion.getVersion())));
-
-                hBox.getChildren().setAll(lblIcon, prompt);
-            }
-
-            JFXButton closeUpdateButton = new JFXButton();
-            closeUpdateButton.setGraphic(SVG.close(Theme.whiteFillBinding(), 10, 10));
-            StackPane.setAlignment(closeUpdateButton, Pos.TOP_RIGHT);
-            closeUpdateButton.getStyleClass().add("toggle-icon-tiny");
-            StackPane.setMargin(closeUpdateButton, new Insets(5));
-            closeUpdateButton.setOnMouseClicked(e -> closeUpdateBubble());
-
-            updatePane.getChildren().setAll(hBox, closeUpdateButton);
-        }
-
         StackPane launchPane = new StackPane();
         launchPane.getStyleClass().add("launch-pane");
         launchPane.setMaxWidth(230);
@@ -220,7 +176,7 @@ public final class MainPage extends StackPane implements DecoratorPage {
             launchPane.getChildren().setAll(launchButton, separator, menuButton);
         }
 
-        getChildren().setAll(announcementPane, updatePane, launchPane);
+        getChildren().setAll(announcementPane, launchPane);
 
         menu.setMaxHeight(365);
         menu.setMaxWidth(545);
@@ -234,40 +190,6 @@ public final class MainPage extends StackPane implements DecoratorPage {
         Bindings.bindContent(menu.getContent(), versionNodes);
     }
 
-    public MainPage() {
-        if (Metadata.isNightly()) {
-            announcementPane.getChildren().add(new AnnouncementCard(i18n("update.channel.nightly.title"), i18n("update.channel.nightly.hint")));
-        } else if (Metadata.isDev()) {
-            announcementPane.getChildren().add(new AnnouncementCard(i18n("update.channel.dev.title"), i18n("update.channel.dev.hint")));
-        }
-    }
-
-    private void showUpdate(boolean show) {
-        doAnimation(show);
-
-        if (show && getLatestVersion() != null && !Objects.equals(config().getPromptedVersion(), getLatestVersion().getVersion())) {
-            Controllers.dialog("", i18n("update.bubble.title", getLatestVersion().getVersion()), MessageDialogPane.MessageType.INFO, () -> {
-                config().setPromptedVersion(getLatestVersion().getVersion());
-                onUpgrade();
-            });
-        }
-    }
-
-    private void doAnimation(boolean show) {
-        Duration duration = Duration.millis(320);
-        Timeline nowAnimation = new Timeline();
-        nowAnimation.getKeyFrames().addAll(
-                new KeyFrame(Duration.ZERO,
-                        new KeyValue(updatePane.translateXProperty(), show ? 260 : 0, SINE)),
-                new KeyFrame(duration,
-                        new KeyValue(updatePane.translateXProperty(), show ? 0 : 260, SINE)));
-        if (show) nowAnimation.getKeyFrames().add(
-                new KeyFrame(Duration.ZERO, e -> updatePane.setVisible(true)));
-        else nowAnimation.getKeyFrames().add(
-                new KeyFrame(duration, e -> updatePane.setVisible(false)));
-        nowAnimation.play();
-    }
-
     private void launch() {
         Versions.launch(Profiles.getSelectedProfile());
     }
@@ -276,19 +198,6 @@ public final class MainPage extends StackPane implements DecoratorPage {
         popup.show(menuButton, JFXPopup.PopupVPosition.BOTTOM, JFXPopup.PopupHPosition.RIGHT, 0, -menuButton.getHeight());
     }
 
-    private void onUpgrade() {
-        RemoteVersion target = UpdateChecker.getLatestVersion();
-        if (target == null) {
-            return;
-        }
-        UpdateHandler.updateFrom(target);
-    }
-
-    private void closeUpdateBubble() {
-        showUpdate.unbind();
-        showUpdate.set(false);
-    }
-
     @Override
     public ReadOnlyObjectWrapper<State> stateProperty() {
         return state;
@@ -306,30 +215,6 @@ public final class MainPage extends StackPane implements DecoratorPage {
         this.currentGame.set(currentGame);
     }
 
-    public boolean isShowUpdate() {
-        return showUpdate.get();
-    }
-
-    public BooleanProperty showUpdateProperty() {
-        return showUpdate;
-    }
-
-    public void setShowUpdate(boolean showUpdate) {
-        this.showUpdate.set(showUpdate);
-    }
-
-    public RemoteVersion getLatestVersion() {
-        return latestVersion.get();
-    }
-
-    public ObjectProperty<RemoteVersion> latestVersionProperty() {
-        return latestVersion;
-    }
-
-    public void setLatestVersion(RemoteVersion latestVersion) {
-        this.latestVersion.set(latestVersion);
-    }
-
     public void initVersions(Profile profile, List<Version> versions) {
         FXUtils.checkFxUserThread();
         this.profile = profile;
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/RootPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/RootPage.java
index 94c282c0..1a4885d0 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/RootPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/RootPage.java
@@ -41,7 +41,6 @@ import org.jackhuang.hmcl.ui.decorator.DecoratorPage;
 import org.jackhuang.hmcl.ui.download.ModpackInstallWizardProvider;
 import org.jackhuang.hmcl.ui.versions.GameAdvancedListItem;
 import org.jackhuang.hmcl.ui.versions.Versions;
-import org.jackhuang.hmcl.upgrade.UpdateChecker;
 import org.jackhuang.hmcl.util.TaskCancellationAction;
 import org.jackhuang.hmcl.util.io.CompressingUtils;
 import org.jackhuang.hmcl.util.versioning.VersionNumber;
@@ -92,8 +91,6 @@ public class RootPage extends DecoratorAnimatedPage implements DecoratorPage {
             });
 
             FXUtils.onChangeAndOperate(Profiles.selectedVersionProperty(), mainPage::setCurrentGame);
-            mainPage.showUpdateProperty().bind(UpdateChecker.outdatedProperty());
-            mainPage.latestVersionProperty().bind(UpdateChecker.latestVersionProperty());
 
             Profiles.registerVersionsListener(profile -> {
                 HMCLGameRepository repository = profile.getRepository();
@@ -150,19 +147,6 @@ public class RootPage extends DecoratorAnimatedPage implements DecoratorPage {
             downloadItem.setTitle(i18n("download"));
             downloadItem.setOnAction(e -> Controllers.navigate(Controllers.getDownloadPage()));
 
-            // fifth item in left sidebar
-            AdvancedListItem multiplayerItem = new AdvancedListItem();
-            multiplayerItem.setLeftGraphic(wrap(SVG::lan));
-            multiplayerItem.setActionButtonVisible(false);
-            multiplayerItem.setTitle(i18n("multiplayer"));
-            JFXHyperlink link = new JFXHyperlink(i18n("multiplayer.hint.details"));
-            link.setOnAction(e -> FXUtils.openLink("https://hmcl.huangyuhui.net/api/redirect/multiplayer-migrate"));
-            multiplayerItem.setOnAction(e -> Controllers.dialog(
-                    new MessageDialogPane.Builder(i18n("multiplayer.hint"), null, MessageDialogPane.MessageType.INFO)
-                            .addAction(link)
-                            .ok(null)
-                            .build()));
-
             // sixth item in left sidebar
             AdvancedListItem launcherSettingsItem = new AdvancedListItem();
             launcherSettingsItem.setLeftGraphic(wrap(SVG::gearOutline));
@@ -179,7 +163,6 @@ public class RootPage extends DecoratorAnimatedPage implements DecoratorPage {
                     .add(gameItem)
                     .add(downloadItem)
                     .startCategory(i18n("settings.launcher.general").toUpperCase())
-                    .add(multiplayerItem)
                     .add(launcherSettingsItem);
 
             // the root page, with the sidebar in left, navigator in center.
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/SettingsPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/SettingsPage.java
index b5347094..622b21e6 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/SettingsPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/SettingsPage.java
@@ -27,10 +27,6 @@ import org.jackhuang.hmcl.setting.Settings;
 import org.jackhuang.hmcl.ui.Controllers;
 import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.ui.construct.MessageDialogPane.MessageType;
-import org.jackhuang.hmcl.upgrade.RemoteVersion;
-import org.jackhuang.hmcl.upgrade.UpdateChannel;
-import org.jackhuang.hmcl.upgrade.UpdateChecker;
-import org.jackhuang.hmcl.upgrade.UpdateHandler;
 import org.jackhuang.hmcl.util.Logging;
 import org.jackhuang.hmcl.util.i18n.Locales;
 import org.jackhuang.hmcl.util.io.FileUtils;
@@ -68,57 +64,6 @@ public final class SettingsPage extends SettingsView {
                 Bindings.createObjectBinding(() -> Optional.ofNullable(Settings.instance().getCommonDirectory())
                                 .orElse(i18n("launcher.cache_directory.disabled")),
                         config().commonDirectoryProperty(), config().commonDirTypeProperty()));
-
-        // ==== Update ====
-        FXUtils.installFastTooltip(btnUpdate, i18n("update.tooltip"));
-        updateListener = any -> {
-            btnUpdate.setVisible(UpdateChecker.isOutdated());
-
-            if (UpdateChecker.isOutdated()) {
-                lblUpdateSub.setText(i18n("update.newest_version", UpdateChecker.getLatestVersion().getVersion()));
-                lblUpdateSub.getStyleClass().setAll("update-label");
-
-                lblUpdate.setText(i18n("update.found"));
-                lblUpdate.getStyleClass().setAll("update-label");
-            } else if (UpdateChecker.isCheckingUpdate()) {
-                lblUpdateSub.setText(i18n("update.checking"));
-                lblUpdateSub.getStyleClass().setAll("subtitle-label");
-
-                lblUpdate.setText(i18n("update"));
-                lblUpdate.getStyleClass().setAll();
-            } else {
-                lblUpdateSub.setText(i18n("update.latest"));
-                lblUpdateSub.getStyleClass().setAll("subtitle-label");
-
-                lblUpdate.setText(i18n("update"));
-                lblUpdate.getStyleClass().setAll();
-            }
-        };
-        UpdateChecker.latestVersionProperty().addListener(new WeakInvalidationListener(updateListener));
-        UpdateChecker.outdatedProperty().addListener(new WeakInvalidationListener(updateListener));
-        UpdateChecker.checkingUpdateProperty().addListener(new WeakInvalidationListener(updateListener));
-        updateListener.invalidated(null);
-
-        ToggleGroup updateChannelGroup = new ToggleGroup();
-        chkUpdateDev.setToggleGroup(updateChannelGroup);
-        chkUpdateDev.setUserData(UpdateChannel.DEVELOPMENT);
-        chkUpdateStable.setToggleGroup(updateChannelGroup);
-        chkUpdateStable.setUserData(UpdateChannel.STABLE);
-        ObjectProperty<UpdateChannel> updateChannel = selectedItemPropertyFor(updateChannelGroup, UpdateChannel.class);
-        updateChannel.set(UpdateChannel.getChannel());
-        updateChannel.addListener((a, b, newValue) -> {
-            UpdateChecker.requestCheckUpdate(newValue);
-        });
-        // ====
-    }
-
-    @Override
-    protected void onUpdate() {
-        RemoteVersion target = UpdateChecker.getLatestVersion();
-        if (target == null) {
-            return;
-        }
-        UpdateHandler.updateFrom(target);
     }
 
     @Override
@@ -142,11 +87,6 @@ public final class SettingsPage extends SettingsView {
         });
     }
 
-    @Override
-    protected void onSponsor() {
-        FXUtils.openLink("https://hmcl.huangyuhui.net/api/redirect/sponsor");
-    }
-
     @Override
     protected void clearCacheDirectory() {
         FileUtils.cleanDirectoryQuietly(new File(Settings.instance().getCommonDirectory(), "cache"));
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/SettingsView.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/SettingsView.java
index af9a3477..44b6dfed 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/SettingsView.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/SettingsView.java
@@ -49,11 +49,6 @@ public abstract class SettingsView extends StackPane {
     protected final JFXComboBox<SupportedLocale> cboLanguage;
     protected final MultiFileItem<EnumCommonDirectory> fileCommonLocation;
     protected final ComponentSublist fileCommonLocationSublist;
-    protected final Label lblUpdate;
-    protected final Label lblUpdateSub;
-    protected final JFXRadioButton chkUpdateStable;
-    protected final JFXRadioButton chkUpdateDev;
-    protected final JFXButton btnUpdate;
     protected final ScrollPane scroll;
 
     public SettingsView() {
@@ -69,11 +64,6 @@ public abstract class SettingsView extends StackPane {
                 ComponentList settingsPane = new ComponentList();
                 {
                     {
-                        StackPane sponsorPane = new StackPane();
-                        sponsorPane.setCursor(Cursor.HAND);
-                        sponsorPane.setOnMouseClicked(e -> onSponsor());
-                        sponsorPane.setPadding(new Insets(8, 0, 8, 0));
-
                         GridPane gridPane = new GridPane();
 
                         ColumnConstraints col = new ColumnConstraints();
@@ -96,51 +86,7 @@ public abstract class SettingsView extends StackPane {
                             GridPane.setColumnIndex(label, 0);
                             gridPane.getChildren().add(label);
                         }
-
-                        sponsorPane.getChildren().setAll(gridPane);
-                        settingsPane.getContent().add(sponsorPane);
-                    }
-                }
-
-                {
-                    ComponentSublist updatePane = new ComponentSublist();
-                    updatePane.setTitle(i18n("update"));
-                    updatePane.setHasSubtitle(true);
-                    {
-                        VBox headerLeft = new VBox();
-
-                        lblUpdate = new Label(i18n("update"));
-                        lblUpdateSub = new Label();
-                        lblUpdateSub.getStyleClass().add("subtitle-label");
-
-                        headerLeft.getChildren().setAll(lblUpdate, lblUpdateSub);
-                        updatePane.setHeaderLeft(headerLeft);
-                    }
-
-                    {
-                        btnUpdate = new JFXButton();
-                        btnUpdate.setOnMouseClicked(e -> onUpdate());
-                        btnUpdate.getStyleClass().add("toggle-icon4");
-                        btnUpdate.setGraphic(SVG.update(Theme.blackFillBinding(), 20, 20));
-
-                        updatePane.setHeaderRight(btnUpdate);
                     }
-
-                    {
-                        VBox content = new VBox();
-                        content.setSpacing(8);
-
-                        chkUpdateStable = new JFXRadioButton(i18n("update.channel.stable"));
-                        chkUpdateDev = new JFXRadioButton(i18n("update.channel.dev"));
-
-                        TextFlow noteWrapper = new TextFlow(new Text(i18n("update.note")));
-                        VBox.setMargin(noteWrapper, new Insets(10, 0, 0, 0));
-
-                        content.getChildren().setAll(chkUpdateStable, chkUpdateDev, noteWrapper);
-
-                        updatePane.getContent().add(content);
-                    }
-                    settingsPane.getContent().add(updatePane);
                 }
 
                 {
@@ -204,11 +150,7 @@ public abstract class SettingsView extends StackPane {
         }
     }
 
-    protected abstract void onUpdate();
-
     protected abstract void onExportLogs();
 
-    protected abstract void onSponsor();
-
     protected abstract void clearCacheDirectory();
 }
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/SponsorPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/SponsorPage.java
deleted file mode 100644
index ff685971..00000000
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/SponsorPage.java
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * Hello Minecraft! Launcher
- * Copyright (C) 2021  huangyuhui <huanghongxun2008@126.com> and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-package org.jackhuang.hmcl.ui.main;
-
-import com.google.gson.annotations.SerializedName;
-import com.google.gson.reflect.TypeToken;
-import com.jfoenix.controls.JFXListCell;
-import com.jfoenix.controls.JFXListView;
-import javafx.geometry.Insets;
-import javafx.geometry.VPos;
-import javafx.scene.Cursor;
-import javafx.scene.control.Label;
-import javafx.scene.layout.*;
-import javafx.scene.text.TextAlignment;
-import org.apache.commons.lang3.mutable.MutableObject;
-import org.jackhuang.hmcl.task.Schedulers;
-import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.ui.FXUtils;
-import org.jackhuang.hmcl.util.io.HttpRequest;
-
-import java.math.BigDecimal;
-import java.util.Date;
-import java.util.List;
-
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-public class SponsorPage extends StackPane {
-    private final JFXListView<Sponsor> listView;
-
-    public SponsorPage() {
-        VBox content = new VBox();
-        content.setPadding(new Insets(10));
-        content.setSpacing(10);
-        content.setFillWidth(true);
-
-        {
-            StackPane sponsorPane = new StackPane();
-            sponsorPane.getStyleClass().add("card");
-            sponsorPane.setCursor(Cursor.HAND);
-            sponsorPane.setOnMouseClicked(e -> onSponsor());
-
-            GridPane gridPane = new GridPane();
-
-            ColumnConstraints col = new ColumnConstraints();
-            col.setHgrow(Priority.SOMETIMES);
-            col.setMaxWidth(Double.POSITIVE_INFINITY);
-
-            gridPane.getColumnConstraints().setAll(col);
-
-            RowConstraints row = new RowConstraints();
-            row.setMinHeight(Double.NEGATIVE_INFINITY);
-            row.setValignment(VPos.TOP);
-            row.setVgrow(Priority.SOMETIMES);
-            gridPane.getRowConstraints().setAll(row);
-
-            {
-                Label label = new Label(i18n("sponsor.hmcl"));
-                label.setWrapText(true);
-                label.setTextAlignment(TextAlignment.JUSTIFY);
-                GridPane.setRowIndex(label, 0);
-                GridPane.setColumnIndex(label, 0);
-                gridPane.getChildren().add(label);
-            }
-
-            sponsorPane.getChildren().setAll(gridPane);
-            content.getChildren().add(sponsorPane);
-        }
-
-        {
-            StackPane pane = new StackPane();
-            pane.getStyleClass().add("card");
-            listView = new JFXListView<>();
-            MutableObject<Object> lastCell = new MutableObject<>();
-            listView.setCellFactory((listView) -> new JFXListCell<Sponsor>() {
-                @Override
-                public void updateItem(Sponsor item, boolean empty) {
-                    super.updateItem(item, empty);
-
-                    // https://mail.openjdk.org/pipermail/openjfx-dev/2022-July/034764.html
-                    if (this == lastCell.getValue() && !isVisible())
-                        return;
-                    lastCell.setValue(this);
-
-                    if (!empty) {
-                        setText(item.getName());
-                        setGraphic(null);
-                    }
-                }
-            });
-            VBox.setVgrow(pane, Priority.ALWAYS);
-            pane.getChildren().setAll(listView);
-            content.getChildren().add(pane);
-        }
-
-        loadSponsorList();
-
-        getChildren().setAll(content);
-    }
-
-    private void onSponsor() {
-        FXUtils.openLink("https://hmcl.huangyuhui.net/api/redirect/sponsor");
-    }
-
-    private void loadSponsorList() {
-        Task.<List<Sponsor>>supplyAsync(() -> HttpRequest.GET("https://hmcl.huangyuhui.net/api/sponsor").getJson(new TypeToken<List<Sponsor>>() {
-        }.getType())).thenAcceptAsync(Schedulers.javafx(), sponsors -> {
-            listView.getItems().setAll(sponsors);
-        }).start();
-    }
-
-    private static class Sponsor {
-        @SerializedName("name")
-        private final String name;
-
-        @SerializedName("create_time")
-        private final Date createTime;
-
-        @SerializedName("money")
-        private final BigDecimal money;
-
-        @SerializedName("contact")
-        private final String contact;
-
-        @SerializedName("afdian_id")
-        private final String afdianId;
-
-        public Sponsor() {
-            this("", new Date(), BigDecimal.ZERO, "", "");
-        }
-
-        public Sponsor(String name, Date createTime, BigDecimal money, String contact, String afdianId) {
-            this.name = name;
-            this.createTime = createTime;
-            this.money = money;
-            this.contact = contact;
-            this.afdianId = afdianId;
-        }
-
-        public String getName() {
-            return name;
-        }
-
-        public Date getCreateTime() {
-            return createTime;
-        }
-
-        public BigDecimal getMoney() {
-            return money;
-        }
-
-        public String getContact() {
-            return contact;
-        }
-
-        public String getAfdianId() {
-            return afdianId;
-        }
-    }
-}
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/ExecutableHeaderHelper.java b/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/ExecutableHeaderHelper.java
deleted file mode 100644
index 66a0f0ee..00000000
--- a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/ExecutableHeaderHelper.java
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- * Hello Minecraft! Launcher
- * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-package org.jackhuang.hmcl.upgrade;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.ByteBuffer;
-import java.nio.channels.FileChannel;
-import java.nio.channels.FileChannel.MapMode;
-import java.nio.file.Path;
-import java.util.Map;
-import java.util.Optional;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipFile;
-
-import org.jackhuang.hmcl.util.io.IOUtils;
-
-import static java.nio.file.StandardOpenOption.*;
-import static org.jackhuang.hmcl.util.Lang.mapOf;
-import static org.jackhuang.hmcl.util.Pair.pair;
-
-/**
- * Helper class for adding/removing executable header from HMCL file.
- *
- * @author yushijinhun
- */
-final class ExecutableHeaderHelper {
-    private ExecutableHeaderHelper() {}
-
-    private static Map<String, String> suffix2header = mapOf(
-            pair("exe", "assets/HMCLauncher.exe"),
-            pair("sh", "assets/HMCLauncher.sh")
-    );
-
-    private static Optional<String> getSuffix(Path file) {
-        String filename = file.getFileName().toString();
-        int idxDot = filename.lastIndexOf('.');
-        if (idxDot < 0) {
-            return Optional.empty();
-        } else {
-            return Optional.of(filename.substring(idxDot + 1));
-        }
-    }
-
-    private static Optional<byte[]> readHeader(ZipFile zip, String suffix) throws IOException {
-        String location = suffix2header.get(suffix);
-        if (location != null) {
-            ZipEntry entry = zip.getEntry(location);
-            if (entry != null && !entry.isDirectory()) {
-                try (InputStream in = zip.getInputStream(entry)) {
-                    return Optional.of(IOUtils.readFullyAsByteArray(in));
-                }
-            }
-        }
-        return Optional.empty();
-    }
-
-    private static int detectHeaderLength(ZipFile zip, FileChannel channel) throws IOException {
-        ByteBuffer buf = channel.map(MapMode.READ_ONLY, 0, channel.size());
-        suffixLoop: for (String suffix : suffix2header.keySet()) {
-            Optional<byte[]> header = readHeader(zip, suffix);
-            if (header.isPresent()) {
-                buf.rewind();
-                for (byte b : header.get()) {
-                    if (!buf.hasRemaining() || b != buf.get()) {
-                        continue suffixLoop;
-                    }
-                }
-                return header.get().length;
-            }
-        }
-        return 0;
-    }
-
-    /**
-     * Copies the executable and removes its header.
-     */
-    public static void copyWithoutHeader(Path from, Path to) throws IOException {
-        try (
-                FileChannel in = FileChannel.open(from, READ);
-                FileChannel out = FileChannel.open(to, CREATE, WRITE, TRUNCATE_EXISTING);
-                ZipFile zip = new ZipFile(from.toFile())
-        ) {
-            in.transferTo(detectHeaderLength(zip, in), Long.MAX_VALUE, out);
-        }
-    }
-
-    /**
-     * Copies the executable and appends the header according to the suffix.
-     */
-    public static void copyWithHeader(Path from, Path to) throws IOException {
-        try (
-                FileChannel in = FileChannel.open(from, READ);
-                FileChannel out = FileChannel.open(to, CREATE, WRITE, TRUNCATE_EXISTING);
-                ZipFile zip = new ZipFile(from.toFile())
-        ) {
-            Optional<String> suffix = getSuffix(to);
-            if (suffix.isPresent()) {
-                Optional<byte[]> header = readHeader(zip, suffix.get());
-                if (header.isPresent()) {
-                    out.write(ByteBuffer.wrap(header.get()));
-                }
-            }
-
-            in.transferTo(detectHeaderLength(zip, in), Long.MAX_VALUE, out);
-        }
-    }
-}
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/HMCLDownloadTask.java b/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/HMCLDownloadTask.java
deleted file mode 100644
index 8b6fdc06..00000000
--- a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/HMCLDownloadTask.java
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Hello Minecraft! Launcher
- * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-package org.jackhuang.hmcl.upgrade;
-
-import org.jackhuang.hmcl.task.FileDownloadTask;
-import org.jackhuang.hmcl.util.Pack200Utils;
-import org.jackhuang.hmcl.util.io.NetworkUtils;
-import org.tukaani.xz.XZInputStream;
-
-import java.io.ByteArrayInputStream;
-import java.io.InputStream;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.util.jar.JarOutputStream;
-
-class HMCLDownloadTask extends FileDownloadTask {
-
-    private RemoteVersion.Type archiveFormat;
-
-    public HMCLDownloadTask(RemoteVersion version, Path target) {
-        super(NetworkUtils.toURL(version.getUrl()), target.toFile(), version.getIntegrityCheck());
-        archiveFormat = version.getType();
-    }
-
-    @Override
-    public void execute() throws Exception {
-        super.execute();
-
-        try {
-            Path target = getFile().toPath();
-
-            switch (archiveFormat) {
-                case JAR:
-                    break;
-
-                case PACK_XZ:
-                    byte[] raw = Files.readAllBytes(target);
-                    try (InputStream in = new XZInputStream(new ByteArrayInputStream(raw));
-                            JarOutputStream out = new JarOutputStream(Files.newOutputStream(target))) {
-                        Pack200Utils.unpack(in, out);
-                    }
-                    break;
-
-                default:
-                    throw new IllegalArgumentException("Unknown format: " + archiveFormat);
-            }
-        } catch (Throwable e) {
-            getFile().delete();
-            throw e;
-        }
-    }
-
-}
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/IntegrityChecker.java b/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/IntegrityChecker.java
deleted file mode 100644
index 8c387047..00000000
--- a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/IntegrityChecker.java
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Hello Minecraft! Launcher
- * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-package org.jackhuang.hmcl.upgrade;
-
-import org.jackhuang.hmcl.util.DigestUtils;
-import org.jackhuang.hmcl.util.io.IOUtils;
-import org.jackhuang.hmcl.util.io.JarUtils;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.file.Path;
-import java.security.*;
-import java.security.spec.X509EncodedKeySpec;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.TreeMap;
-import java.util.logging.Level;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipFile;
-
-import static java.nio.charset.StandardCharsets.UTF_8;
-import static org.jackhuang.hmcl.util.Logging.LOG;
-
-/**
- * A class that checks the integrity of HMCL.
- *
- * @author yushijinhun
- */
-public final class IntegrityChecker {
-    private IntegrityChecker() {}
-
-    private static final String SIGNATURE_FILE = "META-INF/hmcl_signature";
-    private static final String PUBLIC_KEY_FILE = "assets/hmcl_signature_publickey.der";
-
-    private static PublicKey getPublicKey() throws IOException {
-        try (InputStream in = IntegrityChecker.class.getResourceAsStream("/" + PUBLIC_KEY_FILE)) {
-            if (in == null) {
-                throw new IOException("Public key not found");
-            }
-            return KeyFactory.getInstance("RSA").generatePublic(new X509EncodedKeySpec(IOUtils.readFullyAsByteArray(in)));
-        } catch (GeneralSecurityException e) {
-            throw new IOException("Failed to load public key", e);
-        }
-    }
-
-    private static boolean verifyJar(Path jarPath) throws IOException {
-        PublicKey publickey = getPublicKey();
-        MessageDigest md = DigestUtils.getDigest("SHA-512");
-
-        byte[] signature = null;
-        Map<String, byte[]> fileFingerprints = new TreeMap<>();
-        try (ZipFile zip = new ZipFile(jarPath.toFile())) {
-            for (ZipEntry entry : zip.stream().toArray(ZipEntry[]::new)) {
-                String filename = entry.getName();
-                try (InputStream in = zip.getInputStream(entry)) {
-                    if (in == null) {
-                        throw new IOException("entry is null");
-                    }
-
-                    if (SIGNATURE_FILE.equals(filename)) {
-                        signature = IOUtils.readFullyAsByteArray(in);
-                    } else {
-                        md.reset();
-                        fileFingerprints.put(filename, DigestUtils.digest(md, in));
-                    }
-                }
-            }
-        }
-
-        if (signature == null) {
-            throw new IOException("Signature is missing");
-        }
-
-        try {
-            Signature verifier = Signature.getInstance("SHA512withRSA");
-            verifier.initVerify(publickey);
-            for (Entry<String, byte[]> entry : fileFingerprints.entrySet()) {
-                md.reset();
-                verifier.update(md.digest(entry.getKey().getBytes(UTF_8)));
-                verifier.update(entry.getValue());
-            }
-            return verifier.verify(signature);
-        } catch (GeneralSecurityException e) {
-            throw new IOException("Failed to verify signature", e);
-        }
-    }
-
-    static void requireVerifiedJar(Path jar) throws IOException {
-        if (!verifyJar(jar)) {
-            throw new IOException("Invalid signature: " + jar);
-        }
-    }
-
-    private static Boolean selfVerified = null;
-
-    /**
-     * Checks whether the current application is verified.
-     * This method is blocking.
-     */
-    public static synchronized boolean isSelfVerified() {
-        if (selfVerified != null) {
-            return selfVerified;
-        }
-        try {
-            verifySelf();
-            LOG.info("Successfully verified current JAR");
-            selfVerified = true;
-        } catch (IOException e) {
-            LOG.log(Level.WARNING, "Failed to verify myself, is the JAR corrupt?", e);
-            selfVerified = false;
-        }
-        return selfVerified;
-    }
-
-    private static void verifySelf() throws IOException {
-        Path self = JarUtils.thisJar().orElseThrow(() -> new IOException("Failed to find current HMCL location"));
-        requireVerifiedJar(self);
-    }
-}
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/RemoteVersion.java b/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/RemoteVersion.java
deleted file mode 100644
index c3ac2caa..00000000
--- a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/RemoteVersion.java
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Hello Minecraft! Launcher
- * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-package org.jackhuang.hmcl.upgrade;
-
-import com.google.gson.JsonElement;
-import com.google.gson.JsonObject;
-import com.google.gson.JsonParseException;
-import org.jackhuang.hmcl.task.FileDownloadTask.IntegrityCheck;
-import org.jackhuang.hmcl.util.Pack200Utils;
-import org.jackhuang.hmcl.util.gson.JsonUtils;
-import org.jackhuang.hmcl.util.io.NetworkUtils;
-
-import java.io.IOException;
-import java.util.Optional;
-
-public class RemoteVersion {
-
-    public static RemoteVersion fetch(UpdateChannel channel, String url) throws IOException {
-        try {
-            JsonObject response = JsonUtils.fromNonNullJson(NetworkUtils.doGet(NetworkUtils.toURL(url)), JsonObject.class);
-            String version = Optional.ofNullable(response.get("version")).map(JsonElement::getAsString).orElseThrow(() -> new IOException("version is missing"));
-            String jarUrl = Optional.ofNullable(response.get("jar")).map(JsonElement::getAsString).orElse(null);
-            String jarHash = Optional.ofNullable(response.get("jarsha1")).map(JsonElement::getAsString).orElse(null);
-            String packXZUrl = Optional.ofNullable(response.get("packxz")).map(JsonElement::getAsString).orElse(null);
-            String packXZHash = Optional.ofNullable(response.get("packxzsha1")).map(JsonElement::getAsString).orElse(null);
-            if (Pack200Utils.isSupported() && packXZUrl != null && packXZHash != null) {
-                return new RemoteVersion(channel, version, packXZUrl, Type.PACK_XZ, new IntegrityCheck("SHA-1", packXZHash));
-            } else if (jarUrl != null && jarHash != null) {
-                return new RemoteVersion(channel, version, jarUrl, Type.JAR, new IntegrityCheck("SHA-1", jarHash));
-            } else {
-                throw new IOException("No download url is available");
-            }
-        } catch (JsonParseException e) {
-            throw new IOException("Malformed response", e);
-        }
-    }
-
-    private final UpdateChannel channel;
-    private final String version;
-    private final String url;
-    private final Type type;
-    private final IntegrityCheck integrityCheck;
-
-    public RemoteVersion(UpdateChannel channel, String version, String url, Type type, IntegrityCheck integrityCheck) {
-        this.channel = channel;
-        this.version = version;
-        this.url = url;
-        this.type = type;
-        this.integrityCheck = integrityCheck;
-    }
-
-    public UpdateChannel getChannel() {
-        return channel;
-    }
-
-    public String getVersion() {
-        return version;
-    }
-
-    public String getUrl() {
-        return url;
-    }
-
-    public Type getType() {
-        return type;
-    }
-
-    public IntegrityCheck getIntegrityCheck() {
-        return integrityCheck;
-    }
-
-    @Override
-    public String toString() {
-        return "[" + version + " from " + url + "]";
-    }
-
-    public enum Type {
-        PACK_XZ,
-        JAR
-    }
-}
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/UpdateChannel.java b/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/UpdateChannel.java
deleted file mode 100644
index 998a3da7..00000000
--- a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/UpdateChannel.java
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Hello Minecraft! Launcher
- * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-package org.jackhuang.hmcl.upgrade;
-
-import org.jackhuang.hmcl.Metadata;
-
-public enum UpdateChannel {
-    STABLE("stable"),
-    DEVELOPMENT("dev"),
-    NIGHTLY("nightly");
-
-    public final String channelName;
-
-    UpdateChannel(String channelName) {
-        this.channelName = channelName;
-    }
-
-    public static UpdateChannel getChannel() {
-        if (Metadata.isDev()) {
-            return DEVELOPMENT;
-        } else if (Metadata.isNightly()) {
-            return NIGHTLY;
-        } else {
-            return STABLE;
-        }
-    }
-}
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/UpdateChecker.java b/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/UpdateChecker.java
deleted file mode 100644
index cc7ce8f2..00000000
--- a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/UpdateChecker.java
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Hello Minecraft! Launcher
- * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-package org.jackhuang.hmcl.upgrade;
-
-import javafx.application.Platform;
-import javafx.beans.binding.Bindings;
-import javafx.beans.binding.BooleanBinding;
-import javafx.beans.property.*;
-import javafx.beans.value.ObservableBooleanValue;
-import org.jackhuang.hmcl.Metadata;
-import org.jackhuang.hmcl.util.io.NetworkUtils;
-
-import java.io.IOException;
-import java.util.logging.Level;
-
-import static org.jackhuang.hmcl.util.Lang.mapOf;
-import static org.jackhuang.hmcl.util.Lang.thread;
-import static org.jackhuang.hmcl.util.Logging.LOG;
-import static org.jackhuang.hmcl.util.Pair.pair;
-import static org.jackhuang.hmcl.util.versioning.VersionNumber.asVersion;
-
-public final class UpdateChecker {
-    private UpdateChecker() {}
-
-    private static ObjectProperty<RemoteVersion> latestVersion = new SimpleObjectProperty<>();
-    private static BooleanBinding outdated = Bindings.createBooleanBinding(
-            () -> {
-                RemoteVersion latest = latestVersion.get();
-                if (latest == null || isDevelopmentVersion(Metadata.VERSION)) {
-                    return false;
-                } else {
-                    // We can update from development version to stable version,
-                    // which can be downgrading.
-                    return asVersion(latest.getVersion()).compareTo(asVersion(Metadata.VERSION)) != 0;
-                }
-            },
-            latestVersion);
-    private static ReadOnlyBooleanWrapper checkingUpdate = new ReadOnlyBooleanWrapper(false);
-
-    public static void init() {
-        requestCheckUpdate(UpdateChannel.getChannel());
-    }
-
-    public static RemoteVersion getLatestVersion() {
-        return latestVersion.get();
-    }
-
-    public static ReadOnlyObjectProperty<RemoteVersion> latestVersionProperty() {
-        return latestVersion;
-    }
-
-    public static boolean isOutdated() {
-        return outdated.get();
-    }
-
-    public static ObservableBooleanValue outdatedProperty() {
-        return outdated;
-    }
-
-    public static boolean isCheckingUpdate() {
-        return checkingUpdate.get();
-    }
-
-    public static ReadOnlyBooleanProperty checkingUpdateProperty() {
-        return checkingUpdate.getReadOnlyProperty();
-    }
-
-    private static RemoteVersion checkUpdate(UpdateChannel channel) throws IOException {
-        if (!IntegrityChecker.isSelfVerified() && !"true".equals(System.getProperty("hmcl.self_integrity_check.disable"))) {
-            throw new IOException("Self verification failed");
-        }
-
-        String url = NetworkUtils.withQuery(Metadata.UPDATE_URL, mapOf(
-                pair("version", Metadata.VERSION),
-                pair("channel", channel.channelName)));
-
-        return RemoteVersion.fetch(channel, url);
-    }
-
-    private static boolean isDevelopmentVersion(String version) {
-        return version.contains("@") || // eg. @develop@
-                version.contains("SNAPSHOT"); // eg. 3.5.SNAPSHOT
-    }
-
-    public static void requestCheckUpdate(UpdateChannel channel) {
-        Platform.runLater(() -> {
-            if (isCheckingUpdate())
-                return;
-            checkingUpdate.set(true);
-
-            thread(() -> {
-                RemoteVersion result = null;
-                try {
-                    result = checkUpdate(channel);
-                    LOG.info("Latest version (" + channel + ") is " + result);
-                } catch (IOException e) {
-                    LOG.log(Level.WARNING, "Failed to check for update", e);
-                }
-
-                RemoteVersion finalResult = result;
-                Platform.runLater(() -> {
-                    checkingUpdate.set(false);
-                    if (finalResult != null) {
-                        latestVersion.set(finalResult);
-                    }
-                });
-            }, "Update Checker", true);
-        });
-    }
-}
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/UpdateHandler.java b/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/UpdateHandler.java
deleted file mode 100644
index 4cd06ef8..00000000
--- a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/UpdateHandler.java
+++ /dev/null
@@ -1,257 +0,0 @@
-/*
- * Hello Minecraft! Launcher
- * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-package org.jackhuang.hmcl.upgrade;
-
-import com.google.gson.Gson;
-import com.google.gson.JsonParseException;
-import javafx.application.Platform;
-
-import org.jackhuang.hmcl.Main;
-import org.jackhuang.hmcl.Metadata;
-import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.task.TaskExecutor;
-import org.jackhuang.hmcl.ui.Controllers;
-import org.jackhuang.hmcl.ui.UpgradeDialog;
-import org.jackhuang.hmcl.ui.construct.MessageDialogPane.MessageType;
-import org.jackhuang.hmcl.util.StringUtils;
-import org.jackhuang.hmcl.ui.SwingUtils;
-import org.jackhuang.hmcl.util.TaskCancellationAction;
-import org.jackhuang.hmcl.util.io.FileUtils;
-import org.jackhuang.hmcl.util.io.JarUtils;
-import org.jackhuang.hmcl.util.platform.JavaVersion;
-
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.util.*;
-import java.util.concurrent.CancellationException;
-import java.util.logging.Level;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-import static org.jackhuang.hmcl.ui.FXUtils.checkFxUserThread;
-import static org.jackhuang.hmcl.util.Lang.thread;
-import static org.jackhuang.hmcl.util.Logging.LOG;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-public final class UpdateHandler {
-    private UpdateHandler() {}
-
-    /**
-     * @return whether to exit
-     */
-    public static boolean processArguments(String[] args) {
-        breakForceUpdateFeature();
-
-        if (isNestedApplication()) {
-            // updated from old versions
-            try {
-                performMigration();
-            } catch (IOException e) {
-                LOG.log(Level.WARNING, "Failed to perform migration", e);
-                SwingUtils.showErrorDialog(i18n("fatal.apply_update_failure", Metadata.PUBLISH_URL) + "\n" + StringUtils.getStackTrace(e));
-            }
-            return true;
-        }
-
-        if (args.length == 2 && args[0].equals("--apply-to")) {
-            try {
-                applyUpdate(Paths.get(args[1]));
-            } catch (IOException e) {
-                LOG.log(Level.WARNING, "Failed to apply update", e);
-                SwingUtils.showErrorDialog(i18n("fatal.apply_update_failure", Metadata.PUBLISH_URL) + "\n" + StringUtils.getStackTrace(e));
-            }
-            return true;
-        }
-
-        if (isFirstLaunchAfterUpgrade()) {
-            SwingUtils.showInfoDialog(i18n("fatal.migration_requires_manual_reboot"));
-            return true;
-        }
-
-        return false;
-    }
-
-    public static void updateFrom(RemoteVersion version) {
-        checkFxUserThread();
-
-        Controllers.dialog(new UpgradeDialog(version, () -> {
-            Path downloaded;
-            try {
-                downloaded = Files.createTempFile("hmcl-update-", ".jar");
-            } catch (IOException e) {
-                LOG.log(Level.WARNING, "Failed to create temp file", e);
-                return;
-            }
-
-            Task<?> task = new HMCLDownloadTask(version, downloaded);
-
-            TaskExecutor executor = task.executor(false);
-            Controllers.taskDialog(executor, i18n("message.downloading"), TaskCancellationAction.NORMAL);
-            executor.start();
-            thread(() -> {
-                boolean success = executor.test();
-
-                if (success) {
-                    try {
-                        if (!IntegrityChecker.isSelfVerified()) {
-                            throw new IOException("Current JAR is not verified");
-                        }
-
-                        requestUpdate(downloaded, getCurrentLocation());
-                        System.exit(0);
-                    } catch (IOException e) {
-                        LOG.log(Level.WARNING, "Failed to update to " + version, e);
-                        Platform.runLater(() -> Controllers.dialog(StringUtils.getStackTrace(e), i18n("update.failed"), MessageType.ERROR));
-                    }
-
-                } else {
-                    Exception e = executor.getException();
-                    LOG.log(Level.WARNING, "Failed to update to " + version, e);
-                    if (e instanceof CancellationException) {
-                        Platform.runLater(() -> Controllers.showToast(i18n("message.cancelled")));
-                    } else {
-                        Platform.runLater(() -> Controllers.dialog(e.toString(), i18n("update.failed"), MessageType.ERROR));
-                    }
-                }
-            });
-        }));
-    }
-
-    private static void applyUpdate(Path target) throws IOException {
-        LOG.info("Applying update to " + target);
-
-        Path self = getCurrentLocation();
-        IntegrityChecker.requireVerifiedJar(self);
-        ExecutableHeaderHelper.copyWithHeader(self, target);
-
-        Optional<Path> newFilename = tryRename(target, Metadata.VERSION);
-        if (newFilename.isPresent()) {
-            LOG.info("Move " + target + " to " + newFilename.get());
-            try {
-                Files.move(target, newFilename.get());
-                target = newFilename.get();
-            } catch (IOException e) {
-                LOG.log(Level.WARNING, "Failed to move target", e);
-            }
-        }
-
-        startJava(target);
-    }
-
-    private static void requestUpdate(Path updateTo, Path self) throws IOException {
-        IntegrityChecker.requireVerifiedJar(updateTo);
-        startJava(updateTo, "--apply-to", self.toString());
-    }
-
-    private static void startJava(Path jar, String... appArgs) throws IOException {
-        List<String> commandline = new ArrayList<>();
-        commandline.add(JavaVersion.fromCurrentEnvironment().getBinary().toString());
-        commandline.add("-jar");
-        commandline.add(jar.toAbsolutePath().toString());
-        commandline.addAll(Arrays.asList(appArgs));
-        LOG.info("Starting process: " + commandline);
-        new ProcessBuilder(commandline)
-                .directory(Paths.get("").toAbsolutePath().toFile())
-                .inheritIO()
-                .start();
-    }
-
-    private static Optional<Path> tryRename(Path path, String newVersion) {
-        String filename = path.getFileName().toString();
-        Matcher matcher = Pattern.compile("^(?<prefix>[hH][mM][cC][lL][.-])(?<version>\\d+(?:\\.\\d+)*)(?<suffix>\\.[^.]+)$").matcher(filename);
-        if (matcher.find()) {
-            String newFilename = matcher.group("prefix") + newVersion + matcher.group("suffix");
-            if (!newFilename.equals(filename)) {
-                return Optional.of(path.resolveSibling(newFilename));
-            }
-        }
-        return Optional.empty();
-    }
-
-    private static Path getCurrentLocation() throws IOException {
-        return JarUtils.thisJar().orElseThrow(() -> new IOException("Failed to find current HMCL location"));
-    }
-
-    // ==== support for old versions ===
-    private static void performMigration() throws IOException {
-        LOG.info("Migrating from old versions");
-
-        Path location = getParentApplicationLocation()
-                .orElseThrow(() -> new IOException("Failed to get parent application location"));
-
-        requestUpdate(getCurrentLocation(), location);
-    }
-
-    /**
-     * This method must be called from the main thread.
-     */
-    private static boolean isNestedApplication() {
-        StackTraceElement[] stacktrace = Thread.currentThread().getStackTrace();
-        for (int i = 0; i < stacktrace.length; i++) {
-            StackTraceElement element = stacktrace[i];
-            if (Main.class.getName().equals(element.getClassName()) && "main".equals(element.getMethodName())) {
-                // we've reached the main method
-                return i + 1 != stacktrace.length;
-            }
-        }
-        return false;
-    }
-
-    private static Optional<Path> getParentApplicationLocation() {
-        String command = System.getProperty("sun.java.command");
-        if (command != null) {
-            Path path = Paths.get(command);
-            if (Files.isRegularFile(path)) {
-                return Optional.of(path.toAbsolutePath());
-            }
-        }
-        return Optional.empty();
-    }
-
-    private static boolean isFirstLaunchAfterUpgrade() {
-        Optional<Path> currentPath = JarUtils.thisJar();
-        if (currentPath.isPresent()) {
-            Path updated = Metadata.HMCL_DIRECTORY.resolve("HMCL-" + Metadata.VERSION + ".jar");
-            if (currentPath.get().toAbsolutePath().equals(updated.toAbsolutePath())) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    private static void breakForceUpdateFeature() {
-        Path hmclVersionJson = Metadata.HMCL_DIRECTORY.resolve("hmclver.json");
-        if (Files.isRegularFile(hmclVersionJson)) {
-            try {
-                Map<?, ?> content = new Gson().fromJson(FileUtils.readText(hmclVersionJson), Map.class);
-                Object ver = content.get("ver");
-                if (ver instanceof String && ((String) ver).startsWith("3.")) {
-                    Files.delete(hmclVersionJson);
-                    LOG.info("Successfully broke the force update feature");
-                }
-            } catch (IOException e) {
-                LOG.log(Level.WARNING, "Failed to break the force update feature", e);
-            } catch (JsonParseException e) {
-                hmclVersionJson.toFile().delete();
-            }
-        }
-    }
-    // ====
-}
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/util/CrashReporter.java b/HMCL/src/main/java/org/jackhuang/hmcl/util/CrashReporter.java
index 252265be..53b93d43 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/util/CrashReporter.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/util/CrashReporter.java
@@ -23,8 +23,6 @@ import javafx.scene.control.Alert.AlertType;
 import org.jackhuang.hmcl.Metadata;
 import org.jackhuang.hmcl.countly.CrashReport;
 import org.jackhuang.hmcl.ui.CrashWindow;
-import org.jackhuang.hmcl.upgrade.IntegrityChecker;
-import org.jackhuang.hmcl.upgrade.UpdateChecker;
 import org.jackhuang.hmcl.util.io.NetworkUtils;
 
 import java.io.IOException;
@@ -106,9 +104,6 @@ public class CrashReporter implements Thread.UncaughtExceptionHandler {
                     if (showCrashWindow) {
                         new CrashWindow(text).show();
                     }
-                    if (!UpdateChecker.isOutdated() && IntegrityChecker.isSelfVerified()) {
-                        reportToServer(report);
-                    }
                 }
             });
         } catch (Throwable handlingException) {
-- 
2.38.1