diff --git a/py/routes/api_routes.py b/py/routes/api_routes.py
index cd66783d..22cf2757 100644
--- a/py/routes/api_routes.py
+++ b/py/routes/api_routes.py
@@ -13,6 +13,7 @@ from operator import itemgetter
 from ..services.websocket_manager import ws_manager
 from ..services.settings_manager import settings
 import asyncio
+from .update_routes import UpdateRoutes
 
 logger = logging.getLogger(__name__)
 
@@ -43,6 +44,9 @@ class ApiRoutes:
         app.router.add_post('/loras/api/save-metadata', routes.save_metadata)
         app.router.add_get('/api/lora-preview-url', routes.get_lora_preview_url)  # Add new route
 
+        # Add update check routes
+        UpdateRoutes.setup_routes(app)
+
     async def delete_model(self, request: web.Request) -> web.Response:
         """Handle model deletion request"""
         try:
diff --git a/py/routes/update_routes.py b/py/routes/update_routes.py
new file mode 100644
index 00000000..41037aae
--- /dev/null
+++ b/py/routes/update_routes.py
@@ -0,0 +1,180 @@
+import os
+import aiohttp
+import logging
+import toml
+from aiohttp import web
+from typing import Dict, Any, List
+
+logger = logging.getLogger(__name__)
+
+class UpdateRoutes:
+    """Routes for handling plugin update checks"""
+    
+    @staticmethod
+    def setup_routes(app):
+        """Register update check routes"""
+        app.router.add_get('/loras/api/check-updates', UpdateRoutes.check_updates)
+    
+    @staticmethod
+    async def check_updates(request):
+        """
+        Check for plugin updates by comparing local version with GitHub
+        Returns update status and version information
+        """
+        try:
+            # Read local version from pyproject.toml
+            local_version = UpdateRoutes._get_local_version()
+            logger.info(f"Local version: {local_version}")
+            
+            # Fetch remote version from GitHub
+            remote_version, changelog = await UpdateRoutes._get_remote_version()
+            logger.info(f"Remote version: {remote_version}")
+            
+            # Compare versions
+            update_available = UpdateRoutes._compare_versions(
+                local_version.replace('v', ''), 
+                remote_version.replace('v', '')
+            )
+            
+            logger.info(f"Update available: {update_available}")
+            
+            return web.json_response({
+                'success': True,
+                'current_version': local_version,
+                'latest_version': remote_version,
+                'update_available': update_available,
+                'changelog': changelog
+            })
+            
+        except Exception as e:
+            logger.error(f"Failed to check for updates: {e}", exc_info=True)
+            return web.json_response({
+                'success': False,
+                'error': str(e)
+            })
+    
+    @staticmethod
+    def _get_local_version() -> str:
+        """Get local plugin version from pyproject.toml"""
+        try:
+            # Find the plugin's pyproject.toml file
+            current_dir = os.path.dirname(os.path.abspath(__file__))
+            plugin_root = os.path.dirname(os.path.dirname(current_dir))
+            pyproject_path = os.path.join(plugin_root, 'pyproject.toml')
+            
+            # Read and parse the toml file
+            if os.path.exists(pyproject_path):
+                with open(pyproject_path, 'r', encoding='utf-8') as f:
+                    project_data = toml.load(f)
+                    version = project_data.get('project', {}).get('version', '0.0.0')
+                    return f"v{version}"
+            else:
+                logger.warning(f"pyproject.toml not found at {pyproject_path}")
+                return "v0.0.0"
+        
+        except Exception as e:
+            logger.error(f"Failed to get local version: {e}", exc_info=True)
+            return "v0.0.0"
+    
+    @staticmethod
+    async def _get_remote_version() -> tuple[str, List[str]]:
+        """
+        Fetch remote version from GitHub
+        Returns:
+            tuple: (version string, changelog list)
+        """
+        repo_owner = "willmiao"
+        repo_name = "ComfyUI-Lora-Manager"
+        
+        # Use GitHub API to fetch the latest release
+        github_url = f"https://api.github.com/repos/{repo_owner}/{repo_name}/releases/latest"
+        
+        try:
+            async with aiohttp.ClientSession() as session:
+                async with session.get(github_url, headers={'Accept': 'application/vnd.github+json'}) as response:
+                    if response.status != 200:
+                        logger.warning(f"Failed to fetch GitHub release: {response.status}")
+                        return "v0.0.0", []
+                    
+                    data = await response.json()
+                    version = data.get('tag_name', '')
+                    if not version.startswith('v'):
+                        version = f"v{version}"
+                    
+                    # Extract changelog from release notes
+                    body = data.get('body', '')
+                    changelog = UpdateRoutes._parse_changelog(body)
+                    
+                    return version, changelog
+        
+        except Exception as e:
+            logger.error(f"Error fetching remote version: {e}", exc_info=True)
+            return "v0.0.0", []
+    
+    @staticmethod
+    def _parse_changelog(release_notes: str) -> List[str]:
+        """
+        Parse GitHub release notes to extract changelog items
+        
+        Args:
+            release_notes: GitHub release notes markdown text
+            
+        Returns:
+            List of changelog items
+        """
+        changelog = []
+        
+        # Simple parsing - extract bullet points
+        lines = release_notes.split('\n')
+        for line in lines:
+            line = line.strip()
+            # Look for bullet points or numbered items
+            if line.startswith('- ') or line.startswith('* '):
+                item = line[2:].strip()
+                if item:
+                    changelog.append(item)
+            # Match numbered items like "1. Item"
+            elif len(line) > 2 and line[0].isdigit() and line[1:].startswith('. '):
+                item = line[line.index('. ')+2:].strip()
+                if item:
+                    changelog.append(item)
+        
+        # If we couldn't parse specific items, use the whole text (limited)
+        if not changelog and release_notes:
+            # Limit to first 500 chars and add ellipsis
+            summary = release_notes.strip()[:500]
+            if len(release_notes) > 500:
+                summary += "..."
+            changelog.append(summary)
+            
+        return changelog
+    
+    @staticmethod
+    def _compare_versions(version1: str, version2: str) -> bool:
+        """
+        Compare two semantic version strings
+        Returns True if version2 is newer than version1
+        """
+        try:
+            # Split versions into components
+            v1_parts = [int(x) for x in version1.split('.')]
+            v2_parts = [int(x) for x in version2.split('.')]
+            
+            # Ensure both have 3 components (major.minor.patch)
+            while len(v1_parts) < 3:
+                v1_parts.append(0)
+            while len(v2_parts) < 3:
+                v2_parts.append(0)
+            
+            # Compare version components
+            for i in range(3):
+                if v2_parts[i] > v1_parts[i]:
+                    return True
+                elif v2_parts[i] < v1_parts[i]:
+                    return False
+            
+            # Versions are equal
+            return False
+        except Exception as e:
+            logger.error(f"Error comparing versions: {e}", exc_info=True)
+            return False
diff --git a/static/css/components/modal.css b/static/css/components/modal.css
index 4f318f37..979cf2cc 100644
--- a/static/css/components/modal.css
+++ b/static/css/components/modal.css
@@ -1224,14 +1224,14 @@ body.modal-open {
     transform: translateY(-2px);
 }
 
-.changelog-section, .update-instructions {
+.changelog-section {
     background: var(--bg-color);
     border: 1px solid var(--lora-border);
     border-radius: var(--border-radius-sm);
     padding: var(--space-2);
 }
 
-.changelog-section h3, .update-instructions h3 {
+.changelog-section h3 {
     margin-top: 0;
     margin-bottom: var(--space-2);
     color: var(--lora-accent);
@@ -1239,7 +1239,7 @@ body.modal-open {
 }
 
 .changelog-content {
-    max-height: 200px;
+    max-height: 300px; /* Increased height since we removed instructions */
     overflow-y: auto;
 }
 
@@ -1272,17 +1272,6 @@ body.modal-open {
     color: var(--text-color);
 }
 
-.code-block {
-    background: var(--lora-surface);
-    border: 1px solid var(--lora-border);
-    border-radius: var(--border-radius-xs);
-    padding: var(--space-1) var(--space-2);
-    margin: var(--space-1) 0;
-    font-family: monospace;
-    color: var(--text-color);
-    overflow-x: auto;
-}
-
 @media (max-width: 480px) {
     .update-info {
         flex-direction: column;
@@ -1353,10 +1342,4 @@ input:checked + .toggle-slider:before {
     color: var(--text-color);
 }
 
-.preference-note {
-    margin-top: 4px;
-    font-size: 0.8em;
-    color: var(--text-color);
-    opacity: 0.7;
-    margin-left: 52px;
-}
\ No newline at end of file
+/* ...existing code... */
\ No newline at end of file
diff --git a/static/js/main.js b/static/js/main.js
index 7c767553..de4189a8 100644
--- a/static/js/main.js
+++ b/static/js/main.js
@@ -1,6 +1,7 @@
 import { debounce } from './utils/debounce.js';
 import { LoadingManager } from './managers/LoadingManager.js';
 import { modalManager } from './managers/ModalManager.js';
+import { updateService } from './managers/UpdateService.js';
 import { state } from './state/index.js';
 import { showLoraModal, toggleShowcase, scrollToTop } from './components/LoraCard.js';
 import { loadMoreLoras, fetchCivitai, deleteModel, replacePreview, resetAndReload, refreshLoras } from './api/loraApi.js';
@@ -50,9 +51,10 @@ window.toggleShowcase = toggleShowcase;
 window.scrollToTop = scrollToTop;
 
 // Initialize everything when DOM is ready
-document.addEventListener('DOMContentLoaded', () => {
+document.addEventListener('DOMContentLoaded', async () => {
     state.loadingManager = new LoadingManager();
     modalManager.initialize();  // Initialize modalManager after DOM is loaded
+    updateService.initialize(); // Initialize updateService after modalManager
     window.downloadManager = new DownloadManager();  // Move this after modalManager initialization
     window.filterManager = new FilterManager(); // Initialize filter manager
     
diff --git a/static/js/managers/ModalManager.js b/static/js/managers/ModalManager.js
index 5f0077eb..a513ef98 100644
--- a/static/js/managers/ModalManager.js
+++ b/static/js/managers/ModalManager.js
@@ -2,7 +2,6 @@ export class ModalManager {
     constructor() {
         this.modals = new Map();
         this.scrollPosition = 0;
-        this.updateAvailable = false;
     }
 
     initialize() {
@@ -75,9 +74,8 @@ export class ModalManager {
         document.addEventListener('keydown', this.boundHandleEscape);
         this.initialized = true;
         
-        // Initialize corner controls and update modal
+        // Initialize corner controls
         this.initCornerControls();
-        this.initUpdateModal();
     }
 
     registerModal(id, config) {
@@ -159,79 +157,16 @@ export class ModalManager {
         }
     }
 
-    // Add method to initialize corner controls behavior
+    // Keep only the corner controls initialization
     initCornerControls() {
         const cornerControls = document.querySelector('.corner-controls');
         const cornerControlsToggle = document.querySelector('.corner-controls-toggle');
         
         if(cornerControls && cornerControlsToggle) {
-            // Check for updates (mock implementation)
-            this.checkForUpdates();
-            
-            // Apply the initial badge state based on localStorage
-            const showUpdates = localStorage.getItem('show_update_notifications');
-            if (showUpdates === 'false') {
-                this.updateBadgeVisibility(false);
-            }
-        }
-    }
-    
-    // Modified update checker
-    checkForUpdates() {
-        // First check if user has disabled update notifications
-        const showUpdates = localStorage.getItem('show_update_notifications');
-        
-        // For demo purposes, we'll simulate an update being available
-        setTimeout(() => {
-            // We have an update available (mock)
-            this.updateAvailable = true;
-            
-            // Only show badges if notifications are enabled
-            const shouldShow = showUpdates !== 'false';
-            this.updateBadgeVisibility(shouldShow);
-        }, 2000);
-    }
-
-    // Add method to initialize update modal
-    initUpdateModal() {
-        const updateModal = document.getElementById('updateModal');
-        if (!updateModal) return;
-
-        const checkbox = updateModal.querySelector('#updateNotifications');
-        if (!checkbox) return;
-        
-        // Set initial state from localStorage or default to true
-        const showUpdates = localStorage.getItem('show_update_notifications');
-        checkbox.checked = showUpdates === null || showUpdates === 'true';
-        
-        // Apply the initial badge visibility based on checkbox state
-        this.updateBadgeVisibility(checkbox.checked);
-        
-        // Add event listener for changes
-        checkbox.addEventListener('change', (e) => {
-            localStorage.setItem('show_update_notifications', e.target.checked);
-            
-            // Immediately update badge visibility based on the new setting
-            this.updateBadgeVisibility(e.target.checked);
-        });
-    }
-    
-    // Enhanced helper method to update badge visibility
-    updateBadgeVisibility(show) {
-        const updateToggle = document.querySelector('.update-toggle');
-        const updateBadge = document.querySelector('.update-toggle .update-badge');
-        const cornerBadge = document.querySelector('.corner-badge');
-        
-        if (updateToggle) {
-            updateToggle.title = show && this.updateAvailable ? "Update Available" : "Check Updates";
-        }
-        
-        if (updateBadge) {
-            updateBadge.classList.toggle('hidden', !(show && this.updateAvailable));
-        }
-        
-        if (cornerBadge) {
-            cornerBadge.classList.toggle('hidden', !(show && this.updateAvailable));
+            // Toggle corner controls visibility
+            cornerControlsToggle.addEventListener('click', () => {
+                cornerControls.classList.toggle('expanded');
+            });
         }
     }
 }
diff --git a/static/js/managers/UpdateService.js b/static/js/managers/UpdateService.js
new file mode 100644
index 00000000..7ced9257
--- /dev/null
+++ b/static/js/managers/UpdateService.js
@@ -0,0 +1,183 @@
+import { modalManager } from './ModalManager.js';
+
+export class UpdateService {
+    constructor() {
+        this.updateCheckInterval = 24 * 60 * 60 * 1000; // 24 hours
+        this.currentVersion = "v0.0.0";  // Initialize with default values
+        this.latestVersion = "v0.0.0";   // Initialize with default values
+        this.updateInfo = null;
+        this.updateAvailable = false;
+        this.updateNotificationsEnabled = localStorage.getItem('show_update_notifications') !== 'false';
+        this.lastCheckTime = parseInt(localStorage.getItem('last_update_check') || '0');
+    }
+
+    initialize() {
+        // Initialize update preferences from localStorage
+        const showUpdates = localStorage.getItem('show_update_notifications');
+        this.updateNotificationsEnabled = showUpdates === null || showUpdates === 'true';
+        
+        // Register event listener for update notification toggle
+        const updateCheckbox = document.getElementById('updateNotifications');
+        if (updateCheckbox) {
+            updateCheckbox.checked = this.updateNotificationsEnabled;
+            updateCheckbox.addEventListener('change', (e) => {
+                this.updateNotificationsEnabled = e.target.checked;
+                localStorage.setItem('show_update_notifications', e.target.checked);
+                this.updateBadgeVisibility();
+            });
+        }
+        
+        // Perform update check if needed
+        this.checkForUpdates();
+        
+        // Set up event listener for update button
+        const updateToggle = document.querySelector('.update-toggle');
+        if (updateToggle) {
+            updateToggle.addEventListener('click', () => this.showUpdateModal());
+        }
+
+        // Immediately update modal content with current values (even if from default)
+        this.updateModalContent();
+    }
+    
+    async checkForUpdates() {
+        // Check if we should perform an update check
+        const now = Date.now();
+        if (now - this.lastCheckTime < this.updateCheckInterval) {
+            // If we already have update info, just update the UI
+            if (this.updateAvailable) {
+                this.updateBadgeVisibility();
+            }
+            return;
+        }
+        
+        try {
+            // Call backend API to check for updates
+            const response = await fetch('/loras/api/check-updates');
+            const data = await response.json();
+            
+            if (data.success) {
+                this.currentVersion = data.current_version || "v0.0.0";
+                this.latestVersion = data.latest_version || "v0.0.0";
+                this.updateInfo = data;
+                
+                // Determine if update is available
+                this.updateAvailable = data.update_available;
+                
+                // Update last check time
+                this.lastCheckTime = now;
+                localStorage.setItem('last_update_check', now.toString());
+                
+                // Update UI
+                this.updateBadgeVisibility();
+                this.updateModalContent();
+
+                console.log("Update check complete:", {
+                    currentVersion: this.currentVersion,
+                    latestVersion: this.latestVersion,
+                    updateAvailable: this.updateAvailable
+                });
+            }
+        } catch (error) {
+            console.error('Failed to check for updates:', error);
+        }
+    }
+    
+    updateBadgeVisibility() {
+        const updateToggle = document.querySelector('.update-toggle');
+        const updateBadge = document.querySelector('.update-toggle .update-badge');
+        const cornerBadge = document.querySelector('.corner-badge');
+        
+        if (updateToggle) {
+            updateToggle.title = this.updateNotificationsEnabled && this.updateAvailable 
+                ? "Update Available" 
+                : "Check Updates";
+        }
+        
+        if (updateBadge) {
+            const shouldShow = this.updateNotificationsEnabled && this.updateAvailable;
+            updateBadge.classList.toggle('hidden', !shouldShow);
+        }
+        
+        if (cornerBadge) {
+            const shouldShow = this.updateNotificationsEnabled && this.updateAvailable;
+            cornerBadge.classList.toggle('hidden', !shouldShow);
+        }
+    }
+    
+    updateModalContent() {
+        const modal = document.getElementById('updateModal');
+        if (!modal) return;
+        
+        // Update title based on update availability
+        const headerTitle = modal.querySelector('.update-header h2');
+        if (headerTitle) {
+            headerTitle.textContent = this.updateAvailable ? "Update Available" : "Check for Updates";
+        }
+        
+        // Always update version information, even if updateInfo is null
+        const currentVersionEl = modal.querySelector('.current-version .version-number');
+        const newVersionEl = modal.querySelector('.new-version .version-number');
+        
+        if (currentVersionEl) currentVersionEl.textContent = this.currentVersion;
+        if (newVersionEl) newVersionEl.textContent = this.latestVersion;
+        
+        // Update changelog content if available
+        if (this.updateInfo && this.updateInfo.changelog) {
+            const changelogContent = modal.querySelector('.changelog-content');
+            if (changelogContent) {
+                changelogContent.innerHTML = ''; // Clear existing content
+                
+                // Create changelog item
+                const changelogItem = document.createElement('div');
+                changelogItem.className = 'changelog-item';
+                
+                const versionHeader = document.createElement('h4');
+                versionHeader.textContent = `Version ${this.latestVersion}`;
+                changelogItem.appendChild(versionHeader);
+                
+                // Create changelog list
+                const changelogList = document.createElement('ul');
+                
+                if (this.updateInfo.changelog && this.updateInfo.changelog.length > 0) {
+                    this.updateInfo.changelog.forEach(item => {
+                        const listItem = document.createElement('li');
+                        listItem.textContent = item;
+                        changelogList.appendChild(listItem);
+                    });
+                } else {
+                    // If no changelog items available
+                    const listItem = document.createElement('li');
+                    listItem.textContent = "No detailed changelog available. Check GitHub for more information.";
+                    changelogList.appendChild(listItem);
+                }
+                
+                changelogItem.appendChild(changelogList);
+                changelogContent.appendChild(changelogItem);
+            }
+        }
+        
+        // Update GitHub link to point to the specific release if available
+        const githubLink = modal.querySelector('.update-link');
+        if (githubLink && this.latestVersion) {
+            const versionTag = this.latestVersion.replace(/^v/, '');
+            githubLink.href = `https://github.com/willmiao/ComfyUI-Lora-Manager/releases/tag/v${versionTag}`;
+        }
+    }
+    
+    showUpdateModal() {
+        // Force a check for updates when showing the modal
+        this.manualCheckForUpdates().then(() => {
+            // Show the modal after update check completes
+            modalManager.showModal('updateModal');
+        });
+    }
+    
+    async manualCheckForUpdates() {
+        this.lastCheckTime = 0; // Reset last check time to force check
+        await this.checkForUpdates();
+    }
+}
+
+// Create and export singleton instance
+export const updateService = new UpdateService();
diff --git a/templates/components/modals.html b/templates/components/modals.html
index bef795b8..d176b9a7 100644
--- a/templates/components/modals.html
+++ b/templates/components/modals.html
@@ -223,18 +223,18 @@
         <button class="close" onclick="modalManager.closeModal('updateModal')">&times;</button>
         <div class="update-header">
             <i class="fas fa-bell update-icon"></i>
-            <h2>Update Available</h2>
+            <h2>Check for Updates</h2>
         </div>
         <div class="update-content">
             <div class="update-info">
                 <div class="version-info">
                     <div class="current-version">
                         <span class="label">Current Version:</span>
-                        <span class="version-number">v1.0.0</span>
+                        <span class="version-number">v0.0.0</span>
                     </div>
                     <div class="new-version">
                         <span class="label">New Version:</span>
-                        <span class="version-number">v1.1.0</span>
+                        <span class="version-number">v0.0.0</span>
                     </div>
                 </div>
                 <a href="https://github.com/willmiao/ComfyUI-Lora-Manager" target="_blank" class="update-link">
@@ -245,27 +245,14 @@
             <div class="changelog-section">
                 <h3>Changelog</h3>
                 <div class="changelog-content">
+                    <!-- Dynamic changelog content will be inserted here -->
                     <div class="changelog-item">
-                        <h4>Version 1.1.0</h4>
-                        <ul>
-                            <li>Added support for custom folder structures</li>
-                            <li>Improved search functionality</li>
-                            <li>Fixed bug with loading large libraries</li>
-                            <li>Added new sorting options</li>
-                        </ul>
+                        <h4>Checking for updates...</h4>
+                        <p>Please wait while we check for the latest version.</p>
                     </div>
                 </div>
             </div>
             
-            <div class="update-instructions">
-                <h3>How to Update</h3>
-                <p>To update LoRA Manager, run the following command in your ComfyUI directory:</p>
-                <div class="code-block">
-                    <code>git pull origin main</code>
-                </div>
-                <p>Or update through the ComfyUI Manager if you installed it that way.</p>
-            </div>
-            
             <div class="update-preferences">
                 <label class="toggle-switch">
                     <input type="checkbox" id="updateNotifications" checked>