🎉 Version 2.3.0 - Backup & Restore System

This release introduces a comprehensive backup and restore system with scheduled backups, automatic retention management, and complete data portability.

✨ New Features

🔐 Complete Backup & Restore System

• Encrypted Backups: AES-256-GCM encryption with PBKDF2 key derivation
• Complete Data Export: Database + secrets + metadata in a single encrypted file
• Password Protection: User-defined passwords for backup encryption (not stored anywhere)
• Portable Backups: Move backups between different servers and Docker installations
• Automatic Restart: Application automatically restarts after restore (production/Docker)

⏰ Scheduled Backups

• Configurable Intervals: Hourly, Daily, or Weekly backup schedules
• Automatic Execution: Background scheduler checks every 60 seconds for due backups
• Retention Management: Automatically keeps N most recent scheduled backups
• Separate Tracking: Manual vs scheduled backups tracked separately
• Persistent Settings: Backup schedule configuration stored in database

📦 Backup Management UI

• Dedicated Settings Tab: New Backup tab in Settings page
• Backup List: View, download, and manage all existing backups
• One-Click Operations: Create, restore, download, and delete backups
• Progress Indicators: Loading states and status messages for all operations
• Backup Metadata: View timestamp, size, type (manual/scheduled), and app version

🔧 System Management

• Manual Restart Endpoint: API endpoint for graceful application restart
• Backup Password Salvage: Preserves backup passwords when recovering from malformed secrets
• Defensive Error Handling: Multiple layers of error handling for file operations

🛠️ Technical Improvements

Backend

• New BackupScheduler service for automatic scheduled backups
• New BackupSettings database model for schedule persistence
• Enhanced LifecycleService with exit code 42 for launcher-managed restarts
• Backup files stored in backups/manual/ and backups/scheduled/ directories
• Rate limiting on backup/restore/restart endpoints

Frontend

• React Query hooks with optimistic updates
• Zod schemas for backup settings validation
• Typed API client functions for all backup operations
• Themed components matching existing UI design

Security

• Double encryption: Service API keys encrypted in DB, then encrypted again in backup
• Password-based backup access with PBKDF2 key derivation
• Rate limiting protection on sensitive endpoints
• No backup passwords stored or logged

📚 Documentation

• BACKUP_RESTORE.md: Comprehensive 664-line guide covering:
  • Feature overview and usage instructions
  • Security considerations and best practices
  • Troubleshooting common issues
  • API usage examples
  • Migration workflows between servers

🔄 Database Changes

New BackupSettings model:
```prisma
model BackupSettings {
id Int @id @default(1)
enabled Boolean @default(false)
intervalType BackupIntervalType @default(DISABLED)
intervalValue Int @default(24)
retentionCount Int @default(7)
lastRunAt DateTime?
nextRunAt DateTime?
createdAt DateTime @default(now())
updatedAt DateTime @updatedat
}

enum BackupIntervalType {
DISABLED
HOURLY
DAILY
WEEKLY
}
```

🐛 Bug Fixes

• Fixed TypeScript production build errors in authentication hooks
• Moved 401 error handling to useEffect to comply with React rules
• Fixed backup password preservation when recovering from invalid JSON
• Removed redundant optional chaining in user display components
• Added explicit return types to prevent type inference issues

📋 API Endpoints

New endpoints added:

• `GET /api/backup` - List all backups
• `POST /api/backup/create` - Create manual backup
• `POST /api/backup/restore` - Restore from uploaded file
• `POST /api/backup/restore-from-file` - Restore from server-side backup
• `GET /api/backup/:id/download` - Download backup by ID
• `DELETE /api/backup/:id` - Delete backup
• `GET /api/backup/settings` - Get backup settings
• `PUT /api/backup/settings` - Update backup settings
• `POST /api/system/restart` - Manual restart endpoint

🔧 Breaking Changes

None. This is a purely additive release with full backward compatibility.

🐳 Docker Images

Published to:

• Docker Hub: `khak1s/arr-dashboard:2.3.0`, `khak1s/arr-dashboard:latest`
• GitHub Container Registry: `ghcr.io/kha-kis/arr-dashboard:2.3.0`, `ghcr.io/kha-kis/arr-dashboard:latest`

Both `linux/amd64` and `linux/arm64` platforms supported.

📥 Installation

Docker (Recommended)

```bash
docker pull khak1s/arr-dashboard:2.3.0
docker run -d
--name arr-dashboard
-p 3000:3000
-v /path/to/data:/app/data
khak1s/arr-dashboard:2.3.0
```

Unraid

Update the template to version 2.3.0 or use the Community Applications auto-update feature.

🙏 Contributors

• @Kha-kis
• AI-assisted development with Claude Code

Full Changelog: v2.2.0...v2.3.0