From 8774b4d1b660868fd3e6614d4f8e36d459805be0 Mon Sep 17 00:00:00 2001
From: xiatianxuan <xiatianxuan@zohomail.com>
Date: Fri, 19 Jun 2026 19:39:33 +0800
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+## What's New
+
+### Major Features
+
+#### Multi-Destination Backup
+- Parallel backup to local + multiple remote targets simultaneously
+- Supports SFTP + WebDAV + S3 cloud storage in a single operation
+- Independent failure handling per destination
+
+#### S3 Cloud Storage
+- AWS S3 compatible storage support (AWS, MinIO, Alibaba Cloud OSS, etc.)
+- Upload/download/delete operations
+- Auto-create bucket if not exists
+
+#### Data Integrity
+- SHA256 checksum generation and verification
+- Reed-Solomon error correction codes (reedsolo)
+- Tamper detection with HMAC validation
+
+#### Task Queue System
+- JSON-persistent task queue management
+- Add, execute, cancel, delete tasks
+- Async background execution with status tracking
+
+#### Cross-Archive Search
+- Search for files across multiple backup archives
+- Pattern matching with wildcard support
+- Results grouped by archive
+
+#### Selective Restore
+- Restore specific files matching patterns
+- Keyword-based file extraction
+- Dry-run preview before actual restore
+
+#### Backup Rotation
+- Keep-count policy: retain latest N backups
+- Keep-days policy: retain backups within N days
+- Keep-daily policy: retain N daily backups
+
+#### Pre/Post Hooks
+- Execute custom commands before/after backup
+- Timeout control and error handling
+- Cross-platform command parsing
+
+#### Configuration Profile
+- Save/load/delete named profiles
+- Switch between different backup configurations
+- Import/export profiles as JSON
+
+#### Audit Logging
+- Record all backup/restore operations
+- Search by time range and event type
+- JSON-persistent audit trail
+
+### Performance & Reliability
+
+- **Chunked Backup**: 64KB block-level incremental backup
+- **File Deduplication**: SHA256-based dedup to avoid redundant uploads
+- **Parallel Compression**: Multi-threaded compression for large backups
+- **Bandwidth Limiter**: Token bucket rate limiting for remote uploads
+- **Retry Mechanism**: Exponential backoff for network operations
+- **Backup Lock**: Cross-platform process lock to prevent concurrent runs
+
+### New Commands (27 added)
+
+| Command | Description |
+|---------|-------------|
+| `edit` | Edit existing backup strategy |
+| `history` | View backup version history |
+| `info` | View backup file details |
+| `diff` | Compare source directory with backup |
+| `verify` | Verify backup file integrity |
+| `remote` | Remote file management (list/rm) |
+| `export` / `import` | Export/import backup strategies |
+| `status` | Backup status dashboard |
+| `ignore` | Generate .sbackupignore file |
+| `versions` | View backup version history |
+| `schedule` | Export cron/schtasks configuration |
+| `webhook` | Configure webhook presets |
+| `config` | Encrypt/decrypt/validate config |
+| `report` | Generate HTML/JSON backup reports |
+| `search` | Search files in backup |
+| `xsearch` | Cross-archive search |
+| `clean` | Clean old backups |
+| `completion` | Generate shell completion scripts |
+| `wizard` | Interactive configuration wizard |
+| `task` | Task queue management |
+| `audit` | Audit log queries |
+| `hooks` | Manual hook execution |
+| `profile` | Configuration profile management |
+| `rotate` | Backup rotation cleanup |
+| `diskcheck` | Disk space estimation |
+| `benchmark` | Compression format benchmarking |
+| `integrity` | Directory integrity verification |
+
+### Remote Backup Enhancements
+
+- **SFTP**: Auto-detect default SSH keys (~/.ssh/id_rsa, id_ed25519)
+- **SFTP**: Host key verification with known_hosts
+- **SFTP**: Allow password fallback on private key auth failure
+- **WebDAV**: Zero-dependency urllib implementation
+- **WebDAV**: SSRF protection (protocol/IP validation)
+- **WebDAV**: Proper PROPFIND redirect handling
+- **S3**: MinIO client with path prefix support
+
+### Security
+
+- PBKDF2 encryption for sensitive config fields
+- HMAC-SHA256 config tamper detection
+- SSRF protection for WebDAV and webhook URLs
+- Safe archive extraction (path traversal prevention)
+
+### Developer Experience
+
+- 37 CLI commands
+- 37 source modules
+- 9 language translations (665 keys each)
+- 940 tests, 0 failures
+- CI/CD: pytest on 3 platforms x 2 Python versions
+- Release automation with versioned binary names
+
+## Installation
+
+```bash
+pip install sbackup-cli
+```
+
+**Binary downloads:**
+
+| Platform | File |
+|----------|------|
+| Windows x64 | `sbackup-2.0.0-windows-x64.exe` |
+| macOS ARM64 | `sbackup-2.0.0-macos-arm64` |
+| macOS x64 | `sbackup-2.0.0-macos-x86_64` |
+| Linux x64 | `sbackup-2.0.0-linux-x86_64` |