v4.5

langgenius/dify-sandboxv4.5Sep 19, 2025by dreambladeflag

AI Summary

This release focuses on enhancing bulk email capabilities and marketing workflows. It introduces advanced contact management features like tag management and activity tracking, alongside improved task editing and SMTP authentication options.

Key Highlights

Bulk Email Enhancements: Added tag management, contact activity tracking, and batch tag operations.
Marketing Upgrades: Introduced tag-based filtering, dynamic task editing, and one-click task duplication.
Core Optimizations: Redesigned unsubscribe templates and implemented flexible SMTP relay authentication.

New Features

Subscription list tag management
Contact activity tracking (last active time)
Batch tag operations (add/remove multiple IDs)
Unsubscribe configuration options for groups
Tag-based filtering for marketing tasks
Dynamic task editing (sender, template, subject) while paused
One-click task duplication for campaigns
Flexible SMTP relay authentication support

Full Release Notes

# BillionMail v4.5 Release Notes  

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## ✨ New Features  

### 📧 Bulk Email Enhancements  
- **Subscription list tag management**  
  Added tag management functionality for subscription groups  
- **Contact activity tracking**  
  Record last active time for each contact  
- **Advanced contact organization**  
  Manage contacts by both tags and groups simultaneously  
- **Batch tag operations**  
  Add/remove multiple tag IDs in bulk for efficient task filtering  
- **Unsubscribe settings**  
  Added unsubscribe configuration options for subscription groups  
- **Improved contact analytics**  
  Enhanced logic for retrieving contact trend data  

### 📨 Email Marketing Upgrades  
- **Tag-based filtering**  
  Marketing tasks now support tag filtering for precise audience targeting  
- **Dynamic task editing**  
  Edit sender addresses, templates, and subjects while tasks are paused - changes apply immediately when resumed  
- **Task duplication**  
  One-click campaign replication for efficient repetitive task creation  

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## ⚙️ Core Optimizations  
- **Unsubscribe template redesign**  
  Completely revamped unsubscribe email templates with improved layout and user experience  
- **Flexible SMTP relay authentication**  
  Added optional authentication support and improved validation logic for non-authenticated relays  
- **Streamlined contact export**  
  Rebuilt export logic with browser-native file download responses  
- **Accurate engagement metrics**  
  Optimized email click-through rate calculation algorithm  

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## 🐛 Bug Fixes  
- **Performance optimization**  
  Fixed high CPU consumption when sending non-variant emails and improved Spintax parsing efficiency  
- **Address validation fix**  
  Resolved false email format errors when updating mail forwarding settings  
- **Stability improvements**  
  Patched various edge cases and minor stability issues across modules