Changelog
What's New in Chat API
Follow our latest product updates, new features, and API improvements.
June 2026 v4.2.0 New Feature
Bulk WhatsApp Messaging and Template Validation
- New bulk WhatsApp messaging endpoint: send to up to 10,000 contacts in one API call
- Template variable validation added to the Template Manager dashboard
- Webhook retry policy is now configurable per endpoint
- Improved error messages for rejected Meta template submissions
May 2026 v4.1.5 Improvement
Analytics Dashboard Redesign and Faster Webhooks
- Analytics dashboard fully redesigned with new chart types and export options
- Webhook delivery latency reduced by 40% through infrastructure improvements
- Date range picker added to all analytics views
April 2026 v4.1.0 New Feature
Email API Launch and CSV Contact Import
- Email API is now live: send transactional and marketing emails via REST API
- Contact Manager now supports bulk CSV import of up to 50,000 contacts
- Email open and click tracking available in Analytics
- New contact segmentation by tags and custom fields
March 2026 v4.0.3 Fix
Webhook Retry Logic Fix and Rate Limit Headers
- Fixed edge case where webhook retries could deliver duplicate events
- Rate limit headers (X-RateLimit-*) now included in all API responses
- Fixed pagination cursor issue in the contacts list endpoint
February 2026 v4.0.0 API Update
v4 API Launch with New Authentication Flow
- Chat API v4 is live with a redesigned authentication system using Bearer tokens
- v3 API continues in maintenance mode until December 2026
- New /v4/docs interactive documentation with live request testing
- Webhook signature verification upgraded to HMAC-SHA256
January 2026 v3.9.2 Improvement
Multi-language Dashboard with Bulgarian and Romanian Added
- Dashboard now available in Bulgarian and Romanian
- API documentation translated to all 11 supported languages
- Improved mobile responsiveness across all dashboard views
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