# Cal.com v5.6.20 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v5.6.20
- **Released:** Sep 14, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v5.6.20/

## Executive Summary (TL;DR)
Cal.com v5.6.20. Source highlight: fix: Instead of type casting user.id, coerce string to number

## New Features
- feat: add number to call in web call
- feat: redirect authenticated users from signup page
- feat: support web calls in webhook
- chore: add webhook architecture skeleton
- feat: cal ai promo design
- feat: call history V1

## Improvements
- perf: remove trpc `basecamp3` router

## Bug Fixes
- fix: Instead of type casting user.id, coerce string to number
- fix: OptionalApiAuthGuard when only client id is provided
- fix: updating managed user email
- fix: RateLimit verify email and fix
- fix: processWorkflowStep format cal event
- fix: api v2 typing issues