# Cal.com v4.0.3 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v4.0.3
- **Released:** Apr 23, 2024
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v4.0.3/

## Executive Summary (TL;DR)
Cal.com v4.0.3. Source highlight: fix: browser back button not working

## New Features
- feat: improve error handling for signup events
- chore: `EventManager` add `cancelEvent` method
- feat: SMS/Whatsapp to attendee for teams
- feat: Add app store entry for "Autocheckin" (Challenge/Bounty)

## Bug Fixes
- fix: browser back button not working
- fix: Add navigatedToBooker event and fix infinite loop of events
- fix: Improve French translations
- fix: settings layout for org admin