# Cal.com v6.0.0 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v6.0.0
- **Released:** Dec 15, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v6.0.0/

## Executive Summary (TL;DR)
Cal.com v6.0.0. Source highlight: fix: checkout session completed

## New Features
- refactor: move calAIPhone-specific repositories to features from lib
- feat: dist tracing 4
- feat: extract core booking audit infrastructure from PR 25125
- feat: add gradient indicator for scrollable event descriptions
- feat(booking): implement cross-page/week navigation in booking details sheet with view persistence
- feat: Add Holidays feature to block availability on public holidays

## Bug Fixes
- fix: checkout session completed
- fix: one integration test flake
- fix: Make "Show note on public booking page" consistent across all views of OOO
- fix: Ensure first user in URL is organiser for dynamic group bookings
- fix: companion CI
- refactor: Fix N+1 queries and optimize database operations