# Cal.com v6.1.13 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v6.1.13
- **Released:** Feb 09, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v6.1.13/

## Executive Summary (TL;DR)
Cal.com v6.1.13. Source highlight: feat: add delete confirmation dialog to webhook list items

## New Features
- feat: add delete confirmation dialog to webhook list items
- feat: High Water Mark (HWM) billing for monthly subscriptions
- feat: refactor UI to use coss + coupons UI
- feat: custom feedback dialog for feature opt-in
- refactor: replace FeaturesRepository with DI-based feature repositories
- feat: nav item dropdown animation implemented

## Improvements
- perf: reduce team page client payload with minimal data serialization
- perf: optimize organization member removal to prevent transaction timeout
- perf: Optimize DB calls and avoid N+1 queries in BookingAuditViewer

## Bug Fixes
- fix: toggle chevron icon direction in filter segment dropdown
- fix: ensure default calendars domain
- fix: add oauth client owner email to admin view
- fix: show bookings-v3 opt-in banner
- fix: cleaned the extra space in description before saving to avoid word break
- fix: open Join button in default browser instead of in-app browser