# Cal.com v5.9.15 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v5.9.15
- **Released:** Dec 15, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v5.9.15/

## Executive Summary (TL;DR)
Cal.com v5.9.15. Source highlight: fix: unit test flake in CI

## New Features
- chore: Consolidate prefetching logic within `useTimesForSchedule` and add tests
- feat: minium reschedule notice on events
- style: add spacing and rounded corners to toolbar dropdown items
- feat: added OAuth badges
- feat: add skipContactCreation toggle to EventTypeAppCard component
- refactor: create `CalVideoSettingsRepository` in `features` package

## Bug Fixes
- fix: unit test flake in CI
- fix: adds org slug to url in invite browser view
- fix(webhooks): support routing form identifiers with spaces in payload templates
- fix:  not found nc command docker
- fix: use relative redirects in booking confirmation routes to fix localhost redirect issue
- fix: Lazy loaded Stripe proxy to avoid crash on BillingService setup