# Cal.com v4.8.2 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v4.8.2
- **Released:** Dec 17, 2024
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v4.8.2/

## Executive Summary (TL;DR)
Cal.com v4.8.2. Source highlight: refactor: getContacts

## New Features
- feat: Booker atom slots callbacks
- refactor: added `ApiPropertyOptional` decorator for optional fields in api for better documentation
- chore: add TLD in username of managed users
- feat: v2 wildcard redirectURIs
- feat: v2 teams CRUD
- feat: allows forcing/skipping calendar cache serving

## Improvements
- chore: New booking perf tracing
- perf: limit # of host members for OG image
- chore: improve prisma exception filter messages
- perf: More tracing for handleNewBooking

## Bug Fixes
- perf: improve insights where query and type fix
- fix: trigger guest no show bug
- fix: column f.userid does not exist
- fix: webhook page improvements
- fix: redirect on calendar oauth denied auth
- fix: private team does not hide team members for managed event type