# Cal.com v4.8.0 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v4.8.0
- **Released:** Dec 15, 2024
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v4.8.0/

## Executive Summary (TL;DR)
Cal.com v4.8.0. Source highlight: fix: Invalid time zone specified: Etc/Unknown

## New Features
- feat: update translations via @replexica

## Bug Fixes
- fix: Invalid time zone specified: Etc/Unknown
- fix: add no show guest
- fix: wrong workflow notifications when enabling workflows
- fix: improve getAllUserBooking filter by teamIds
- fix: don't send reassingment email to attendee for past events
- revert: "fix: correct line-breaks in calendar event description"