# Cal.com v5.4.1 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v5.4.1
- **Released:** Jun 17, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v5.4.1/

## Executive Summary (TL;DR)
Cal.com v5.4.1. Source highlight: fix: duplicate workflow reminders caused by scanWorkflowBody

## New Features
- feat: optimize Prisma queries by replacing findFirst with findUnique where applicable
- chore: add global prefix to api v2 via env variable for selfhost

## Bug Fixes
- fix: duplicate workflow reminders caused by scanWorkflowBody
- fix: attendee could not reschedule or cancel unconfirmed events directly from the email
- fix: v2 event type disable guests
- fix: replyTo includes the correct email
- fix: event type settings atom not saving