# Cal.com v5.7.9 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v5.7.9
- **Released:** Oct 07, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v5.7.9/

## Executive Summary (TL;DR)
Cal.com v5.7.9. Source highlight: fix: contentType is added incorrectly in the workflow ICS

## New Features
- feat: botid enabled on api/book/event api route
- chore: Add next-auth-options.ts to Foundation code owners
- feat: add usernameInOrg field to webhook organizer payload for organization users
- feat: update translations via @LingoDotDev

## Bug Fixes
- fix: contentType is added incorrectly in the workflow ICS
- fix: Restrict the length of emails as per RFC
- fix: timezone variable name does not match webhook payload
- fix: create missing migration for dropping obsolete indexes