# Cal.com v5.9.1 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v5.9.1
- **Released:** Nov 19, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v5.9.1/

## Executive Summary (TL;DR)
Cal.com v5.9.1. Source highlight: fix: correct square image validation logic in resizeBase64Image

## New Features
- feat: add defaultPhoneCountry prop with ISO 3166-1 alpha-2 type safety
- feat: normalize routing form identifier field with URL-safe format
- feat: add organization-level autofill disable setting
- feat: remove OAuth clients link from settings navigation
- feat: [Booking Audit Stack - 1] Add Booking Audit System foundation (database schema and repositories)
- feat: add UUID v7 and @db.Uuid to AuditActor model

## Improvements
- test: Improve create teams handler tests

## Bug Fixes
- fix: correct square image validation logic in resizeBase64Image
- fix: made show all columns work correctly
- fix: german-translation-link-meeting
- chore: fix one flake and Update test results repository to test-results-2
- fix: empty screen added in routing position page when no options are present
- fix: api v2 empty event type array if no username