# Cal.com v3.5.1 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v3.5.1
- **Released:** Nov 22, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v3.5.1/

## Executive Summary (TL;DR)
Cal.com v3.5.1. Source highlight: chore: Insights readonly DB client

## New Features
- perf: add idx scheduleId on eventType (CAL-2723)
- feat: implements basic user locking for admins
- feat: troubleshooter with weekly view (V2)
- feat: Base implementation of v2 of avatars
- test: Add more orgs tests
- chore: Add team invite tests

## Improvements
- perf: Increased memory/vCPU for slots perf
- revert: "perf: Increased memory/vCPU for slots perf (#12387)"

## Bug Fixes
- fix: saving credential id for payment apps
- fix(stripePaymentCallback): better errors
- fix: Wrong spelling of the word "pode" (fix-wrongStringPT-BR)
- fix: change api root statusCode to 200
- fix: add sendgrid-specific header only for SendGrid smtp server
- fix: weird date override behaviour