# Cal.com v3.5.0 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v3.5.0
- **Released:** Nov 15, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v3.5.0/

## Executive Summary (TL;DR)
Cal.com v3.5.0. Source highlight: fix: getting shimmer app keys

## New Features
- feat: Stripe paid apps flow
- chore: [app dir bootstrapping 10] adds ab tests middleware
- feat: booking errors logging

## Bug Fixes
- fix: getting shimmer app keys
- revert: "fix: create prisma client singleton with immediately invoked function"
- fix: Fix 'Book a new time' link in request-reschedule for Team Event
- feat: POST/PATCH `availabilities` API to accept `date` field
- fix: avatar remove button
- fix: round-robin booked out of availability