# Cal.com v5.3.12 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v5.3.12
- **Released:** Jun 12, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v5.3.12/

## Executive Summary (TL;DR)
Cal.com v5.3.12. Source highlight: feat: Round Robin timestamp basis

## New Features
- feat: Round Robin timestamp basis
- feat: override name in daily video
- feat: add credit purchase log
- feat: added validation to limit event duration to 1440 minutes (24 ho…

## Improvements
- perf: Implement worker threads for getAvailableSlots to prevent CPU blocking

## Bug Fixes
- fix: cascade organization hideBranding setting to user and team events
- fix: cal atoms  schedule container class in availability settings custom class names not being applied
- fix: multi-line formatted correctly for sms
- fix: provide timeZone to /insights from the server side
- fix: remove deprecated fields from retell ai