# Cal.com v6.1.8 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v6.1.8
- **Released:** Jan 29, 2026
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v6.1.8/

## Executive Summary (TL;DR)
Cal.com v6.1.8. Source highlight: chore: Disables syncing of calendarList on overlay calendar fetch

## Breaking Changes & Deprecations
- fix: atoms breaking by @Ryukemeister in https://github.com/calcom/cal.com/pull/27380

## New Features
- feat: Use `RoutingTraceService` to write assignment reasons
- feat: Add `RoutingFormTrace`
- feat: Add `CrmRoutingTraceService` and `SalesforceRoutingTraceService`
- refactor: join teams with feature enabled directly in findNextSubscriptionBatch query
- feat: add webhook endpoint for Vercel deployment promoted event to promote trigger.dev
- feat: enable PBAC feature flag globally via migration

## Bug Fixes
- fix: add composite index on SecondaryEmail for email verification queries
- fix: reduce forcedSlowMode rate limit from 30s to 1s
- fix: exclude third-party video apps from areCalendarEventsEnabled setting
- refactor: fix 413 Request Entity too large error when big image files are uploaded
- fix: show bookings-v3 only in the settings but not in the banner
- fix: use WEBAPP_URL for team payment redirect instead of req.nextUrl.origin