โ ๏ธ Breaking Change
Impact Score: 7/10
Cal.com v6.1.8 โ Release Notes & Engineering Impact
Source available โ automated, not human-reviewed
Component: calcom ยท Channel: stable. Automated analysis, not a compatibility certification. How this works.
Analysis updated: 2026-11-01.
Breaking-change evidence from the source
fix: atoms breaking by @Ryukemeister in https://github.com/calcom/cal.com/pull/27380
โก Executive Summary (TL;DR)
Cal.com v6.1.8. Source highlight: chore: Disables syncing of calendarList on overlay calendar fetch
Who Does This Impact? (Role-Based Analysis)
๐ป Software Engineers & Devs
Check the source notes against the package and APIs you use before upgrading.
๐ Product & Engineering Leads
Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.
โ๏ธ DevOps & Security
Verify the target version, runtime requirements and rollback procedure in the official documentation.
โ ๏ธ Breaking Changes & Deprecations (1)
- fix: atoms breaking by @Ryukemeister in https://github.com/calcom/cal.com/pull/27380
โจ New Features & Capabilities (6)
- 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
๐ง Bug Fixes & Patches (6)
- 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
๐ View Raw Release Notes (Original Developer Log)
## What's Changed
* chore: Disables syncing of calendarList on overlay calendar fetch by @emrysal in https://github.com/calcom/cal.com/pull/27020
* feat: Use `RoutingTraceService` to write assignment reasons by @joeauyeung in https://github.com/calcom/cal.com/pull/27225
* fix: add composite index on SecondaryEmail for email verification queries by @emrysal in https://github.com/calcom/cal.com/pull/27357
* feat: Add `RoutingFormTrace` by @joeauyeung in https://github.com/calcom/cal.com/pull/27316
* feat: Add `CrmRoutingTraceService` and `SalesforceRoutingTraceService` by @joeauyeung in https://github.com/calcom/cal.com/pull/27318
* fix: reduce forcedSlowMode rate limit from 30s to 1s by @emrysal in https://github.com/calcom/cal.com/pull/27359
* refactor: join teams with feature enabled directly in findNextSubscriptionBatch query by @volnei in https://github.com/calcom/cal.com/pull/27364
* chore: trigger.version.ts to set trigger tasks versions in prod by @ThyMinimalDev in https://github.com/calcom/cal.com/pull/27333
* docs: clarify bookerReopened and bookerReloaded are for prerendered modals by @hariombalhara in https://github.com/calcom/cal.com/pull/27348
* feat: add webhook endpoint for Vercel deployment promoted event to promote trigger.dev by @ThyMinimalDev in https://github.com/calcom/cal.com/pull/27340
* fix: exclude third-party video apps from areCalendarEventsEnabled setting by @ThyMinimalDev in https://github.com/calcom/cal.com/pull/27230
* refactor: fix 413 Request Entity too large error when big image files are uploaded by @hariombalhara in https://github.com/calcom/cal.com/pull/27285
* fix: show bookings-v3 only in the settings but not in the banner by @eunjae-lee in https://github.com/calcom/cal.com/pull/27330
* fix: use WEBAPP_URL for team payment redirect instead of req.nextUrl.origin by @sean-brydon in https://github.com/calcom/cal.com/pull/27233
* fix: atoms breaking by @Ryukemeister in https://github.com/calcom/cal.com/pull/27380
* feat: enable PBAC feature flag globally via migration by @sean-brydon in https://github.com/calcom/cal.com/pull/27376
* feat: add organization.passwordReset PBAC permission by @sean-brydon in https://github.com/calcom/cal.com/pull/27377
* docs: api v2 and examples app setup by @supalarry in https://github.com/calcom/cal.com/pull/27290
* fix: preserve UI config across iframe resets for element-click embeds by @joeauyeung in https://github.com/calcom/cal.com/pull/27363
* feat: add invoice banner + block additions to teams/orgs by @sean-brydon in https://github.com/calcom/cal.com/pull/27327
* chore: Remove noProcessGlobal for atoms by @volnei in https://github.com/calcom/cal.com/pull/27382
* feat: implement webhook tasker with async/sync fallback by @alishaz-polymath in https://github.com/calcom/cal.com/pull/27378
* feat: Add infrastructure for no-show audit integration by @hariombalhara in https://github.com/calcom/cal.com/pull/27187
* fix: parse raw body Buffer in Vercel webhook controller by @ThyMinimalDev in https://github.com/calcom/cal.com/pull/27384
* chore: update i18n keys to match effectiveReason values by @eunjae-lee in https://github.com/calcom/cal.com/pull/27381
* refactor: move feature-flags, calendars, and schedules components from packages/features to apps/web/modules by @hbjORbj in https://github.com/calcom/cal.com/pull/27222
**Full Changelog**: https://github.com/calcom/cal.com/compare/v6.1.7...v6.1.8