Cal.com v6.1.8stable Released Jan 29, 2026
โš ๏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
Read the original context โ†—
Source flags breaking changes โ€” review applicability
๐Ÿ“„ .MD
โšก 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)

๐Ÿ’ป Software Engineers & Devs

Check the source notes against the package and APIs you use before upgrading.

๐Ÿ“Š Product & Engineering Leads

Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.

โš™๏ธ DevOps & Security

Verify the target version, runtime requirements and rollback procedure in the official documentation.

โš ๏ธ Breaking Changes & Deprecations (1)

  • fix: atoms breaking by @Ryukemeister in https://github.com/calcom/cal.com/pull/27380

โœจ 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

๐Ÿ”ง 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
๐Ÿ“„ 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