Cal.com v5.9.15stable Released Dec 15, 2025
Impact Score: 5/10

Cal.com v5.9.15 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.

Compatibility not verified โ€” check source notes
๐Ÿ“„ .MD
โšก Executive Summary (TL;DR)

Cal.com v5.9.15. Source highlight: fix: unit test flake in CI

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.

โœจ New Features & Capabilities (6)

  • chore: Consolidate prefetching logic within `useTimesForSchedule` and add tests
  • feat: minium reschedule notice on events
  • style: add spacing and rounded corners to toolbar dropdown items
  • feat: added OAuth badges
  • feat: add skipContactCreation toggle to EventTypeAppCard component
  • refactor: create `CalVideoSettingsRepository` in `features` package

๐Ÿ”ง Bug Fixes & Patches (6)

  • fix: unit test flake in CI
  • fix: adds org slug to url in invite browser view
  • fix(webhooks): support routing form identifiers with spaces in payload templates
  • fix: not found nc command docker
  • fix: use relative redirects in booking confirmation routes to fix localhost redirect issue
  • fix: Lazy loaded Stripe proxy to avoid crash on BillingService setup
๐Ÿ“„ View Raw Release Notes (Original Developer Log)
## What's Changed * fix: unit test flake in CI by @anikdhabal in https://github.com/calcom/cal.com/pull/25780 * fix: adds org slug to url in invite browser view by @sean-brydon in https://github.com/calcom/cal.com/pull/25818 * chore: Consolidate prefetching logic within `useTimesForSchedule` and add tests by @hariombalhara in https://github.com/calcom/cal.com/pull/23918 * refactor: Use sessionStorage instead of localStorage for decoy booking data by @hariombalhara in https://github.com/calcom/cal.com/pull/24450 * chore: atoms rrHostSubsetIds changelog for release by @supalarry in https://github.com/calcom/cal.com/pull/25819 * chore: update AGENTS.md on running unit tests for specific test name by @eunjae-lee in https://github.com/calcom/cal.com/pull/25820 * fix(webhooks): support routing form identifiers with spaces in payload templates by @anikdhabal in https://github.com/calcom/cal.com/pull/25783 * fix: not found nc command docker by @sean-brydon in https://github.com/calcom/cal.com/pull/25823 * docs: how to fetch managed event type slots by @supalarry in https://github.com/calcom/cal.com/pull/24977 * fix: use relative redirects in booking confirmation routes to fix localhost redirect issue by @volnei in https://github.com/calcom/cal.com/pull/25794 * docs: link embed events to help center to avoid duplicate maintenance by @hariombalhara in https://github.com/calcom/cal.com/pull/25811 * fix: Lazy loaded Stripe proxy to avoid crash on BillingService setup by @emrysal in https://github.com/calcom/cal.com/pull/25400 * feat: minium reschedule notice on events by @sean-brydon in https://github.com/calcom/cal.com/pull/25575 * fix: Slugified event type slug when an event is created/updated from API v2 by @anikdhabal in https://github.com/calcom/cal.com/pull/25791 * fix(payments): add date and payment filters when cancelling bookings on app uninstall by @anikdhabal in https://github.com/calcom/cal.com/pull/25801 * fix: filter slots by requested date range to prevent date override leakage by @ThyMinimalDev in https://github.com/calcom/cal.com/pull/25822 * fix: OAuth for browser extension by @CarinaWolli in https://github.com/calcom/cal.com/pull/25834 * style: add spacing and rounded corners to toolbar dropdown items by @KartikLabhshetwar in https://github.com/calcom/cal.com/pull/25829 * feat: added OAuth badges by @PeerRich in https://github.com/calcom/cal.com/pull/25830 * feat: add skipContactCreation toggle to EventTypeAppCard component by @Pallava-Joshi in https://github.com/calcom/cal.com/pull/25756 * refactor: create `CalVideoSettingsRepository` in `features` package by @hbjORbj in https://github.com/calcom/cal.com/pull/25841 * fix: allow two dots in exclude email by @dhairyashiil in https://github.com/calcom/cal.com/pull/24968 * feat: Improve error handling in ratelimit by @sean-brydon in https://github.com/calcom/cal.com/pull/25223 * fix: enforce team-only access on premium toggles in cal video (#25680) by @eeshm in https://github.com/calcom/cal.com/pull/25681 * refactor: create HostRepository in `/features/host` by @hbjORbj in https://github.com/calcom/cal.com/pull/25842 * fix: add tests for simple test flow by @sean-brydon in https://github.com/calcom/cal.com/pull/25566 * refactor: create `PrismaOOORepository` in `/features/ooo` by @hbjORbj in https://github.com/calcom/cal.com/pull/25850 * refactor: create `DestinationCalendarRepository ` in `/features/calendars` by @hbjORbj in https://github.com/calcom/cal.com/pull/25851 * refactor: Move `OrganizationOnboardingRepository` from `lib` to `/features/organizations` by @hbjORbj in https://github.com/calcom/cal.com/pull/25854 * refactor: Move insights trpc router from features package to trpc layer by @hbjORbj in https://github.com/calcom/cal.com/pull/25778 * refactor: Move Users Admin TRPC router from features package to trpc layer by @hbjORbj in https://github.com/calcom/cal.com/pull/25816 * fix: added conditional check for the unkey logger to reduce the numbeโ€ฆ by @ifrah-ashraf in https://github.com/calcom/cal.com/pull/25858 * chore: Remove team-labels permissions by @keithwillcode in https://github.com/calcom/cal.com/pull/25862 * feat(companion): Add caching, redesign ui, and refactor code by @dhairyashiil in https://github.com/calcom/cal.com/pull/25654 * feat: upgrade to sdk 55 canary by @betomoedano in https://github.com/calcom/cal.com/pull/25810 * feat(companion): Event types screen update by @betomoedano in https://github.com/calcom/cal.com/pull/25847 * chore(companion): small wxt related fixes by @PeerRich in https://github.com/calcom/cal.com/pull/25866 * chore: bump next versions by @volnei in https://github.com/calcom/cal.com/pull/25864 ## New Contributors * @betomoedano made their first contribution in https://github.com/calcom/cal.com/pull/25810 **Full Changelog**: https://github.com/calcom/cal.com/compare/v5.9.14...v5.9.15