Cal.com v5.6.6 — Release Notes & Engineering Impact

Source available — automated, not human-reviewed

Component: calcom · Channel: stable. Automated analysis, not a compatibility certification. How this works.

Analysis updated: 2026-11-01.

Compatibility not verified — check source notes

📄 .MD

✨ Features 3 ⚡ Improvements 4 🔧 Bug Fixes 6

⚡ Executive Summary (TL;DR)

Cal.com v5.6.6. Source highlight: perf: do not use next/dist/server image optimizer

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Who Does This Impact? (Role-Based Analysis)

💻 Software Engineers & Devs

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

📊 Product & Engineering Leads

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

⚙️ DevOps & Security

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

✨ New Features & Capabilities (3)

feat: add startsWith operator to routing forms
feat: enable Stripe Adaptive Currencies for subscription flows
feat: atoms e2e tests

⚡ Performance & Enhancements (4)

perf: do not use next/dist/server image optimizer
refactor: improve most booked & least booked
perf: Make /icons page a static page
perf: Bundle English translation at build time and use dynamic imports for other assets and have HTTP call as a fallback

🔧 Bug Fixes & Patches (6)

fix: show correct input type for location in FormBuilder
fix: Missing `jose` module in `saml-jackson` package
fix: german translation for button in the onboarding flow
fix: Custom Event Redirect in Routing Form with Dropdown Based fields
fix: getting error when userid passed into booking filters
fix: fr and de translation for buttons on the onboarding flow

📄 View Raw Release Notes (Original Developer Log)

## What's Changed * perf: do not use next/dist/server image optimizer by @hbjORbj in https://github.com/calcom/cal.com/pull/23207 * feat: add startsWith operator to routing forms by @hariombalhara in https://github.com/calcom/cal.com/pull/23026 * refactor: improve most booked & least booked by @bandhan-majumder in https://github.com/calcom/cal.com/pull/23192 * fix: show correct input type for location in FormBuilder by @anikdhabal in https://github.com/calcom/cal.com/pull/23228 * perf: Make /icons page a static page by @hbjORbj in https://github.com/calcom/cal.com/pull/23324 * feat: enable Stripe Adaptive Currencies for subscription flows by @emrysal in https://github.com/calcom/cal.com/pull/23328 * fix: Missing `jose` module in `saml-jackson` package by @joeauyeung in https://github.com/calcom/cal.com/pull/23291 * fix: german translation for button in the onboarding flow by @sahitya-chandra in https://github.com/calcom/cal.com/pull/23336 * fix: Custom Event Redirect in Routing Form with Dropdown Based fields by @hariombalhara in https://github.com/calcom/cal.com/pull/17870 * fix: getting error when userid passed into booking filters by @anikdhabal in https://github.com/calcom/cal.com/pull/23344 * fix: fr and de translation for buttons on the onboarding flow by @sahitya-chandra in https://github.com/calcom/cal.com/pull/23347 * fix: recurring event isn't working by @anikdhabal in https://github.com/calcom/cal.com/pull/23346 * feat: atoms e2e tests by @Ryukemeister in https://github.com/calcom/cal.com/pull/23273 * chore: update playwright config for platform examples by @Ryukemeister in https://github.com/calcom/cal.com/pull/23352 * perf: Bundle English translation at build time and use dynamic imports for other assets and have HTTP call as a fallback by @hbjORbj in https://github.com/calcom/cal.com/pull/23303 **Full Changelog**: https://github.com/calcom/cal.com/compare/v5.6.5...v5.6.6

← Older Version Cal.com v5.6.5 Newer Version → Cal.com v5.6.7