Impact Score: 5/10
Cal.com v4.6.6 — 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.
⚡ Executive Summary (TL;DR)
Cal.com v4.6.6. Source highlight: feat: Rerouting a booking with corrected responses
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 (1)
- feat: Rerouting a booking with corrected responses
⚡ Performance & Enhancements (3)
- perf: Increase vCPU for slots and routing forms
- perf: Single query user enrichment calls by array of userIds instead
- perf: duplicate getSchedule request
🔧 Bug Fixes & Patches (3)
- fix: Add troubleshooting data and ensure no errors in live mode of router.
- fix: allow gCal installs without a primary calendar
- fix(a11y): text color contrast
📄 View Raw Release Notes (Original Developer Log)
## What's Changed
* feat: Rerouting a booking with corrected responses by @hariombalhara in https://github.com/calcom/cal.com/pull/17074
* perf: Increase vCPU for slots and routing forms by @keithwillcode in https://github.com/calcom/cal.com/pull/17181
* refactor: Minor settings style & copy alterations by @baileypumfleet in https://github.com/calcom/cal.com/pull/17178
* fix: Add troubleshooting data and ensure no errors in live mode of router. by @hariombalhara in https://github.com/calcom/cal.com/pull/17188
* fix: allow gCal installs without a primary calendar by @zomars in https://github.com/calcom/cal.com/pull/17189
* perf: Single query user enrichment calls by array of userIds instead by @alishaz-polymath in https://github.com/calcom/cal.com/pull/17190
* perf: duplicate getSchedule request by @Udit-takkar in https://github.com/calcom/cal.com/pull/17191
* docs: small optimization by @mfranzke in https://github.com/calcom/cal.com/pull/17183
* fix(a11y): text color contrast by @mfranzke in https://github.com/calcom/cal.com/pull/17166
* chore: v4.6.6 by @keithwillcode in https://github.com/calcom/cal.com/pull/17199
**Full Changelog**: https://github.com/calcom/cal.com/compare/v4.6.5...v4.6.6