Cal.com v4.8.0 — 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 1 🔧 Bug Fixes 6

⚡ Executive Summary (TL;DR)

Cal.com v4.8.0. Source highlight: fix: Invalid time zone specified: Etc/Unknown

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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 (1)

feat: update translations via @replexica

🔧 Bug Fixes & Patches (6)

fix: Invalid time zone specified: Etc/Unknown
fix: add no show guest
fix: wrong workflow notifications when enabling workflows
fix: improve getAllUserBooking filter by teamIds
fix: don't send reassingment email to attendee for past events
revert: "fix: correct line-breaks in calendar event description"

📄 View Raw Release Notes (Original Developer Log)

## What's Changed * fix: Invalid time zone specified: Etc/Unknown by @anikdhabal in https://github.com/calcom/cal.com/pull/18121 * fix: add no show guest by @Udit-takkar in https://github.com/calcom/cal.com/pull/18075 * fix: wrong workflow notifications when enabling workflows by @CarinaWolli in https://github.com/calcom/cal.com/pull/18169 * fix: improve getAllUserBooking filter by teamIds by @ThyMinimalDev in https://github.com/calcom/cal.com/pull/18171 * fix: don't send reassingment email to attendee for past events by @CarinaWolli in https://github.com/calcom/cal.com/pull/18173 * chore: bump platform libraries version for api-v2 by @ThyMinimalDev in https://github.com/calcom/cal.com/pull/18174 * revert: "fix: correct line-breaks in calendar event description" by @zomars in https://github.com/calcom/cal.com/pull/18175 * fix: change trigger time for form submitted not booked webhook by @CarinaWolli in https://github.com/calcom/cal.com/pull/18176 * fix: app router - viewport / favicon metadata by @hbjORbj in https://github.com/calcom/cal.com/pull/18177 * fix: trpc/react-query — only one query client should exist by @hbjORbj in https://github.com/calcom/cal.com/pull/18179 * feat: update translations via @replexica by @calcom-bot in https://github.com/calcom/cal.com/pull/18158 * chore: update app layout by @hbjORbj in https://github.com/calcom/cal.com/pull/17126 **Full Changelog**: https://github.com/calcom/cal.com/compare/v4.7.25...v4.8.0

← Older Version Cal.com v4.7.25 Newer Version → Cal.com v4.8.1