# Cal.com v1.0 — Release & Upgrade Intelligence
- **Product:** Cal.com (https://cal.com)
- **Version:** v1.0
- **Released:** Sep 21, 2021
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/calcom/updates/v1.0/

## Executive Summary (TL;DR)
Cal.com v1.0. Source highlight: Read more about the release here: https://cal.com/blog/calendso-rebrands-to-cal-com

## Breaking Changes & Deprecations
- Fix breaking word style on location informations - Book page by @guillaume-ro-fr in https://github.com/calendso/calendso/pull/616

## New Features
- docs(README): Add Prisma to the list of tools
- Docs - Added more details on info about obtaining google api creds
- add NEXTAUTH_URL to environment variables
- Added ics library, added icon to download .ics on the success page.
- Adds Office 365 / Outlook.com Calendar Integration
- Add office 365 calendar instructions

## Improvements
- README Improvements
- docs(README): Improve "Development Setup"
- Take server config into account whilst listing integrations, improved…
- Perform simple validation for required fields
- Telemetry improvements
- Improved 'Create your first event type' layouting

## Bug Fixes
- Fixed some minor bugs that caused console errors
- Fix for a bug when updating an event type
- Fixes adding google integration not appearing in the dashboard
- csrfToken->getCsrfToken is required by webpack5 (fixes #123, thanks @jacobocode)
- Fixes #134, invalid add to google calendar link on success page.
- fix calendar style and resolve some TS lint errors