# Strapi v4.0.1 — Release & Upgrade Intelligence
- **Product:** Strapi (https://strapi.io)
- **Version:** v4.0.1
- **Released:** Dec 22, 2021
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/strapi/updates/v4.0.1/

## Executive Summary (TL;DR)
Strapi v4.0.1. Source highlight: [core:admin] Product copy text changes v1 (https://github.com/strapi/strapi/pull/11752) @vincentbpro

## New Features
- [core:admin] feat: added interface language help message (https://github.com/strapi/strapi/pull/11766) @vincentbpro
- [core:helper-plugin] add test of pxToRem (https://github.com/strapi/strapi/pull/11870) @matsubaraDaisuke
- [core:strapi] Add unit tests for the entity validators (https://github.com/strapi/strapi/pull/11883) @Elhebert
- [plugin:i18n] Add test for Content API filter by locale (https://github.com/strapi/strapi/pull/11961) @iicdii
- [core:admin] Update ko translation, add missing key (https://github.com/strapi/strapi/pull/11734) @iicdii
- [core:admin] Add missing french translations (https://github.com/strapi/strapi/pull/11944) @maximeMD

## Improvements
- [core:admin] Product copy text changes v1 (https://github.com/strapi/strapi/pull/11752) @vincentbpro
- [core:admin] Build admin only when necessary and serve it from the admin package (https://github.com/strapi/strapi/pull/11954) @soupette
- [core:content-manager] Show creation information in the detail view (https://github.com/strapi/strapi/pull/11873) @abdonrd
- [core:email] style: email settings text change (https://github.com/strapi/strapi/pull/11884) @vincentbpro
- [core:strapi] Fetch all entries with limit -1 (https://github.com/strapi/strapi/pull/11479) @vincentbpro
- [plugin:graphql] Bump graphql-upload version & link content API scope to the custom mutations (https://github.com/strapi/strapi/pull/11727) @Convly

## Bug Fixes
- [cli] Fix the attribute generation for the CT generator (https://github.com/strapi/strapi/pull/11749) @Elhebert
- [core:admin] [Admin] Login error message fix (https://github.com/strapi/strapi/pull/11747) @ronronscelestes
- [core:admin] CM LV Settings Dnd fixes (https://github.com/strapi/strapi/pull/11755) @ronronscelestes
- [core:content-manager] Fix regex validation for empty string in non-required fields (https://github.com/strapi/strapi/pull/11808) @jakobsjoqvist
- [core:content-manager] Fix relation field in the content manager. (https://github.com/strapi/strapi/pull/11898) @soupette
- [core:content-manager] Fix copy from another locale with DZ (https://github.com/strapi/strapi/pull/11915) @soupette