# Saleor 3.13.8 — Release & Upgrade Intelligence
- **Product:** Saleor (https://saleor.io)
- **Version:** 3.13.8
- **Released:** May 02, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/saleor/updates/3.13.8/

## Executive Summary (TL;DR)
Saleor 3.13.8. Source highlight: Fix checkout metadata fetches to not create checkout metadata objects - #12646

## New Features
- Add `uuid` field to App and AppInstallation - zero-downtime migration - #12630

## Bug Fixes
- Fix checkout metadata fetches to not create checkout metadata objects - #12646