# Saleor 3.21.9 — Release & Upgrade Intelligence
- **Product:** Saleor (https://saleor.io)
- **Version:** 3.21.9
- **Released:** Jul 18, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/saleor/updates/3.21.9/

## Executive Summary (TL;DR)
Saleor 3.21.9. Source highlight: Fix race condition in TransactionUpdate mutation when updating checkout/order prices

## Bug Fixes
- Fix race condition in TransactionUpdate mutation when updating checkout/order prices
- Fix race condition in TransactionInitialize mutation when updating checkout/order prices
- Fix checkout.discount amount when override is set