# Saleor 3.9.28 — Release & Upgrade Intelligence
- **Product:** Saleor (https://saleor.io)
- **Version:** 3.9.28
- **Released:** Mar 02, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/saleor/updates/3.9.28/

## Executive Summary (TL;DR)
Saleor 3.9.28. Source highlight: Fix deadlock between adyen webhook and checkoutComplete (#12195) (b0d293d83f)

## Bug Fixes
- Fix deadlock between adyen webhook and checkoutComplete (#12195) (b0d293d83f)
- Fix invalid discount calculaion for specific product voucher that is applied once per order (#12122) (4d418b41eb)