# Saleor 3.16.14 — Release & Upgrade Intelligence
- **Product:** Saleor (https://saleor.io)
- **Version:** 3.16.14
- **Released:** Dec 06, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/saleor/updates/3.16.14/

## Executive Summary (TL;DR)
Saleor 3.16.14. Source highlight: Fix attributes save performance  (#14938) (018d95fd7f)

## New Features
- Add an upper index on user email (#14928) (6fef5618b3)
- Add missing lock to avoid deadlocks between checkout process and payment plugins (#14890) (e4d5335376)

## Bug Fixes
- Fix attributes save performance  (#14938) (018d95fd7f)