# Saleor 3.18.4 — Release & Upgrade Intelligence
- **Product:** Saleor (https://saleor.io)
- **Version:** 3.18.4
- **Released:** Dec 14, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/saleor/updates/3.18.4/

## Executive Summary (TL;DR)
Saleor 3.18.4. Source highlight: Fix handling subscription with empty data (#14988) (e15b97de1a)

## New Features
- Add migrations for idempotency field, and index (#14999) (ae0a744372)

## Bug Fixes
- Fix handling subscription with empty data (#14988) (e15b97de1a)