# Saleor 3.23.39 — Release & Upgrade Intelligence
- **Product:** Saleor (https://saleor.io)
- **Version:** 3.23.39
- **Released:** Oct 06, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/saleor/updates/3.23.39/

## Executive Summary (TL;DR)
Saleor 3.23.39. Source highlight: Tests: fixed flaky test case (`test_get_default_fulfillment_payload`)

## New Features
- Added support for external references in collections
- Saleor now notifies staff when a new order is created via `draftOrderComplete()` (when using the staff notification feature)
- Added `voucherDetails` to `CheckoutError` explaining why a rejection occurred

## Bug Fixes
- Tests: fixed flaky test case (`test_get_default_fulfillment_payload`)
- Webhooks: fixed stock webhook subscriptions failing when the variant was deleted
- Warehouses: fixed wrong stock quantity calculation when two or more warehouses have the same amount in stock which could cause out of stock errors while there is sufficient stock