# Saleor 3.16.17 — Release & Upgrade Intelligence
- **Product:** Saleor (https://saleor.io)
- **Version:** 3.16.17
- **Released:** Dec 19, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/saleor/updates/3.16.17/

## Executive Summary (TL;DR)
Saleor 3.16.17. Source highlight: Handle invalid image MIME type during thumbnail generation - #15089

## New Features
- Add missing autodiscover for attributer migration tasks. - #15085

## Bug Fixes
- Fix collections order in `CheckoutLinesInfoByCheckoutTokenLoader` - #15078
- Fix `visible_to_user` makes unnecessary calls when the channel is not passed.  - #15060