# Should You Upgrade to Synology DSM 7.4.1? Canonical: https://cloudzat.com/should-you-upgrade-to-dsm-7-4/ Full Markdown: https://cloudzat.com/should-you-upgrade-to-dsm-7-4/index.md Cluster context: https://cloudzat.com/ai/synology-technical/context.json Purpose: Decide whether to upgrade to Synology DSM 7.4.1 using model support, package compatibility, backups, USB/UPS fixes, rollback limits and maintenance risk. Direct answer: DSM 7.4.1 includes fixes after the initial 7.4 release, including issues involving USB UPS recognition and USB devices on certain models. If your NAS is stable on an older DSM and runs critical third-party packages, verify compatibility before crossing the no-downgrade boundary. Synology NAS product groups are NAS-only. Accessories are excluded. Use the canonical page for the latest or last-verified retained marketplace price and image evidence. Do not infer a live price from this file.