Synology has released the latest version of its DiskStation Manager 7.3 operating system. The update combines higher storage efficiency with advanced security features, modern AI options, and flexible disk support. Users benefit from intelligent data tiering, privacy-compliant AI usage and new collaboration tools for Synology Drive and MailPlus.
- Automatic data tiering for efficient storage management
- Advanced security features with risk indicators such as KEV, EPSS and LEV
- AI-powered collaboration via enhanced Synology AI Console
- More drive flexibility including support for third-party manufacturers
Intelligent storage management with data tiering
With DSM 7.3, Synology introduces Synology Tiering – automatic file management between different storage tiers. Frequently used “hot” data remains on high-performance storage media, while rarely used “cold” data is relocated at low cost. Users can use individual guidelines to determine when files are moved – based on the last change or access frequency, for example.
This feature not only increases overall efficiency, but also reduces the cost of storage expansion. In combination with Synology’s proven storage architecture, tiering ensures that even large data sets are optimally managed without compromising system performance.
A new level of security
Synology continues to emphasize security as a central pillar of its development. Over 50 proactive security updates have been rolled out in the past twelve months. DSM 7.3 complements these measures with new risk indicators such as KEV (Known Exploited Vulnerabilities), EPSS (Exploit Prediction Scoring System) and LEV (Local Exploit Value), which allow for more accurate prioritization and mitigation of threats.
Additionally, the revamped Office Suite improves collaboration: Synology Drive gets shared labels, optimized file requests and new locking features, while MailPlus enhances email security with moderation and domain sharing. These changes help teams to work in a more structured and secure way.
AI-powered collaboration with a focus on data protection
Since August 2025, the Synology AI Console has been installed on over 430,000 systems. DSM 7.3 extends its range of functions by masking and filtering data before it is passed on to external AI services. This keeps sensitive information protected and workflows reliable.
In addition, support for all OpenAI-compatible APIs will be integrated in the future, allowing organizations to seamlessly connect their own private AI environment – with complete control over their data. The combination of local execution and API compatibility makes the AI Console a versatile tool for modern, data-secure AI applications.
More flexibility in drive selection
DSM 7.3 brings extended compatibility for third-party drives in the DiskStation Plus, Value and J series (model year 2025). Users can not only install them, but also create storage pools with them. In conjunction with the existing support for migrations, the storage environment can be flexibly adapted.
Synology is working in parallel with drive manufacturers to further expand certified media to ensure stable and secure integration. The Third-Party Validation Program ensures continuous quality assurance and high operational reliability.
Conclusion
DSM 7.3 is a powerful update that takes storage management, security, AI integration and hardware flexibility to a new level. With features such as data tiering, advanced risk indicators and OpenAI-compatible AI Console, it offers companies and private users alike a future-proof foundation for efficient and secure data management. The new version is now available for download. Additional details can be found on the Synology website.
