SQL Server 2016 and 2017: Preparing for End of Life in 2026 and 2027
If your business relies on Microsoft SQL Server, the clock is ticking for two widely used versions—SQL Server 2016 and SQL Server 2017. While they may still be running smoothly today, both will reach the end of Microsoft’s extended support in the next few years. When that happens, your systems will no longer receive critical security updates, leaving them exposed to potential threats.
Now is the time to plan ahead so you’re not facing a last-minute scramble.
Understanding SQL Server’s Lifecycle
Microsoft SQL Server has a predictable 10-year support lifecycle:
Mainstream Support (First 5 Years) — Includes feature updates, bug fixes, and security patches.
Extended Support (Next 5 Years) — No new features—only security updates.
End of Life — No updates at all, making it risky to keep running the software.
Once a version hits end of life, it becomes a prime target for cyberattacks and compliance issues.
Here’s where the two versions stand today:
SQL Server 2016 — End of extended support: July 14, 2026
SQL Server 2017 — End of extended support: October 12, 2027
That may seem far away, but major database upgrades take time to plan, test, and implement—especially if your business relies on complex applications and integrations.
Why You Should Upgrade Before End of Life
1. Security risks — Without security patches, your system is vulnerable to known exploits.
2. Compliance requirements — Many industries require that software remain supported to meet audit and regulatory standards.
3. Vendor compatibility — Software vendors often stop supporting older SQL Server versions, which can cause critical business applications to break.
4. Performance gains — Newer versions offer performance optimizations, enhanced features, and better scalability.
Common Questions About Upgrading
Do I have to upgrade right now?
Not necessarily—but the sooner you plan, the less likely you are to run into downtime or rushed migration costs later.
Can I just stay on my current version?
Once support ends, you can, but you’ll be taking on significant security and operational risks. Additionally, remaining on an end-of-life SQL Server may land you in violation of some compliance requirements.
Will my current applications work with the new version?
That depends on your software vendors and integration needs—this is one reason we recommend starting the assessment process early.
Start Planning Your Upgrade Now
SQL Server 2016 and 2017 may still have some life left in them, but their end-of-support deadlines are coming quickly. The earlier you start your upgrade planning, the smoother the transition will be—and the better you can avoid security, compliance, and compatibility headaches.
At Sovereign Systems, we can help you assess your current environment, map out a migration plan, and ensure your business is ready for the future.
Not sure what the best path forward is? Sovereign Systems can help you assess your SQL environment and determine the best upgrade strategy for your business. Reach out today.