More value. Built to last.

4D 21 LTS is here and it’s the simplest way to do more with your existing 4D applications. This upgrade isn’t about change for the sake of change. It’s about making your applications smarter and more attractive to clients. No rewrite. No new architecture. Just more value, lower risk, and long-term confidence.

What changes with 4D 21

✅ AI becomes native: AI lives inside the platform, turning your existing data into smarter search. No external systems, no added complexity
✅ Vector classes: Your data remains private from external AI models 
✅ 4D Qodly Pro: Extend your application to the web 
✅ QUIC: Solutions automatically benefit from a new resilient networking
✅ 4D Write Pro: Documents that scale with your business 

Tell us which 4D release you’re currently using, and our Professional Services team will contact you to discuss the best upgrade path.

You get expert-built roadmap for a faster, smoother, and predictable upgrade, using the latest 4D 21 capabilities.