4D

Upgrade to 4D 21 LTS
Immediate Business Value
Long Term Confidence

With 4D 21, intelligence becomes native, the web becomes an extension instead of a rewrite, documents become dependable business assets, and identity and communication move back under your control. At the same time, the language continues to mature.

4D 21 LTS - AI
4D 21: Your AI Engine

Deliver more value from the data you already own

In 4D 21, AI is not an external layer you have to justify or maintain. It lives inside the platform, where your application already thinks. This lets you introduce intelligent behavior that increases perceived value without increasing architectural or operational cost...

4D 21 LTS - 4D Qodly Pro
4D Qodly Pro

Extend your application to the Web Without Splitting Your Architecture

4D Qodly Pro turns the web into a controlled extension of your application, not a separate project. You expand reach and modernize interfaces without rewriting logic, duplicating teams, or committing to long term frontend maintenance...

4D 21 LTS - 4D Write Pro
4D Write Pro

Deliver documents that scale with your business

With 4D Write Pro, document generation stops being a technical task and becomes a reliable business capability.

Documents are no longer just outputs. They are controlled assets that reflect your data, your rules, and your professionalism...

4D 21 LTS - 4D NetKit
4D NetKit & Emailing

Control identity and communications as part of your application

4D NetKit brings identity and communication back under a single, coherent model that stays aligned with your application logic.

With one model for identity, email, and calendar interactions, integrations are simpler, maintenance is lower, and the story you sell to clients is clearer and more credible...

4D 21 LTS - 4D Language
4D Language

Build, change, and ship with confidence

In real business applications, the true cost is not writing code. It is changing it safely over time.
With 4D 21, 4D Language evolves to reduce delivery risk, protect existing systems, and keep long-term maintenance predictable as scope grows...

4D 21 LTS is much mode than this!

4D 21 strengthens the parts of your application that decide long-term value.