Seamlessly open 4D code from 4D into VS Code
Many developers want to bring the best of the VS Code ecosystem to their everyday 4D work: AI-assisted coding, Git integration, its extension library ...
October 20, 2026
1 min read
4D Language
Design application logic with strong typing, object oriented principles, structured error handling, and modular class architecture. Write clear, maintainable code that works consistently across desktop, web, REST, and client server environments.
Streamline Your Clean-Up Code with the “defer” Command
What’s more tedious than writing repetitive clean-up code at every possible exit point of a complex method? Whether you are managing document closing...
July 13, 2026
1 min read
Seamless Dependencies Management is coming to VS Code!
When we introduced the 4D Project Dependencies, our goal was simple: to take the headache out of managing components. Whether your components are stor...
May 12, 2026
1 min read
Forget server-side wrappers, use 4D Sessions from the client
Enhance your end users' experience in client-server applications by taking advantage of 4D sessions. Native and automatically created as soon as a use...
April 30, 2026
1 min read
Client-server – A new way to execute logic on server
In client-server mode, your logic often requires resources hosted on the server. To run code on the server, you are used to writing dedicated project ...
April 29, 2026
1 min read
Enhancement of command syntax checking in the editor
In our previous post, we highlighted how improvements in type inference and error handling help make 4D development more reliable. The 4D code editor ...
April 28, 2026
1 min read
HTTPS Requests: macOS Keychain support is here!
With the release of 4D 21 R3, we are bringing the power of the macOS Keychain to your HTTPS requests and agents, joining our existing support for the ...
April 28, 2026
1 min read
Execute Code from Text with 4D.Method
Business applications are constantly evolving, and new logic is often required even after deployment. In some cases, applications store business rules...
April 27, 2026
1 min read
Simplify JSON Validation and Boost Robustness
When exchanging data between applications, web services, or APIs, even the slightest structural error can break everything. That’s why JSON data valid...
April 27, 2026
1 min read
Searching Across Host Projects and Components in 4D
When working on a large 4D application, it is common to split functionality across a host project and several components. This modular architecture ke...
January 21, 2026
1 min read