Deploy Fluent UI effortlessly in your 4D applications
With 4D 21 R2, Fluent UI remains in Developer Preview, but reaches a new milestone with a full native integration directly into 4D. While still in pre...
January 22, 2026
1 min read
For Developers
Build better 4D applications with practical patterns and technical deep dives from our blog.
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
4D AI: Sorting Query Results by Vector Similarity
In the Semantic search: querying by vector similarity post, we introduced how to query entities using vector similarity, a powerful way to find the mo...
January 20, 2026
1 min read
Better Error Handling and Type Inference for 4D Developers
When you’re coding in 4D or VS Code, clear and precise feedback from the editor makes all the difference. It helps you understand what’s happening in ...
January 20, 2026
1 min read
Enhance your Desktop Interface with Web widgets using 4D Qodly Pro
Ever wanted to enrich your user interface with widgets known from websites, such as a navigation map? Not by learning JavaScript and dealing with CSS ...
January 7, 2026
1 min read
ORDA – Handle an event-driven logic during database operations
This feature keeps going on with a new paradigm: handle data in an event-driven way. The 4D 21 provides a complete series of events related to databas...
November 28, 2025
1 min read
Goodbye 4D Internet Commands – Hello Modern Internet Integration
With the release of 4D 21, we’re officially saying goodbye to the 4D Internet Commands plugin, a long-standing companion for many developers since the...
November 17, 2025
1 min read
Modernize your 4D interfaces with Fluent UI
Behind the scenes, a significant engineering effort has been carried out to bring native Fluent UI integration into 4D. This means that 4D forms can n...
October 21, 2025
1 min read
Trim, Trim start, and Trim end in 4D
When working with user input, data cleaning, or text formatting, one of the most common tasks is removing unwanted whitespace. Whether it's a space ac...
October 17, 2025
1 min read
Convert Numbers with Ease: Enhanced String and Num Commands
When working with different numeric bases, such as binary or hexadecimal, converting between numbers and strings is a common task. With 4D 21, the Str...
October 17, 2025
1 min read