Better Results in Less Time

• Enhanced LSP Support for faster, more reliable Code Insight, including code completion, parameter completion, and symbol information.

• Updated Library Path Management for converting paths to and from absolute paths using environment variables.

• New IDE Features to improve user experience, including a new progress dialog that shows IDE execution during long-running operations.

• Extended Migration Tool for faster updates using configuration files for FireDAC, Desktop, Platforms, and Code Formatting.

• Automatic Installation of Delphi, C++Builder, and RAD Studio in the background without UI interaction.

Productivity Enhancements

RAD Studio 10.4.2 includes new tools for rapid development of impressive applications, enhanced migration tools for quick upgrades, and a new background installation system that runs automatically.

• A new progress dialog displays the execution status of the IDE during long-running operations.

• Code Insight support in RAD Studio (using LSP) has been significantly enhanced for better, faster, and more reliable Code Insight in both Delphi and C++.

• An improved migration tool simplifies the upgrade process and allows IDE configurations to be copied.

These productivity enhancements streamline the development process, enabling developers to work more efficiently and effectively.

Performance and Quality Improvements

Version 10.4.2 includes improved integration with SOAP web services, optimizing both the WSDL import tool and SOAP client calls.

The updated Parallel Computing Library provides a modern approach to programming multi-threaded applications, leveraging the benefits of modern multi-core CPUs.

A new debugging view makes it easier to determine which data is stored in generic collections during debugging.

Technologies for database and remote data access have also been improved, including built-in FireDAC, InterBase, SQLite, PostgreSQL, and Oracle drivers, as well as the REST Client Library and support for AWS and Azure.

Additionally, RAD Studio 10.4.2 includes over 700 fixes, both internally identified and reported by customers.

Enhanced Windows Support

RAD Studio 10.4.2 offers industry-leading support for Windows applications with the most comprehensive library available for developing native Windows applications, the Visual Component Library (VCL).

New VCL Controls:

• TControlList: A virtual, high-performance control for very long lists.

• TNumberBox: Supports integer, floating-point, and currency values.

MSIX Package Support

Creating packages for the Windows Store has been simplified with support for MSIX, Microsoft's new recommended package format for Windows applications.

Konopka Component Suite Integration

• Improved support for styles from the Konopka Component Suite with over 200 UI controls for Windows.

• Enhanced support for designers for Delphi and C++ Builder VCL applications.

Enhanced Delphi and C++Builder Support

Delphi Enhancements:

• Over 20 major compiler performance improvements to significantly reduce compilation time.

• Extended Code Insight support with:

  • Highlighting of warnings and hints in the source code editor.

  • New rendering improvements to enhance visibility.

  • Improved support for packages.

  • Navigation using Ctrl+Click.

  • And much more.

C++Builder Enhancements:

• Updated Code Insight for more robust programming assistance.

• New approach to debugging information, reducing:

  • Memory usage for the Win64 linker.

  • Application output size, also known as Split DWARF.

• Improved exception handling system, enhancing application reliability.

• RTL now includes the latest version of Dinkumware STL.

These improvements provide better performance, enhanced productivity, and greater stability for both Delphi and C++Builder developers.