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RAD Studio 10.4 delivers significantly enhanced high-performance native Windows support, increased productivity with blazing fast code completion, faster code with managed records and enhanced parallel tasks on modern multi-core CPUs, over 1000 quality and performance enhancements, and much much more.

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We are pleased to announce that RAD Studio 10.4 Sydney is now available. This release adds significant new and enhanced Windows capabilities throughout the product in addition to major productivity and performance enhancements across supported platforms. Delphi 10.4, C++Builder 10.4 and RAD Studio 10.4 are available to download by any active Update Subscription customer.

This new release also includes key fixes and notable enhancements. To learn more about 10.4, EMB_TEXT_CLICK_HERE.

Calypso


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  • Significant Windows Enhancements. Deliver visually stunning apps with crisp high DPI UI elements on 4k monitors with new flexible styling support for visual controls. Integrate secure modern web technologies through Microsoft’s new WebView2 based on Chromium. Build modern enhanced title bars similar to Office, Explorer, Google Chrome, and others. Significant stability improvements with a new debugger for C++ Windows 64-bit.
  • Increased Productivity. Increase productivity through blazing fast code completion in the IDE. Better compatibility with existing code and simpler coding through unified memory management. Rapidly bind data with Visual LiveBindings’ enhanced architecture and improved performance. Get easy access to popular C++ libraries like ZeroMQ, SDL2, SOCI, libSIMDpp, and Nematode. Expanded Amazon AWS cloud support.
  • Performance & Quality Enhancements. Over 1,000 quality and performance improvements. Achieve better code efficiency through new custom managed records. Run code faster with enhanced parallel tasks on modern multi-core CPUs. Experience better screen rendering performance on macOS and iOS with Metal API support. Better compatibility with existing code and simpler coding through unified memory management.


RAD Studio 10.4 Devices

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  • Windows VCL Style Changes for High DPI. The VCL Styles architecture has been significantly extended to support High DPI and 4K monitors. VCL controls are now automatically scaled for the proper resolution of the host monitor. The style API for Windows has also been fully revised to support high DPI styles. Each UI element can be scaled to any DPI, resulting in crisp UI elements on all monitors.
  • New High DPI Windows Styles. A large number of our built-in and premium VCL styles for Windows now support the new High-DPI style mode giving you visually stunning app on any monitor.
  • Windows VCL Per Control Styling. New enhanced flexibility allows VCL developers to now use multiple VCL styles on different controls and in different forms within a single Windows application. They can also be combined with third-party unstyled controls within a styled VCL app.
High DPI TV

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  • New VCL Component: Edge Browser Control. TEdgeBrowser gives you access to Microsoft’s new Edge WebView2 based on Chromium. This offers a much more modern secure HTML engine. The classic TWebBrowser component now dynamically uses the existing Internet Explorer or new Edge browsers as needed.
  • New VCL Component: TTitleBarPanel and Custom Title Bars. The new TTitleBarPanel control and TForm.CustomTitleBar property allow you to customize a VCL form’s native Windows title bar with standard VCL controls. Quickly build modern enhanced title bars, similar to Office, Explorer, Google Chrome, or other applications.
  • New VCL Component: Image Component with Multi-Resolution Support. A new TVirtualImage component supports multiple resolutions and DPI scaling, allowing you to use high-quality image scaling and display for crisp clear images.
  • Windows API Updates: We enhanced many API declarations and added additional ones improving the great platform integration.


Virtual Image - Windows

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  • Metal Driver GPU Support for macOS and iOS: FireMonkey Metal API support offers a smooth migration to future requirements and better native performance for screen rendering. The Delphi macOS platform offers Metal API support while Metal API on iOS is available in both Delphi and C++Builder.
  • Storyboard Launch Screen. Integrated support for Apple’s new launch screen storyboard requirement.
  • Built-In FMXLinux. Enterprise and Architect Edition customers will enjoy the full integration of FMXLinux within the IDE for building Linux GUI applications using GTK+.
  • Upgraded Native Controls. The TWebBrowser control for iOS is now implemented using the WKWebView API. The macOS implementation of Media Player control now used AVFoundation. New FMX implementation for the styled TMemo component on the Windows platform, offering better support for IME and additional enhancements.


Apple Metal API

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  • Enhanced Parallel Programming Library Support: Numerous performance and stability enhancements have been made to our The Parallel Programming Library (PPL) library. It gives your applications the ability to have tasks running in parallel in modern multi-core CPUs.
  • FireDAC Database Access Enhanced. Plus updated drivers for FireBird, PostgreSQL and SQLite. The SQLite embedded database support can now be statically or dynamically linked.
  • Expanded Cloud Support. Our HTTP and REST Client libraries are upgraded with additional HTTPS features and also support for Amazon AWS services has been expanded.
  • LiveBindings Performance Enhanced. Many enhancements including performance have been made to the Visual LiveBindings architecture and implementation for both VCL and FireMonkey applications. Some of the LiveBindings operations are an order of magnitude faster.


Live Bindings Devices

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Improved code completion for Object Pascal, new custom managed records, unified memory management, RTL speed improvements, toolchain performance and quality improvements, and more.

  • Major Delphi Code Insight Improvements. Upgraded code tooling provides Code Insight using a Delphi implementation of the Language Server Protocol (LSP). LSP provides FAST code completion, navigation or similar in a separate process. This means that the IDE will never block while completing and Code Insight will provide accurate results. The new Code Insight provides a much enhanced developer productivity experience when working with large projects with millions of lines of code.
  • New Language Feature for Delphi: Custom Managed Records. A key language addition to the Delphi language, the Delphi record type now supports custom initialization, finalization, and copy operations. Customize how records get created, copied, and destroyed, by writing the code to be executed at the various steps. This adds additional power to records in Delphi, a construct used to achieve better efficiency compared to classes.
  • Unified Memory Management. Delphi memory management is now unified across all supported platforms – mobile, desktop and server – using the classic implementation of object memory management. This offers better compatibility with existing code and simpler coding for components, libraries and end user applications.


LSP Devices

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Expanded C++ libraries support, a new debugger for Windows 64-bit, toolchain performance and quality improvements, and more.

  • Expanded C++ libraries support. New optimized support for popular C++ libraries including ZeroMQ, SDL2, SOCI, libSIMDpp, and Nematode, as well as others already supported such as Boost and Eigen, available for download through the GetIt Package Manager.
  • Win 64-Debugging and Linker for C++. A new debugger for Windows 64-bit for C++ is available. This LLDB based debugger offers significant stability improvements, a more feature rich debugging experience, and much more powerful inspection and evaluation at debug-time.
  • Toolchain performance and quality improvements. A large number of STL improvements from Dinkumware is included. Several key RTL methods and areas have been improved. Several improvements to CMake support. And a large number of quality and stability improvements
  • Unified Memory Management. For C++, this change means that the creation and deletion of Delphi-style classes in C++ follows normal memory management just like any heap-allocated C++ class, significantly reducing complexity.


Win64 Devices

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  • GetIt Package Manager Enhancements. The GetIt Package Manager in the IDE includes significant enhancements. It displays release dates for each package with the ability to sort them by release date; new filtering options for installed packages, exclusive content available for update subscription customers, packages for which updates are available; and more.
  • Unified Installer for Online & Offline installations. A new unified installer is available using our GetIt installer technology. It provides a single installer that supports both online and offline installations (via an ISO).
  • Faster Coding. The code editor has several productivity improvements, including new settings such as file codepage and font size on the editor status bar.
  • Upgraded Interface. The IDE and key dialogs use the new TCustomTitleBar control to implement search and settings on the title bar, enabling native look and feel and Windows DWM behaviour.


Installer GetIt

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The largest and best improvement to Delphi’s code tooling in many years, 10.4 provides Code Insight using a Delphi implementation of the Language Server Protocol (LSP). LSP is a technique for calculating results for code completion, navigation or similar in a separate process. This means that the IDE will never block while completing and Code Insight will provide accurate results. 10.4 provides a much enhanced developer productivity experience when working with large projects with millions of lines of code.




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A key language addition to the Delphi language, the Delphi record type now supports custom initialization, finalization, and copy operations. Developers now have the ability to customize how records get created, copied, and destroyed, by writing the code to be executed at the various steps.

This adds additional power to records in Delphi, a construct used to achieve better efficiency compared to classes.

Code Editor Coutout


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Delphi memory management is now unified across all supported platforms – mobile, desktop and server – using the classic implementation of object memory management. Compared to Automatic Reference Counting (ARC), this offers better compatibility with existing code and simpler coding for components, libraries and end user applications. The ARC model remains for string management and interface type references for all platforms. For C++, this change means that the creation and deletion of Delphi-style classes in C++ follows normal memory management just like any heap-allocated C++ class, significantly reducing complexity.




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In 10.4, we’ve ported numerous popular C++ libraries to C++Builder, providing optimized support for use within C++Builder.

This includes libraries such as ZeroMQ, SDL2, SOCI, libSIMDpp, and Nematode, as well as others already supported such as Eigen, available for download through the GetIt Package Manager.

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10.4 introduces a new debugger for Windows 64-bit for C++. Based on LLDB, this debugger introduces significant stability improvements when debugging 64-bit applications, as well as a key new feature assisting evaluating and inspecting types like C++ and Delphi strings plus STL collections including std::vector and std::map, and more. In addition, the debug information generated for an app uses a different debug format. The end result is a more stable, featureful debugging experience, and much more powerful inspection and evaluation at debug-time.



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  • A large number of STL improvements from Dinkumware
  • Several key RTL methods and areas improved, based on work done to improve compatibility with common C++ libraries
  • Several improvements to CMake support
  • A large number of quality and stability improvements
  • Windows API Updates – We enhanced many API declarations and added additional ones, to further improve the powerful Windows platform integration.
  • General enhancements to the FireDAC database access library and also updated the drivers for FireBird, PostgreSQL and SQLite. Choose SQLite static or dynamic linking.
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10.4 C++Builder


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In 10.4, the VCL Styles architecture has been significantly extended to support High DPI and 4K monitors. All UI controls on the VCL form are now automatically scaled for the proper resolution of the monitor the form is displayed on. The style API has been fully revised to support high DPI styles.

Each UI element can be selected from a library of multi-scale versions and scaled to any DPI, resulting in crisp UI elements on all monitors.



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We have updated a large number of our built-in and premium VCL styles to provide support for the new High-DPI style mode, letting you design visually stunning applications for any monitor.

VCL developers can now use multiple VCL styles in different forms within a single application or even different visual controls that are on the same form. This also includes support for styling any element using the default platform theme. Beside allowing more flexibility in styling, this also enables you to use third-party unstyled controls within a styled VCL application.

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  • Added support for the Metal API on macOS and iOS
  • In addition to supporting the latest iOS SDK, developers using RAD Studio 10.4 can also address Apple’s new launch screen storyboard requirement through built-in IDE support.
  • This release includes a new FMX implementation for the styled TMemo component on the Windows platform, offering better support for IME and additional enhancements.
  • Enterprise and Architect Edition customers can take advantage of FMXLinux integration for building Linux GUI applications.
  • The TWebBrowser control for iOS is now implemented using the WKWebView API
  • The macOS implementation of Media Player control now used AVFoundation




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The GetIt Package Manager in the IDE includes significant enhancements in 10.4.

This includes displaying release dates for each package with the ability to sort them by release date; new filtering options for installed packages, exclusive content available for update subscription customers, packages for which updates are available; and more.

GetIt Devices


Installer Devices

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In 10.4, we’re introducing a unified installer using our GetIt installer technology. This provides a single installer that supports both online (internet connected) installations and offline installations (via an ISO).

Now both online and offline installations allow you to select an initial set of RAD Studio features to install, such as support for specific combinations of programming languages and target platforms, language support, or help resources, and add or remove them at any time.