Delphi 2021.10b !!top!! -
Delphi 2021.10b — Overview and Analysis
Delphi 2021.10b is a minor-update release in Embarcadero’s modern Delphi product line, part of the RAD Studio family of tools for native Windows, macOS, iOS, Android and Linux development using the Object Pascal language. While not a major milestone like a full-version release, a point-release such as 2021.10b typically bundles bug fixes, platform-specific improvements, updated IDE components, and small feature refinements that help stabilize the development experience and address issues reported by users since the prior update. This essay examines Delphi 2021.10b’s context, likely content, technical significance, developer impact, and the broader role of incremental updates in the lifecycle of a commercial IDE.
The 2021.10b combination became a de facto stable baseline for many teams. It represented Delphi 10.4 Sydney fully matured—after the initial rush of Update 1 (August 2020) and the more substantial Update 2 (December 2020), plus subsequent quality-of-life fixes. delphi 2021.10b
- Enhanced Support for Windows 11: Delphi 2021.10B provides improved support for Windows 11, including new UI controls and enhancements to the TForm and TFrame classes.
- Improved Performance: The new version includes several performance optimizations, including faster compilation times and improved memory management.
- New FMX Controls: Delphi 2021.10B introduces several new FireMonkey (FMX) controls, including a new TCalendar control, TGauge control, and TRating control.
- Enhanced Mobile Support: The update includes improved support for mobile app development, including enhancements to the TCamera and TMediaPlayer components.
- Updated IDE: The IDE has been updated with several new features, including a revamped Code Editor, improved Project Manager, and enhanced debugging tools.
- High-DPI IDE improvements (finally!)
- Better VCL and FMX styling
- Enhanced code insight and editor performance
- Support for Windows 11 and ARM64 (Linux, later)
3.4. VCL (Visual Component Library)
- TVirtualStringTree integrated into the VCL (explicitly for the IDE’s own use but usable by developers).
- TControlList – a tile-based control similar to modern file explorers.
- VCL Styles – better handling of dark themes without UI glitches.
- Edge WebView2 support for embedding Chromium-based browsers in Win32 apps.
- Faster Compilation Times: The new version includes several optimizations that result in faster compilation times, making it possible to quickly build and test applications.
- Improved Memory Management: Delphi 2021.10B includes enhancements to the memory management system, reducing the risk of memory leaks and improving overall application stability.
- Bug Fixes: The update includes several bug fixes that address issues reported by users, ensuring a more stable and reliable development experience.
Community Reaction
On forums like Enth & Delphi-PRAXiS, developers appreciated 2021.10b for fixing the most annoying launch bugs, but some grumbled that basic LSP issues (e.g., Find References missing results) persisted. Others praised the high-DPI fixes — a long-awaited quality-of-life improvement. Delphi 2021
Delphi 2021.10B is a significant update that includes several new features and improvements. Some of the key highlights include: Enhanced Support for Windows 11 : Delphi 2021
VCL and FMX updates: