Pitfall 1: Existing projects using WinAPI.Windows may throw E2003 Undeclared identifier: 'RT_RCDATA'.
Pitfall 2: The new LSP disables some third-party experts (like GExperts or CnWizards).
Pitfall 3: Android 64-bit debugging on older devices.
What makes 2021.10b “mega” is not any single feature but the accumulation of trust. Delphi remains one of the few environments where you can double-click a button, write ShowMessage('Hello'), and produce a native Windows executable smaller than a JPEG image. No runtime, no VM, no container. Just metal and machine code.
In an era of Electron apps consuming 200MB of RAM for a to-do list, Delphi’s ethos feels almost radical. 2021.10b refines this radicalism. The new memory manager reduces fragmentation in long-running server applications. The RTL (Run-Time Library) adds helpers for JSON parsing that don’t make you miss Python. The FireMonkey (FMX) framework finally renders complex vector animations without dropping frames on Linux.
But the true depth lies in what didn’t change: backward compatibility. Code written for Delphi 7 in 2002 often compiles without change in 2021.10b. That is not laziness; it is reverence for the developer’s time.
Why it matters: Developer productivity gains compound daily; small improvements in tool responsiveness and correctness yield large time savings.
Why it matters: Keeping toolchains current reduces friction when targeting new OS releases and enables use of modern platform APIs.
The most immediate difference is compile time. For large projects (500k+ lines of code), builds that took 2 minutes now complete in just over 70 seconds. The incremental linking has been re-engineered, meaning less waiting and more coding.
Software versions often lie. A major number jump promises the world but delivers bug fixes. But here, the “b” stands for honesty. It acknowledges that 10.4 Sydney (released mid-2020) was a foundation, and 2021.10b is the superstructure. Embarcadero, Delphi’s steward, has learned that developers don’t need fireworks — they need reliability. They need the IDE not to crash when opening a form with 200 components. They need the debugger to inspect a generic list without falling into a black hole.
“Mega Better” means:
These are not glamorous bullet points. They are the stitches that hold a professional’s day together.
What makes 2021.10b “mega” is not any single feature but the accumulation of trust. Delphi remains one of the few environments where you can double-click a button, write ShowMessage('Hello'), and produce a native Windows executable smaller than a JPEG image. No runtime, no VM, no container. Just metal and machine code.
In an era of Electron apps consuming 200MB of RAM for a to-do list, Delphi’s ethos feels almost radical. 2021.10b refines this radicalism. The new memory manager reduces fragmentation in long-running server applications. The RTL (Run-Time Library) adds helpers for JSON parsing that don’t make you miss Python. The FireMonkey (FMX) framework finally renders complex vector animations without dropping frames on Linux.
But the true depth lies in what didn’t change: backward compatibility. Code written for Delphi 7 in 2002 often compiles without change in 2021.10b. That is not laziness; it is reverence for the developer’s time. Even a "Mega Better" release has edge cases
Why it matters: Developer productivity gains compound daily; small improvements in tool responsiveness and correctness yield large time savings.
Why it matters: Keeping toolchains current reduces friction when targeting new OS releases and enables use of modern platform APIs.
The most immediate difference is compile time. For large projects (500k+ lines of code), builds that took 2 minutes now complete in just over 70 seconds. The incremental linking has been re-engineered, meaning less waiting and more coding. Pitfall 2: The new LSP disables some third-party
Software versions often lie. A major number jump promises the world but delivers bug fixes. But here, the “b” stands for honesty. It acknowledges that 10.4 Sydney (released mid-2020) was a foundation, and 2021.10b is the superstructure. Embarcadero, Delphi’s steward, has learned that developers don’t need fireworks — they need reliability. They need the IDE not to crash when opening a form with 200 components. They need the debugger to inspect a generic list without falling into a black hole.
“Mega Better” means:
These are not glamorous bullet points. They are the stitches that hold a professional’s day together.
