Just found out that there's two undocumented .NET types in Delphi today.
NativeInt and NativeUInt.
No idea what it's good for yet, but here's an example Delphi for .NET console app showing it's usage.
var I: NativeInt; K: NativeUInt;begin I := Int32.MaxValue; Inc(I); K := Int32.MaxValue; K := K + K + 1; WriteLn('I: ', I); WriteLn('K: ', K);end.
In 2017, with the release of Delphi 10.2 Tokyo, Embarcadero introduced a specialized implementation of the Observer pattern into the System.Classes unit. While it has been in the wild for 9 years, it remains a "hidden" architecture for many, primarily because it serves as the invisible engine behind LiveBindings. Other than live bindings, you can also use the Observer pattern as a way to update component settings to the Windows registry, an .ini file, or persist it elsewhere.
System.Classes