RAD Studio 12.3 patch available - April 2025

[Roger Cigol 131]

It's called the April patch - but it's out now !

 

https://blogs.embarcadero.com/rad-studio-12-3-april-patch-available/

[Uwe Raabe 2134]

30 minutes ago, Roger Cigol said:

It's called the April patch

Sounds reasonable:

[Anders Melander 1980]

@Uwe Raabe Can you confirm that RSS-3102 (the record constrain thing) is fixed for 64-bit also? The last comment on the issue claims it isn't.

[Lars Fosdal 1850]

It is fixed. It is no longer necessary to remove the record constraint to avoid the non-nullable type error.

Edit: Woops - missed that 64-bit thing... do you mean the 64-bit target, or the 64-bit compiler?

[Anders Melander 1980]

40 minutes ago, Lars Fosdal said:

do you mean the 64-bit target, or the 64-bit compiler?

I think the comment refers to the 64-bit compiler, so that's what I'm asking about. I assume the 64-bit target is okay but since Embarcadero doesn't really provide any useful info (in any of the issues) it's just an assumption.

[Lars Fosdal 1850]

@Anders Melander

I just tried my example code which failed before the April patch in the 64-bit IDE, targeting 64-bit Windows.
It no longer stops compiling.

program NonNullableConstraint;

{$APPTYPE CONSOLE}

{$R *.res}

uses
  System.SysUtils;

type
  TMyClass = class
    function Select<T:Record>(const selector: string):TArray<T>;
  end;

  TNotifcationRow = record
  const
    Query = 'SELECT * FROM v_server_notifications';
  public
    Id: Integer;
    Name: String;
    Data: String;
    ByWho: String;
    CreatedWhen: TDateTime;
    function DataAsId: Integer;
  end;
  TServerNotificationArray = TArray<TNotifcationRow>;

{ TMyClass }

function TMyClass.Select<T>(const selector: string): TArray<T>;
begin

end;

procedure Test;
var
  MyClass: TMyClass;
  Res: TServerNotificationArray;
begin
  MyClass := TMyClass.Create;
  Res := MyClass.Select<TNotifcationRow>('foo'); // <- E2512 Type parameter 'T' must be a non-nullable value type
end;

{ TNotifcationRow }

function TNotifcationRow.DataAsId: Integer;
begin
  Result := 0;
end;

begin
  try
    Test;
  except
    on E: Exception do
      Writeln(E.ClassName, ': ', E.Message);
  end;
end.

 

[Uwe Raabe 2134]

15 minutes ago, Lars Fosdal said:

I just tried my example code which failed before the April patch in the 64-bit IDE, targeting 64-bit Windows.

Try with external MSBuild in the project options and select x64 as preferred architecture. Key is to use the 64-bit compiler versions from the bin64 folder. The target platform is almost irrelevant. Only bcc64x got an update with the April patch.