Delphi compiler version numbers

List Updated 2020 -> http://docwiki.embarcadero.com/RADStudio/Sydney/en/Compiler_Versions

Abother source: https://delphidabbler.com/notes/version-numbers

{$IFDEF VER80} ShowMessage('Delphi 1');{$ENDIF}
{$IFDEF VER90} ShowMessage('Delphi 2');{$ENDIF}
{$IFDEF VER100} ShowMessage('Delphi 3');{$ENDIF}
{$IFDEF VER120} ShowMessage('Delphi 4');{$ENDIF}
{$IFDEF VER130} ShowMessage('Delphi 5');{$ENDIF}
{$IFDEF VER140} ShowMessage('Delphi 6');{$ENDIF}
{$IFDEF VER150} ShowMessage('Delphi 7');{$ENDIF}
{$IFDEF VER160} ShowMessage('Delphi 8');{$ENDIF}
{$IFDEF VER170} ShowMessage('Delphi 2005');{$ENDIF}
{$IFDEF VER180} ShowMessage('Delphi 2006');{$ENDIF}
{$IFDEF VER185} ShowMessage('Delphi 2007');{$ENDIF}
{$IFDEF VER200} ShowMessage('Delphi 2009');{$ENDIF}
{$IFDEF VER210} ShowMessage('Delphi 2010');{$ENDIF}
{$IFDEF VER220} ShowMessage('Delphi XE');{$ENDIF}
{$IFDEF VER230} ShowMessage('Delphi XE2');{$ENDIF}
{$IFDEF VER240} ShowMessage('Delphi XE3');{$ENDIF}
{$IFDEF VER250} ShowMessage('Delphi XE4');{$ENDIF}
{$IFDEF VER260} ShowMessage('Delphi XE5');{$ENDIF}
{$IFDEF VER270} ShowMessage('Delphi XE6');{$ENDIF}
{$IFDEF VER280} ShowMessage('Delphi XE7');{$ENDIF}
{$IFDEF VER290} ShowMessage('Delphi XE8');{$ENDIF}
{$IFDEF VER300} ShowMessage('Delphi 10 Seattle');{$ENDIF}
{$IFDEF VER310} ShowMessage('Delphi 10.1 Berlin');{$ENDIF}
{$IFDEF VER320} ShowMessage('Delphi 10.2 Tokyo');{$ENDIF}
{$IFDEF VER330} ShowMessage('Delphi 10.3 Rio');{$ENDIF}
{$IFDEF VER340} ShowMessage('Delphi 10.4 Sydney');{$ENDIF}

{$IFDEF VER350} ShowMessage('Delphi 11 Alexandria');{$ENDIF}

{$IFDEF VER360} ShowMessage('Delphi 12 Yukon');{$ENDIF}

if CompilerVersion = 20 then sCompilerName := 'Delphi 2009';
 
or in conditional compiler expressions:

{$if CompilerVersion > 18} // Delphi 2007 or later {$ifend}
 
Compiler        CompilerVersion  Defined Symbol   Used BPL
Delphi 12 Yukon                   36                 VER360             29

Delphi 11 Alexandria 35   VER350                28

Delphi 10.4 Sydney 34   VER340                27
Delphi 10.3 Rio         33   VER330                26
Delphi 10.2 Tokyo 32   VER320                25
Delphi 10.1 Berlin 31   VER310                24
Delphi 10 Seattle 30   VER300                23
Delphi XE8  29   VER290                22
Delphi XE7  28   VER280                21
Delphi XE6  27   VER270                20
Delphi XE5  26   VER260                19
Delphi XE4  25   VER250                18
Delphi XE3  24   VER240                17
Delphi XE2  23   VER230                16
Delphi XE         22   VER220                15
Delphi 2010          21   VER210                14
Delphi 2009  20   VER200                13
Delphi 2007 .NET  19   VER190                12
Delphi 2007          18.5     VER185                12
Delphi 2006          18   VER180
Delphi 2005          17   VER170
Delphi 8 .NET           16   VER160
Delphi 7   15   VER150
Delphi 6   14   VER140
Delphi 5   13   VER130
Delphi 4   12   VER120
Delphi 3   10   VER100
Delphi 2          9   VER90
Delphi 1   8   VER80