I think it's worth adding that the version of the underlying FPC compiler etc. which are shown there relate to what were used to build the IDE.
To see what the IDE will currently use to build a project, see Tools -> Options -> Environment -> Files etc.
And in light of another thread which is currently winding down, it's worth adding that the compiler being used to build a project, together with the name of the target CPU and API, are available as predefineds accessible to {$ifdef etc. But there are some details of the eventual target, e.g. the precise CPU model and the Windows version number or Linux distro name, which can only be worked out at runtime.
MarkMLl