In Delphi 7, you a record was nothing more than a collection of data grouped into one location. In the last few versions, you've been able to add public and private members, methods, properties and constructors to them, treating them a lot more like objects. What version was this extended syntax introduced in?
EDIT: In case anyone wonders why I'm asking, I'm trying to set up something that would be simplified quite a bit by using the extended syntax, but I want to make it backwards-compatible with older versions of Delphi, so I need to know which IFDEFs to use.
I'm pretty sure records with methods were introduced in Delphi 2006.
I suggest you to take a look at JCL library. It contains a very useful jedi.inc file, where you can find all kind of definitions for features, specifically there is:
SUPPORTS_ENHANCED_RECORDS Compiler supports class [operator|function|procedure] for record types (D9.NET, D10+)
So, records with methods were introduced in Delphi 2005 (.NET) and Delphi 2006 (Win32)
来源：https://stackoverflow.com/questions/830168/when-were-extended-records-introduced