bcp keepnulls (-k) option

Hello,

Do you know in what version of bcp the option keepnulls (-k) was introduced?

I use bcp version 12.5.1 on sybase 12.5.

I know that this is not a Sybase forum and that this option might not be available at all in Sybase bcp but your answer might stil help me figure out my problem.

Thank you

I believe it was intruduced in sql 7.0...