Run file only in specific update version

I have an update 2.5 that copies to tmp folder an exe, everything it's ok if I update from version 2.4 to 2.5 but if I update from version 2.4 to 2.6 it doesn't copy the exe.

I don't include the exe file in 2.6 version because I just want the change on version 2.5.

Is there a way to do it?

Currently files are only executed with the current version that they're marked. What you're looking for will be an option soon. Right now (with wybuild 2.6.x) the best thing to do is to include it with every version and execute it only if the old version is "X".