Am 21.08.2018 um 22:09 schrieb Allin Cottrell:

Gretl datafiles (gdt and gdtb) have for many years contained version information.
Right, very good.

This hasn't been a big deal for the most part, because incompatible changes to the format have been few and far between. In the present case we've upped the gretldata version to 1.4, and the signal for current gretl to expect old-style NAs in a gdtb file is that its version is less than 1.4.
But does old gretl (or any gretl, for that matter) issue a warning if it encounters "future" data file versions?

thanks,
sven