v7r5 writing sftp get files different ccsid

After V7R5 upgrade, existing sftp get files written as ccsid 1208, where in
prior release v7r3 was 819. Partner has not changed their files, so must be
a setting or new default in 7.4 or 7.5. If in memo to users i missed it.

Is there a global setting i can change without having to update many
programs (most written 2 decades ago) . They are failing to open the
imported files.
I did a chgatr to set 819 ccsid on a single import file and existing
process works.

thanks
Jim Franz