Hi Franco,
Merry Christmas to you!
This is a question for Mike to answer, but I am pretty sure there is no problem updating directly
to the newest firmware version. To be on the safe side, download your settings in a BIN file first.
No need to make incremental updates.
You can look at the feature updates on the web page, but it is for sure worthwhile updating from such
and old version.
73,
Mitch DJ0QN / K7DX