anniyan

Generally, the newer images are the updated ones.
Looking at this specific list of files, however, I've noticed that one of them is an ASIA version, and three are ROW versions (Rest Of World).
So depending on where you live, you could pick the Asia version, or the newest ROW version. All images are usually multi language versions. I suspect the choice of language could be different on the Asia image, however, I've not tested that.

No, the Latitude 3590 and the G3 3590 are different.
In all likelihood though, the iso files for the G3 3590 will be identical to the other G3 35xx files, such as the G3 3579.
If you want me to check for G3 3590 files anyway, please send me your service tag, and I'll add the downloads to the list.

Thank you for your help. G3 3590 (and many more models) have been added to the new version. Download is already available.