I submitted my font (Nonchalance) in light version in november 2015 and I noticed it was enjoyed so I made a medium and a bold version.

I'd like to put the whole family together but I don't know how to do. Do I have to "Submit a font" again with the three weights in the same zip file ?

Thank you a lot !

When logged in, you'll find a My Account link in the head of the page next to your user name (Top Left). Click thru that and it takes you to a page displaying a list of your font/s. Next to the font name is an update link. Click that and you can upload a new zip with the tree weights and update the description etc.
'K?
Pil

Thank you !

I wanted a way to tell to Dafont I'd like that the bold version to be on the results page instead of the regular weight...

But, well, it's not that important. ^^

"Note of the author" on the Update page was especially made for that kind of request.

Not for that kind of requests, no, at least not "especially" made for that!

Je ferai sans, c'est pas si grave que ça, mais merci quand même !

Quoi ?... Mais justement Fred l'a fait http://www.dafont.com/fr/colorbean.d6277 (F5 pour rafraîchir la page)

J'avais pas vu ! C'est super, merci beaucoup !

Mon message était en fait destiné à Daaams. Le champ "Note of the author" n'est juste pas là pour passer un message au webmaster, d'où mon message En ce qui concerne l'affichage d'une variante ou d'une autre, ça dépend de l'esthétique générale et du rendu.