JoniJnm.es

Request is:

Upgrade kide chat component and module without uninstall old version,
because, it's too hard every time add smiles after upgrade and edit css
files and etc.

The smilies are not deleted (only if the table needs changes, but since 1.3 it doesn't need). And for files... I think you should make a backup it before uninstall.

But I will look upgrade method