The Dimecoin team released the updated version of the Windows wallet last night (https://www.dimecoin.com.co/wallet/)

They are currently working on the Mac OSX, and they are almost at the beta-testing stage for the Linux wallet.

If you'd like to get notified about announcements for upcoming released and new partnerships etc. make sure you subscribe to Dimecoin's mailing list here: https://www.dimecoin.com.co/subscribe