Are you referring to inbox? Or the Gmail app redesign?
All the Android and Web apps are being updated at the moment for Material Design, with the higher priority being on the Android ones it seems to get them ready in time for the imminent 5.0 launch. They're just updating the app for everyone (the new ones are backwards compatible with less flashy animations). Inbox is a separate app though.
All the Android and Web apps are being updated at the moment for Material Design, with the higher priority being on the Android ones it seems to get them ready in time for the imminent 5.0 launch. They're just updating the app for everyone (the new ones are backwards compatible with less flashy animations). Inbox is a separate app though.