There has been no roadmap published by the DTA. We sometimes hear through the media that an update may be coming, but we don't know what that update will contain until it is published, and then it is just the brief release notes on the app stores or we compare the decompiled app with the previous version. The only certain item that has been mentioned several times is that they are planning to integrate the Exposure Notification APIs developed by Apple and Google. But there has been no mention or discussion by the DTA on what this integration may involve.
Original Twitter thread
Senate Committee transcript
See Mr. Brugeaud's comments at the top of page 3 about being early adopters of the forthcoming Apple and Google APIs.
"How did the Covidsafe app go from being vital to almost irrelevant?"
Vanessa Teague quoted as saying the adoption of the Exposure Notification APIs would require large changes to the operation of the app, and that it would require people to run both apps (the current app and a separate app using the Exposure Notification APIs) for a few weeks.