Has anyone updated the DRTLS application to the latest Gradle version?

For my master’s thesis at the University Of Antwerp, I’m researching how UWB localization can help blind or visual impaired people when horse riding. For this I want to add some features, such as particle filtering, user friendly UI, audio feedback…, to the existing application. The only problem is that the application works with an old version of gradle, which makes it almost impossible to add new stuff to the app. Has anyone updated the app to the latest gradle version? or any other tips?

Thanks in advance!