On July 16, 2019, Acronis has released a new version of Acronis Software-Defined Infrastructure. The product has been renamed into Acronis Cyber Infrastructure. The product version to this point was 3.0. Current version is 4.6.
You can find release notes for the latest version of Acronis Cyber Infrastructure and earlier versions here.
You can find documentation for the latest version here.
Prerequisites for upgrade from Acronis Software-Defined Infrastructure 2.5 to Acronis Cyber Infrastructure are available here.