BMW ISTA 4.39.20 (often referred to as ISTA+ or Rheingold) is a dealer-level diagnostic and programming software version released around late 2022 to early 2023. It is designed to handle BMW, MINI, and Rolls-Royce vehicles, specifically bridging the gap for models produced up to roughly 2022. Core Capabilities Comprehensive Diagnostics
We are pleased to announce the availability of the latest iteration of the BMW Integrated Service Technical Application (ISTA). Version brings updated vehicle coverage, bug fixes, and the latest I-Step (Integration Level) data. Bmw Ista- 4.39.20