Probably the biggest update ever with many improvements for previous design compromises. But the big thing are fallbacks for virtually every action that could potentially go wrong at some point, such as failed downloads or extraction issues. Installer now include multiple websites as download sources for files (where available), a fallback mechanism for depot downloads and user options for how to proceed. Retry, manual intervention with guidance, or skipping the step entirely. Installers should practically never abort if a step fails and this is implemented for all of them.