AVEVA System Platform 2020 R2 SP1 provides enhanced SCADA/HMI capabilities, including improved TLS 1.2 security, warm failover for AppEngines, and native OPC UA support. As part of a multi-part archive, part4.rar must be extracted alongside all other segments to successfully install the 64-bit platform on Windows Server 2019 or newer. For full documentation, visit the AVEVA Documentation Portal . AVEVA™ System Platform 2020 R2 SP1 Patch 01 ReadMe