IBM provides SHA256 checksums on the download page. On Windows PowerShell:
Before diving into the download links, understand why IBM has made ACS the preferred client since IBM i 7.1. downloads for ibm i access client solutions
Official downloads are hosted by IBM and typically require an active software maintenance contract. IBM provides SHA256 checksums on the download page
IBM i Access Client Solutions is the next-generation middleware for the IBM i family. It replaces older products such as IBM i Access for Windows (formerly Client Access) and IBM i Access for Web. Unlike the old monolithic installations of the past, ACS is a platform-independent, Java-based client. This architecture allows it to run seamlessly on Windows, Linux, and macOS. IBM i Access Client Solutions is the next-generation
Before diving into the download logistics, it is vital to understand exactly what this software is and why it has replaced its predecessors.