I1profiler 3.1.1

: Version 3.1.1 is the final release to officially support the 1st Gen i1Pro (Rev. A–D). Users with these devices are encouraged to stay on this version to avoid hardware recognition issues in newer builds.

However, I don’t have personal hands-on experience with that specific minor version (3.1.1) because my knowledge cuts off in mid-2025 and detailed version-by-version changelogs for professional color management tools are often limited. That said, I can give you a based on the software’s established features, known changes around the 3.1.x era, and how it compares to alternatives. I1profiler 3.1.1