The latest release of rizinorg/cutter is v2.5.0. It is a free and open-source reverse engineering platform powered by the rizin engine, performing disassembly and binary analysis through a visual interface. Reverse engineering means taking apart a finished binary to trace back how it works internally.
The README describes Cutter as a customizable platform built with user experience in mind, created by reverse engineers. A reverse engineer means a practitioner who analyzes binary behavior. It ships release binaries for Linux, macOS and Windows, and supports Python plugins as well as native C++ plugins. The primary language is C++ and the license is GPL-3.0. It has 20067 GitHub stars and the repository was created on 2017-09-25. What sets this platform apart is the path it provides for driving the rizin engine through a GUI.
However, the collected information contains no changelog for v2.5.0, so there is no way to know what this release actually changed. No performance figures or benchmarks are given either. In the 10-point evaluation the momentum score tops out at 3.4, while the freshness, technology and quality items are blank, so there is too little basis to gauge technical completeness. A blank item means there is no evaluation, not that the quality is low. The GPL-3.0 license terms and actual analysis performance cannot be confirmed from this information alone. Until the changelog is confirmed, it is too early to judge what this release improved.