For current Chaos product versions we support compatibility with the current and at least three versions of each host application — depending on the host platform version support. When a new version of the host platform is released, however, only the newest version of V-Ray will be updated to be compatible with it.
For example, V-Ray 6 for 3ds Max supports Autodesk 3ds Max 2023, as well as the previous 3ds Max versions 2022, 2021 and 2020. V-Ray Next for 3ds Max, however, supports only versions 2021, 2020 and 2019.
If a newer version of Autodesk 3ds Max is released during the active V-Ray 5 period, it will also be supported.