I understand that updating software can be challenging and often frustrating, especially if you have invested a lot of money in it. The internet and web services are no different - try accessing the current version of the internet on a computer from 2002 and see how different and broken everything will look. It is possible that SketchUp 2021 will continue to function for a long time, but nobody can predict how changes in other software or hardware may affect it. Please note that “not supported” does not mean “not working”.
They also cannot guarantee that SketchUp 2021 will work with 3D Warehouse, as they only support the versions that are compatible with it (currently 2021, 20). For example, SketchUp 2021 will stop receiving support in January 2024, and they will not be able to help you with any issues that may arise with this version. This policy has been in place for several years and it applies to all aspects of support, including updates, technical assistance and documentation.
SketchUp has a “current minus two” version policy, which means that they only support the latest version and the two previous ones.
