As of Unity 2021.1 (tech stream release) Unity has added support for Apple silicon M1 chipsets. While Unity 2021 versions are not officially supported yet by ARDK, we realize that Mac M1 users may prefer to use Unity 2021 as this version removes the need for applying the M1 workaround patch described here. We do not know of any major ARDK//Unity 2021 compatibility issues at this time, but 2021 remains unsupported (officially) until we have further tested this version. We recommend using the officially supported 2020.3 LTS in most cases, but for M1 users using Unity 2021 may be preferred. We will update this forum if we hear of complications regarding Unity 2021, and as we progress on its official support.