Unfortunately, we have already discovered a few minor issues, details at https://github.com/numba/numba/issues/6371. We are planning to quickly release a RC2 build next week. After that, we will invite the boarder community to test. As mentioned before in our public meeting, we are switching to a longer RC period so that downstream projects have enough time to help us verify and test for regressions.
RC2 was tagged very recently and the builds are slowly coming out of the farm (there’s often tens of test combinations for each package, it takes a while), once done they’ll be announced here. Most of the conda packages are done already: