The 5.8-rc7 kernel prepatch is out for
testing; Linus is unsure about whether things are slowing down enough or
not. “But it *might* mean that an rc8 is called for. It’s not like rc7 is
*big* big. We’ve had bigger rc7’s. Both 5.3 and 5.5 had bigger rc7’s,
but only 5.3 ended up with an rc8.

Put another way: it could still go either way. We’ll see how this
upcoming week goes.“

Source: LWN.net – Kernel prepatch 5.8-rc7