https://www.theregister.co.uk/2018/01/22/linus_4_15_needs_rc_9/ >Linus Torvalds has decided that Linux 4.15 needs a ninth release candidate, making it the first kernel release to need that much work since 2011. >Torvalds flagged the possibility of an extra release candidate last week, with the caveat that “it obviously requires this upcoming week to not come with any huge surprises” after “all the Meltdown and Spectre hoopla” made his job rather more complicated in recent weeks.