Thanks for the clarifications.
It’s good that the kernel was revisited and integrity/security weaknesses were addressed. Unfortunate about the Meltdown Attack as it is impacting all commercial, community, and hobby operating systems alike.
It appears that progress is in a one-step-forward/two-steps-backward mode which is very common when a project is approaching a milestone. It will get there although the last blocking issues may take more efforts to fix than currently anticipated.