Kernel release status
The current development kernel is 5.0-rc1, released on January 6. Linus said:
"
The numbering change is not indicative of anything special. If you want to have an official reason, it's that I ran out of fingers and toes to count on, so 4.21 became 5.0."
Stable updates:
4.20.1,
4.19.14,
4.14.92, and
4.9.149
were released on January 9.