As of this writing, 7,153 non-merge changesets have been pulled into the
mainline Git repository for the 5.10 release — over a period of four days.
This development cycle is clearly off to a strong start. Read on for an
overview of the significant changes merged thus far for the 5.10 kernel
release.

Source: LWN.net – [$] 5.10 Merge window, part 1