By many accounts, the kernel project uses outdated tooling, far behind the
state of the art that Kids Today tend to favor. The kernel’s workflow has
worked well (enough) for years, but there are signs that it may not be
sustainable indefinitely. As a result, there has been an ongoing conversation about
improving the kernel’s workflow, but little has changed so far. The
posting
of a simple tool called get-lore-mbox
is a sign that the rate of change may be about to increase.

Source: LWN.net – [$] Better tools for kernel developers