Linus Torvalds this weekend announced Linux 4.9, which offers a number of significant upgrades to the kernel. “I’m pretty sure this is the biggest release we’ve ever had, at least in terms of commits,” Torvalds wrote. “If you look at the number of lines changed, we’ve had bigger releases in the past but they’ve tended to be due to specific issues.” A chunk of the upgrade is the new greybus staging support, and other than size, the release looks fairly normal, he noted. Staging, GPU and networking are the bulk of the drivers.