Time of Release
Historically, Test and General Availability releases happen at 10:00am Eastern US Time, which is either 1500UTC or 1400UTC depending on daylight savings in the United States. See Releases/Schedule for more information about scheduling methodology and schedule milestone definitions
$ dmesg | grep eth0
eth0: RTL8168d/8111d at 0xfac7a000, 6c:f0:49:xx:xx:xx, XID 083000c0 IRQ 29
r8169: eth0: link down
ADDRCONF(NETDEV_UP): eth0: link is not ready