(address . bug-guix@gnu.org)
As I write this, https://guix.gnu.org/packages/ is over 6 weeks stale,
but claims to have been updated two days ago, on July 15:
"GNU Guix provides 9,789 packages transparently available as pre-built
binaries. These pages provide a complete list of the packages. Our
continuous integration system shows their current build status
(updated July 15, 2019)."
The same site shows the latest 'linux-libre' package to be 5.1.5:
In fact, 'linux-libre' was updated to 5.1.6 early on June 1st:
Mark