Hi Guix, Over on IRC justkdng reported that nss was out of date: we have 3.72 and latest is 3.78. Well, there are sources for 3.79 but Mozilla says 3.78 is latest: https://firefox-source-docs.mozilla.org/security/nss/releases/index.html#mozilla-projects-nss-releases (and 3.79 failed to build for me...). Part of the reason may be that guix refresh doesn't pick up a new version and says 3.72 is the latest. I did not investigate, but just noting it. Attached is a patch to update nss and nss-certs to 3.78. I tested that they build on x86_64, including tests. Since $ guix refresh nss -l Building the following 737 packages would ensure 1820 dependent packages are rebuilt... I would guess this goes into either staging or core-updates, whatever will be merged next? John