Every packaged release through 2.6.1 predates the fixes to APNs and FCM described in the upgrade notes — their APNs and FCM support cannot deliver a notification any more, since both services shut down the APIs those releases spoke to. Upgrade to 2.8.0 or newer.
All releases, with their notes and downloadable packages (.deb, .rpm,
.tar.gz), are on
GitHub Releases.
Release notes for each version are also on this site, under Release Notes.
git clone https://github.com/uniqush/uniqush-push.git
cd uniqush-push
go build
See Install for the rest.