Version 4.11.0 of syslog-ng was released last week, and it is already available in @opensuse #Tumbleweed!
#syslog_ng

@opensuse I also updated the @fedora #Rawhide package, and according to the syslog-ng page on #repology, it's already there: https://repology.org/project/syslog-ng/versions

However, Rawhide still had #syslog_ng 4.10.2, when I checked a few minutes ago...

syslog-ng package versions - Repology

List of package versions for project syslog-ng in all repositories