Just upgraded from 10.12.6 to 10.13.3. Everything seemed to go smoothly... except I see I have no Recovery Partition any more - holding down Option at startup just gets me my macOS and BootCamp boot options. Here is the results of
~>mount /dev/disk1s1 on / (apfs, local, journaled) devfs on /dev (devfs, local, nobrowse) /dev/disk1s4 on /private/var/vm (apfs, local, noexec, journaled, noatime, nobrowse) /dev/disk0s3 on /Volumes/Bootcamp (ntfs, local, read-only, noowners) map -hosts on /net (autofs, nosuid, automounted, nobrowse) map auto_home on /home (autofs, automounted, nobrowse)
So is no Recovery Partition expected with 10.13?