Changelog can be found at https://github.com/nzbget/nzbget/releases/tag/v21.0
Thanks to sthen@ for pointing out that it is worth adding "@extraunexec rm .." lines to remove files in localstatedir for pkg_delete -c to clean up. OK sthen@
information given in nzb-files. kn@ was so kind to help with this port. Thank you! OK kn@, jca@