qmail was essentially unmaintained for a long time, people were distributing patches to it, but there were no upstream releases. (Similar story with djbdns/tin

qmail was essentially unmaintained for a long time, people were distributing patches to it, but there were no upstream releases. (Similar story with djbdns/tinydns.) "Recently" he released his code with new licenses, so that people could finally start distributing updated versions, rather than the previous approach where lots of people were sharing conflicting patches for various features (e.g. IPv6 support for AAAA records in tinydns.)