crush depth

Breaking compatibility in a patch release

Broke a pure-ftpd install this morning by recklessly failing to read the change log before upgrading. Missed this note for 1.0.44:

The Perl and Python wrappers are gone. The daemon can now use a configuration file without requiring external dependencies.

This meant that the s6 run script had to be updated:

exec /usr/local/sbin/ /ftpd/pure-ftpd.conf 2>&1


exec /usr/local/sbin/pure-ftpd /ftpd/pure-ftpd.conf 2>&1

The documentation was not updated. I had to work out how to get the server to consume the configuration file by guessing, and had to trace the executable with ktrace to make sure that it actually was reading the file.

I tend to forget that not all projects use semantic versioning and what I expected to be a simple bug-fix update from 1.0.43 to 1.0.45 turned out to be a service-disrupting change.

If you maintain software and you're reading this, please make your version numbers mean something!