I have released version v0.0.2 of Date::Calendar::CopticEthiopic.
This new version includes a bug fix: the 'day-of-year' attribute in version v0.0.1 was giving a wrong result in some cases, for dates around a change of year. Also, a new test file to improve code coverage. Yet, there is a glitch in the archive file on CPAN6: the "Changes" file is incomplete. Its update was not yet committed when I built the archive, so you do not get the proper content. Thank you for your attention, Jean Forget JFORGET at cpan dot org