Firstly, let me state that I am not a lawyer.

My opinion is that the year of the first publication should be enough in the Copyright notice, but adding later years does no harm, so feel free to do whatever you want. It is much more important that you comply with any terms the license you're distributing the module under requires, such as keeping a detailed changelog in case of the perl artistic license, etc.

In reply to Re: Copyright notices in modules by ambrus
in thread Copyright notices in modules by syphilis

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