Z:gnu-www-ja-gpl-howto--e240dd-For software with several rele/en

For software with several releases over multiple years, it's okay to use a range (&ldquo;2008-2010&rdquo;) instead of listing individual years (&ldquo;2008, 2009, 2010&rdquo;) if and only if every year in the range, inclusive, really is a &ldquo;copyrightable&rdquo; year that would be listed individually; and you make an explicit statement in your documentation about this usage.