16 Sep
2015
16 Sep
'15
10:11 p.m.
Gavin Lambert
It is perfectly valid for the copyright notice to never be updated, even if the file is changed substantially.
It is *not* valid for the original notice to be modified without specific agreement by the original person. It is *not* valid to remove it entirely, as then you do not know that the license grant is valid or who made it. It is *not* valid to specify a non-legal-entity as the copyright holder (so you can't say "lib X contributors").
Would you care to add references to these claims? As far as I can tell this is just your opinion. Gennadiy