Vintage Software Copyright

Paul Koning paulkoning at
Fri Aug 21 19:00:59 CDT 2015

> On Aug 21, 2015, at 7:06 PM, Geoff Oltmans <oltmansg at> wrote:
> On Aug 21, 2015, at 5:40 PM, Fred Cisin wrote:
>> If it were changes in the law, then it would NOT be retroactive unless explicitly declaring itself to be.
> Different places are different, but the US constitution explicity prohibits ex post facto laws.

So it does, and that restriction is obeyed just as little as most other Constitutional prohibitions.


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