| From: | cen <cen(dot)is(dot)imba(at)gmail(dot)com> |
|---|---|
| To: | pgsql-general(at)lists(dot)postgresql(dot)org |
| Subject: | Re: Copyright vs Licence |
| Date: | 2021-05-10 11:44:36 |
| Message-ID: | 7ba65a87-825e-9667-b1a9-c23fec5692e4@gmail.com |
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| Thread: | |
| Lists: | pgsql-general |
> If MSFT is the sole holder of the copyright, then they can relicense
> it as they see fit. *I think* that they can only change the license on
> *newer* versions, so you'd be able to keep using the latest OSS version.
That is correct. If I get a version 1 of your program under license A
you can't come back a year later and tell me the same code is now
licensed under B and hinder the original freedoms of the license.
What can and does happen is that a new version is released under a
different license while the old version is made obsolete. In real word
that means you are stuck with the old version so you either need to
upgrade to a newer version with different license or use something else.
Real world cases are MongoDB and Redis modules license change.
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