Free as in Freedom

0x67: Analysis of Two Backports of GPLv3 Termination Provisions to GPLv2

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Bradley and Karen discuss two additional permissions that can be used

to “backport” the GPLv3

Termination provisions to GPLv2

— the Kernel Enforcement Statement Additional Permission, and the

Red Hat Cooperation Commitment. A blog post on Conservancy's site summarizes the discussion on this show.

Show Notes:

Segment 0 (00:35)


additional permission system was codified as a formal part of


, but are generally more informal under GPLv2. (05:24)

Karen explained what the Principles

of Community-Oriented GPL Enforcement

. (07:49)

Karen mentioned that Daleks terminate!


Segment 1 (13:04)

Segment 2 (26:10)

  • Karen and Bradley discuss the term “non-defensive” and what

    it means.

Bradley mentioned the Twin

Peaks lawsuit

as a non-hypothetical case where the RHCC would not

apply where GPL enforcement was used by Red Hat itself as a retaliation

tactic. (29:23)

The Kernel

Enforcement Statement

and the RHCC

are available online.

Segment 3 (38:40)

The next episode of will be an interview with Molly De Blanc and

recording of her keynote at CopyleftConf 2019

Send feedback and comments on the cast

to <[email protected]>.

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Free as in Freedom is produced by Dan Lynch



music written and performed

by Mike Tarantino

with Charlie Paxson on drums.

Creative Commons License

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of this

audcast, and the accompanying show notes and music are licensed

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Commons Attribution-Share-Alike 4.0 license (CC BY-SA 4.0).

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