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“Tivoization” and your right to install under Copyleft and GPL (2021)

pabs3

created: July 28, 2025, 4:35 a.m. | updated: July 28, 2025, 10:58 a.m.

"Tivoization" & Your Right to Install Under Copyleft & GPLTwo schools of thought about the purpose of copyleft have been at odds for some time. During that time, I led FSF's GPL enforcement and copyleft education measures, including the CLE classes (first taught in 2003-2004). The 2003 TiVo GPL Enforcement ActionEven before teaching those CLE classes, as (then) FSF's Executive Director, I led the GPLv2 enforcement effort against TiVo. I herein recount the entire history regarding the TiVo GPLv2 violation and how it led to the “tivoization” rhetoric. Stallman on GPLv3 Installation InformationIn April 2012, I started an email thread with Stallman yet again about the term “tivoization”.

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