Unverified60% confidenceFactExact time
GPLv3 added anti-Tivoization clauses and patent grant clauses.
2
Sources
60%
Confidence
Long-term
Relevance
8/5/2026
First Seen
Sources
Mole：开源免费的Windows一键隐藏窗口工具
Related Claims
UnverifiedGPLv2要求分发者以不超过物理复制成本的价格提供源代码，有效期至少三年；GPLv3增加了反Tivoization条款和专利授权条款79% similarVerifiedGPL v3 added anti-circumvention clauses targeting Tivoization (device lockdown), prohibiting the use of hardware signing mechanisms to prevent users from running modified software.72% similarUnverifiedGPL系列许可证具有Copyleft传染性，要求衍生作品同样开源，对商业应用形成天然壁垒65% similarUnverifiedThe GPL (GNU General Public License) sets the condition that anyone may freely use, modify, and distribute the code, but must release derivative works under the same license — the "Copyleft" mechanism.62% similar
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