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WebM project changes to standard Open Source license

WebM

Google has finally changed the license on its open-source WebM (VP8) video codec after complaints that it wasn’t open enough.

As it was originally written, if a patent action was brought against Google, the patent license terminated. This provision itself is not unusual in an OSS license, and similar provisions exist in the 2nd Apache License and in version 3 of the GPL. The twist was that ours terminated “any” rights and not just rights to the patents, which made our license GPLv3 and GPLv2 incompatible. Also, in doing this, we effectively created a potentially new open source copyright license, something we are loath to do.

Changes to the WebM Open Source License

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