Indeed, that&#x27;s the first time I saw it. Quite unexpected given their past stance.<p>But I think some legal shifts helped there. Patent trolling cases which tried to attack VPx were repealed (like one from Nokia), so may be MS feels less threatened now (and new CEO helps as well I guess).<p>VPx also got some good theoretical legal backing like this: <a href="http:&#x2F;&#x2F;www.duanemorris.com&#x2F;memo&#x2F;VP8Compilation.pdf" rel="nofollow">http:&#x2F;&#x2F;www.duanemorris.com&#x2F;memo&#x2F;VP8Compilation.pdf</a>