Vitalik advocates adopting the "copyleft" software publishing license model

According to The Block, on Monday, Ethereum co-founder Vitalik Buterin stated in a new blog post a new stance on software release, advocating for the adoption of a slightly more restrictive "copyleft" license, which is different from his previous stance of supporting loose licenses, allowing developers to use and redistribute code without restrictions. Vitalik explained that "copyleft" licenses such as CC-BY-SA and GPL stipulate that if derivative works are created and distributed, new works must be released under the same license. Although he is generally opposed to copyright, he wants to "fight copyright with copyright" and use licenses to ensure that derivative works are open to the public. He stated that the new stance is influenced by the mainstream adoption of open source code by companies such as Google and Huawei, as well as intensified competition in the encryption field. Nowadays, the competition in the field of encryption is fierce and profit driven. We can no longer expect people to open source purely out of goodwill. Open source cannot rely solely on "pleading", but also requires "tough measures", that is, only open source coders can obtain certain code access permissions.