Bob Summer Will, lead developer of C++ Ethereum, has recently detailed in a blog post explaining the rationale for re-licensing C++ Ethereum from the copyleft GPLv3 license to the more permissive Apache 2.0 license. More information about what it means can be found here.

Anthony Eufemio, Digix’s Co-Founder and CTO, who is an active contributor to C++ Ethereum (under the name ‘Tymat’), is fully behind this as an individual and as Digix, granting Stiftung Ethereum full rights to use code we have contributed and will continue to contribute to the repository.