For all those on this "no activity or development since May" kick please note the following:
1) We have over 26 separate projects or as we call them "repositories" we maintain. 25 other ones besides the main core project. These often require updates as well. Unlike the bitcoin core devs, we have to maintain support infrastructure such as mining pools, block explorers and several wallets written in other languages. In a perfect world it would be nice if all we had to worry about was the core protocol. View them here: https://github.com/digibyte?tab=repositories
2) In a repository, there are multiple branches. You don't push stuff to the main branch unless it is stable and tested. If you notice there are other development branches that have been updated in the past 30 days. View dev branch here: https://github.com/digibyte/digibyte/tree/6.15.1
3) Most testing is done locally without ever pushing to the public repository.
4) The DGB code base is more up to date with better features than any other UTXO codebase out there at the moment. We have the fastest block times, and the best difficulty adjustment system. Plus we were the first to activate SegWit in May.
Sure there is always something that can be enhanced and updated. But let me ask two simple questions; Who actually pays anyone to work on the core protocol, especially full time? What is more important, having constant commits to the core protocol to satisfy some third-party rating system or bringing real-world applications online?
Simple answer... no one is paying for ongoing development, it has been all volunteer and privately funded donations to this point over the past 4 years. We are spending our time building platforms such as the GO wallet that allow people to more easily use the DGB blockchain.