According to the list provided by CryptoDiffer, the three most actively developed blockchains are currently Kusama, Polkadot and Cardano, with more than 130 Github commits in the last 30 days.
The development activity is being measured in the number of commits made by various developers on Github. While Kusama, Cardano and Polkadot remain at the top, other coins like Ethereum also moved above the 100 commits threshold. Solana could not make it past the 100 commits remaining with 95 commits.
Kusama has become the most developed project in the industry, but there is a reason for it. Kusama is a public environment for Polkadot, which was designed to test applications, new blockchains and everything else before releasing it to the main network.
