The latest model of Bitcoin Core—the open-source software program constructed from Satoshi Nakamoto’s authentic Bitcoin consumer—launched on Saturday, bringing alongside a modest variety of adjustments and enhancements.
Bitcoin Core 0.20.1 is a a lot smaller replace than the earlier 0.20 version launched in early June—because the model quantity suggests—with solely a handful of notable adjustments and a moderately slim change log in comparison with the immense listing seen the final time round.
In keeping with the release notes, the most important adjustments pertain to “misbehaving friends,” or customers that ship invalid blocks. With Bitcoin Core 0.20.1, these customers aren’t banned however they’re labeled as “discouraged nodes” in log output, that means the community is much less more likely to work together with them. Incoming connections from discouraged nodes are nonetheless permitted, nonetheless, however they’re extra more likely to be banned.
How a lot this black mark stops “discouraged nodes” from taking part in a job within the community is determined by how busy the Bitcoin blockchain is, however the discouragement doesn’t persist if the node is restarted.
Saturday’s 0.20.1 model additionally fixes a notifications bug that has been in impact because the launch of Bitcoin Core 0.19: “‘-walletnotify’ notifications are actually despatched for pockets transactions which can be faraway from the mempool as a result of they battle with a brand new block.”
Whereas the earlier model of Bitcoin Core had 119 contributors listed, this replace’s launch notes credit score simply 13 direct contributors—a drop commensurate with the drastically decrease variety of entries within the change log.
Far larger was June’s 0.20 launch, which instituted significant changes to Bitcoin Core’s infrastructure, most notably the removing of the OpenSSL software program library. Though initially applied by Nakamoto, it had “lengthy been a supply of bugs, emergency releases and efficiency points,” based on BitMEX Research.
Anybody can submit code for potential inclusion in Bitcoin Core, however a few of its most fervent contributors have obtained grants to proceed their full-time work on the software program. In June, two such grants have been introduced, with BitMEX granting $100,000 to developer Gleb Naumenko and BitMEX and OKCoin collectively granting $150,000 to Xapo’s Amiti Uttarwar.