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In this episode of “The Van Wirdum Sjorsnado”, hosts Aaron van Wirdum and Sjors Provoost discussed the newly released Bitcoin Core 0.21.0.

Bitcoin Core 0.21.0 is the 21st and last major release of the Bitcoin Core software, the oldest and most important Bitcoin node implementation, which is often also considered the reference implementation for the Bitcoin protocol.

Guided by the release notes of Bitcoin Core 0.21.0, Wirdum and Provoost discussed the major changes in this release. These include the new retransmission transaction mempool policy, Tor v3 support, peer anchors for when the node reboots, BIP 157 (Neutrino) for light clients, the new testnet called Signet, BIP 339 (wtxid relay), Taproot code, RPC changes including a new send RPC, ZeroMQ, descriptor wallets, the new SQLite database system and the satoshi-per-byte fee denomination.

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For each of the new features, the hosts discussed what the features are, how they will change with Bitcoin (Core) and – where applicable – what the end goal is. (In developing Bitcoin Core, new features are often part of a larger process.) For each feature they discussed in a previous episode of “The Van Wirdum Sjorsnado,” they also mentioned the relevant episode number.

Read more about the Bitcoin Core 0.21.0 release notes.


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