Bitcoin Core 22.0 update, the 22nd major version of Bitcoin’s original software, launched by Satoshi Nakamoto nearly 13 years ago, was officially released yesterday. Overseen by Bitcoin Core chief controller Wladimir van der Laan, this update was rolled out by 128 developers in about 8 months. The previous update was made on January 14, 2021.
Bitcoin Core 22.0 is also the first major Bitcoin Core release to support the upcoming Taproot protocol update… This update also made some improvements over previous Bitcoin Core versions.
The new update made improvements to remote procedure calls (RPCs), which are communication channels that allow users to interact with the Bitcoin network, and to the elements that build the system such as files, tools, wallets, user interfaces, and the network.
Tor v3 instead of Tor v2
Another important change was the removal of Tor v2 support, which is the ananoim browser, and the provision of Tor v3 support instead. This will allow the use of external signers such as hardware wallets. Bitcoin Core 22.0 will not be able to run on versions of macOS prior to 10.14. However, it will support all macOS versions after Windows 7 and Linux kernel additions.
Wider Segwit multi-signatures
Multi-signature (multisig) exits are coins that require more than one keyword signature confirmation. For example, it could be two signatures from two different keyword lists, or 3 signatures from 5 keyword lists, or even 7 signatures from 8 keyword lists. The numbers can be further increased. Multiple signatures are used for various purposes. One of them is to secure funds using different devices. Coins are still safe and available when a device is compromised or lost. Similarly, certain shares of funds can be controlled by multiple signatures. If there is more than one owner of the funds, the approval of all of them may be required to spend. In addition, multiple signatures are also used in some layer two solutions.
Bitcoin Core software has allowed multiple signatures of up to 16 keyword lists on Segwit outputs so far, although the Bitcoin protocol has no limit. Bitcoin Core 22.0 has now expanded its Segwit multi-signature capability to 20 keyword lists.
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