For more information, see the Bitcoin Core PR Review Club meeting notes about this PR. For more information, place the cursor over the Connection Type field name to see the tooltip shown below. Since the success of Bitcoin, site there have been over 8,000 other virtual currencies (as of February 2021) introduced with varying degrees of success and popularity such as Ethereum, Litecoin, Monero and Dash. There are also regression and integration tests, written in Python. ● Lightning-based messenger application Juggernaut launches: In a blog post announcing the first release of Juggernaut, John Cantrell describes how the messaging and wallet features are built using keysend payments. The mailing list post does note that a significant amount of work would need to be done to implement the idea, including the development of a privacy-preserving cryptographic proof.