https://bitcoin.stackexchange.com/questions/130709/whats-the-current-situation-with-bitcoin-testnets
testnet3 - What's the current situation with Bitcoin testnets? - Bitcoin Stack Exchange
On mempool.space, testnet3 is marked as deprecated and encourages users to use testnet4. is testnet4 now the canonical testnet for Bitcoin? why not just call...
the current situationstack exchangetestnet3