About Bitcoin's development history:
On August 1, 2017, Bitcoin underwent a hard fork, creating a new chain called Bitcoin Cash (BCH).
Most of Bitcoin's protocol upgrades are implemented through soft forks: old nodes that haven't upgraded still accept new blocks, so the network doesn't split into two chains.
$BTC 82769.83（+1.12%）
On August 1, 2017, Bitcoin underwent a hard fork, creating a new chain called Bitcoin Cash (BCH).
Most of Bitcoin's protocol upgrades are implemented through soft forks: old nodes that haven't upgraded still accept new blocks, so the network doesn't split into two chains.
$BTC 82769.83（+1.12%）