“The nature of Bitcoin is such that once version 0.1 was released, the core design was set in stone for the rest of its lifetime.” — Satoshi Nakamoto, June 17, 2010.
One of the distinctions that BSV blockchain makes in comparison to BTC is that BSV has a 'locked protocol' that represents the original Bitcoin.
What does ‘locked protocol’ mean? Does it mean that the Bitcoin blockchain allows no new software development? Of course not.