Changes to BIP-360 - Pay to Quantum Resistant Hash (P2QRH)

The discussion centers on the selection of protocol versions for blockchain transactions, specifically highlighting concerns over payload size and efficiency. The primary point raised is the necessity of choosing a protocol version that aligns with the payload size requirements of a 256-bit hash without the need for additional, unnecessary bytes. This consideration is crucial for optimizing space on the blockchain, which has permanent implications.

There appears to be some confusion regarding the versions of the protocols in question. Contrary to what might have been previously understood, P2TR operates under version 1. The conversation then shifts towards deciding between version 2 or version 3 for future use. The choice is pivotal, given that Ethan, a participant in the discussion, has already ruled out the adoption of the same version as P2TR for their purposes. This decision-making process underscores the importance of selecting the most suitable protocol version based on specific technical requirements such as payload size, rather than merely defaulting to the use of an existing version without considering its compatibility or efficiency.