BTQ Technologies has released the first working implementation of Bitcoin Improvement Proposal 360 (BIP 360), marking an early attempt to bring quantum-resistant transaction infrastructure into a live testing environment.

Announced Thursday, the upgrade is now running on the Bitcoin Quantum testnet v0.3.0, a separate blockchain designed to simulate how Bitcoin could function in a post-quantum world. The release moves BIP 360 beyond theory, offering developers, miners, and researchers a place to test quantum-resistant transactions in practice.

BIP 360 introduces a new transaction format known as Pay-to-Merkle-Root (P2MR), which restructures how transaction data is committed on-chain. 

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