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Key milestones and important events in this wiki's history
1st April 2023
Union Protocol was launched by a team of six engineers with a background in building cross-chain infrastructure.
1st June 2024
The project began a phased rollout of its testnet.
1st April 2025
A limited mainnet was launched with a focus on expanding interoperability within the Bitcoin DeFi (BTCfi) ecosystem.
1st August 2025
The ninth and final testnet phase concluded after processing over 300 million transactions.