One Address for Everything - Before Danube, every Alephium wallet had multiple addresses associated with specific network shard groups.

8-Second Block Time - The network now processes an average of 2 blocks per second across all 4 chains, bringing Alephium on par with many leading proof-of-stake networks.

Chained Transactions - Call several smart contracts and use the assets created during those calls in the same transaction. The UTXO rules now apply at the function level.

Quick Sync for Nodes - Sync time is now up to three times faster. Nodes download a quick “skeleton” first, then fetch data in parallel. More efficient syncing = more nodes = stronger network.

Passkeys Support - Secure credentials stored on your device. You can log in using Face ID, Touch ID, or hardware keys like YubiKey. Seed phrases can still be used, but they’re no longer required at the start.

Sustainable Tokenomics - The hard cap has been removed and replaced with a tail emission model. After the initial 81 years, ALPH continues to be mined at a slow, steady pace. This ensures miners remain incentivized long-term.

Smarter Developer Tools - A new VM instruction lets contracts access the external user. Bitwise operations for 256-bit integers (I256) improve efficiency. The VM now auto-handles dust, contract, and map deposits, with assets and states instantly accessible by other contract calls.

Faster, Smarter Consensus - Danube optimizes Alephium’s BlockFlow consensus algorithm with an "optimistic" execution path. Network throughput and responsiveness are doubled (up to 20k transactions per second) without compromising consensus integrity.