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ALGO Algorand is about to launch the most important protocol upgrade to date.
Node support rate for Consensus v5.0.0 has exceeded 75%, but the main network will not officially enable the upgrade until an absolute majority of 90%.
The protocol layer natively supports anti-quantum accounts
The core highlight of this upgrade is native support for post-quantum (PQ) accounts based on the Falcon-1024 signature. Falcon-1024 is a lattice-based digital signature scheme that has been selected as a standardization scheme by the National Institute of Standards and Technology (NIST). Its security relies on the NTRU lattice structure, which can effectively resist quantum attacks while keeping signatures compact and fast verification. Embedding this mechanism directly into the protocol makes up for the known weaknesses of elliptic curve cryptography and allows accounts to gain protocol-level quantum-resistant capabilities without having to rely on various temporary patches.
Falcon-1024 achieves NIST Safety Level 5 (approximately equivalent to the strength of AES-256). The main cost is size: the Falcon signature is about 1,280 bytes in size, while the Ed25519 signature is only 64 bytes, which is about 20 times larger than the latter. Therefore, transactions using Falcon signatures will pay a fee equivalent to three minimum transactions due to their larger size and higher calculation verification requirements.
With the release of this agreement, the older version of the Software Development Kit (SDK) will support deriving Falcon-1024 accounts from standard 25-word mnemonic words. The SDK, AlgoKit and Pera Wallet will also natively support Falcon-1024 accounts.
Dynamic Fees and Smart Contract Capacity Expansion
In addition to security improvements, v5.0.0 also introduces changes in the way transaction fees are calculated. The upgrade adopts a new dynamic transaction fee structure that allows fees to be paid based on the content and resource requirements of each transaction, replacing the fixed per-transaction fee model that has been used since its launch. Algorand's dynamic fee mechanism fits with its broader roadmap, which includes congestion pricing mechanisms similar to Ethereum EIP-1559. The congestion tracking function is currently online, but relevant fees have not yet been activated to ensure a smooth transition of decentralized applications.
This upgrade also increases the capacity limit of smart contracts. The new rule raises the limit to a maximum of 7 additional pages, allowing a total of 16,384 bytes. The key is that existing decentralized applications can take advantage of larger program space without changing their application IDs, which means developers can extend contract logic without disturbing users or redeploying.
The final link of the phased quantum roadmap
v5.0.0 marks the final result of the phased quantum roadmap. Algorand's strategy is implemented step by step: first protect historical assets, then protect existing assets, and finally protect the consensus mechanism. As node operators begin voting, the network is about to complete the most critical step in this sequence.
