Tron announced on October 10, 2026 that post-quantum cryptographic signatures are ready to be deployed on mainnet after months of testing on the Nile testnet. The testnet upgrade took place on July 2, 2026 via Committee Proposal No. 20628, with two NIST-standardized algorithms: FN-DSA-512 (Falcon-512) and ML-DSA-44 (Dilithium). The new signatures, larger in size (approximately 667 bytes versus current ECDSA signatures), cover transactions, block production, and peer-to-peer handshakes between nodes. The timeline has slipped by one quarter: mainnet was originally targeted for Q3 2026 and is now aimed for end of 2026, with activation still subject to governance body approval. Tron processes hundreds of millions of transactions per month and holds tens of billions of dollars in stablecoin value.
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