TRON's next mainnet upgrade, GreatVoyage-v4.8.2 (Pyrrho), will add a precompile for secp256r1 (P-256) elliptic-curve signature verification, cutting the per-call cost from more than one million energy to 6,900 gas. Mainnet timing is still TBD in the June 16, 2026 planning document.
Why P-256 matters for passkeys
P-256 is the curve embedded in Apple Secure Enclave, Android Keystore, and FIDO2/WebAuthn hardware authenticators, the signing layer behind passkeys and biometric logins on modern phones and laptops. Verifying those signatures inside a TRON smart contract currently costs more than one million energy, making hardware-backed account authentication impractical for most applications. At 6,900 gas, the same check becomes cost-viable.
TRON's existing precompile set covers secp256k1, the curve used in standard crypto key pairs. P-256 is the separate NIST-standardized curve used in consumer secure hardware. Developers building account-abstraction wallets or consumer-facing dApps on TRON have had to route around hardware-backed signing or absorb the verification cost.
What else Pyrrho includes
Pyrrho includes seven additional TIPs. TIP-2935 extends block hash access beyond the current 256-block window, removing a state-oracle dependency for contracts that reference older blocks. TIP-7823 and TIP-7883 set upper and lower energy bounds on ModExp to close a cost-manipulation surface in computation-heavy contract calls. TIP-7939 adds a count-leading-zeros (CLZ) opcode, accelerating binary arithmetic in math libraries that compile to TRON's VM. TIPs 833, 836, and 854 harden resource-processor window calculations and standardize calldata handling for existing signature precompiles.
Mainnet timing remains TBD
As of June 28, 2026, all eight TIPs remain in Last Call phase. The planning document lists both Nile testnet and mainnet deployment dates as TBD, and no formal upgrade notice had appeared on the TRON developer announcements page.
