TRON's next mainnet upgrade, GreatVoyage-v4.8.2 (Pyrrho), will add a precompile for secp256r1 (P-256) elliptic curve signature verification, cutting on-chain verification cost from more than one million gas to 6,900 gas per call. The release is documented in the Pyrrho planning file in the TRON protocol manager repository, last updated June 16, 2026; mainnet activation timing remains pending.
The P-256 curve underlies signatures produced by Apple Secure Enclave, Android Keystore, and FIDO2/WebAuthn hardware authenticators, the credential base for passkeys and biometric logins on consumer devices. TRON's existing precompile set covers secp256k1, the curve used in standard crypto key pairs. P-256 adds the separate NIST-standardized curve embedded in secure hardware that ships on modern smartphones and laptops.
That matters for developers building account abstraction or consumer wallet applications on TRON. Verifying a P-256 signature in a TRON smart contract today costs more than one million gas, making hardware-backed authentication impractical for most applications. The precompile cuts that to 6,900 gas per call, matching the Ethereum EIP-7951 treatment of the same curve.
The upgrade also ships seven additional changes. TIP-2935 extends block hash access beyond the current 256-block window, removing an oracle dependency for contracts that reference older state. TIP-7823 and TIP-7883 tighten upper and lower ModExp energy bounds 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 the TRON VM. TIPs 833, 836, and 854 harden resource-processor window calculations and canonicalize calldata for existing signature precompiles.
Mainnet timing has not been finalized. The June 16 Pyrrho planning document lists activation as TBD, and the TRON developer announcements page had not published a formal notice as of June 28, 2026.