Conflux (CFX) CFX Releases v3.0.3 Testnet with CIP-166 Opcode and Crucial Bug Fixes

Conflux (CFX) Community launched its v3.0.3 testnet improve on February 28, addressing seven bug fixes and introducing CIP-166, a brand new Depend Main Zeros opcode that expands sensible contract capabilities on the EVM-compatible chain.

The improve comes as CFX trades at $0.0458, down 9.31% over 24 hours, with the token consolidating round key assist ranges following its February itemizing on Kraken.

What’s Truly in This Launch

Essentially the most consequential repair addresses CIP-78 sponsor flags—particularly, incorrect gasCoveredBySponsor and storageCoveredBySponsor receipt fields that have been showing on reverted transactions throughout testnet replay. For builders constructing on Conflux’s sponsorship mechanism (a core function that lets dApps pay fuel for customers), this was inflicting complications with transaction monitoring.

Different notable fixes embody:

• A impasse concern in fee_history that would freeze RPC responses
• A panic-inducing overflow bug when Proof-of-Stake force-retire occasions triggered early
• Incorrect fuel restrict upkeep within the transaction packing pool
• CPU mining timing irregularities

The brand new CIP-166 opcode provides Depend Main Zeros performance—a low-level operation helpful for bit manipulation in sensible contracts. Whereas technical, these opcodes matter for builders optimizing gas-intensive computations.

RPC Enhancements for Builders

The discharge packs a number of quality-of-life enhancements for builders. The eth_blockByNumber name now helps the pending tag, bringing it nearer to straightforward Ethereum RPC habits. Transaction receipts acquire an accumulatedGasUsed area, and Core Area logs now embody timestamps—small additions that streamline debugging.

A brand new dump subcommand lets operators export all eSpace accounts to JSON, helpful for state evaluation and migration situations.

Infrastructure Modernization

Behind the scenes, the crew bumped Rust to model 1.90 and up to date core dependencies together with revm and c-kzg. New GitHub Actions workflows now automate builds throughout Linux, macOS, and Home windows—an indication of maturing improvement infrastructure following the foremost 3.0 “Tree-Graph” improve that shipped in August 2025.

Ought to Node Operators Improve?

Conflux explicitly states this improve is optionally available. The fixes goal stability somewhat than consensus adjustments, so nodes working older variations will not fork off the community. That stated, operators experiencing RPC deadlocks or transaction pool points ought to take into account upgrading.

The easy course of: cease your node, swap the executable, restart. New operators can seize v3.0.3-testnet instantly from the GitHub launch web page.

For a community positioning itself as China’s regulatory-compliant blockchain gateway—full with Tether’s CNH-pegged stablecoin launched in November—sustaining infrastructure stability issues. Whether or not this testnet launch indicators an imminent mainnet replace stays unclear, however the improvement cadence suggests lively protocol upkeep forward of potential enterprise adoption cycles.

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