Deep Dive
1. Emergency Hard Fork v1.0.26 (3 September 2026)
Overview: This was an emergency, forward-only upgrade to patch a critical vulnerability where malicious validators were claiming block rewards above the protocol's intended limits. It permanently removed the excess tokens from circulation.
The upgrade, labeled v1.0.26, was a protocol-level fix that did not roll back transactions or affect user funds. The Core team coordinated with validators to deploy the patch after containing the exploit on 1 September. The hard fork successfully burned over 150 million CORE tokens to correct the supply inflation.
What this means: This is bullish for CORE because it demonstrates the DAO's ability to act swiftly on critical security issues, protecting the network's long-term economic integrity. For users, it means staking rewards are now secure and predictable again, restoring trust in the core incentive system.
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2. Core Node v1.2.0 Mainnet Hard Fork (October 2025)
Overview: This mandatory update introduced order handling improvements, security upgrades, and optimizations to the API server and wallet for atomic swap order flow.
The release required all node operators to update to v1.2.0 to remain compatible with the network, with a mainnet hard fork scheduled for approximately 21 January 2026. The improvements were focused on backend infrastructure and transaction processing reliability.
What this means: This is neutral for CORE as it represents essential maintenance. For the network, it means stronger security and more reliable infrastructure for developers building applications, leading to a better overall user experience.
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3. Network Upgrade v1.0.17 (25 June 2025)
Overview: This was a scheduled network upgrade that involved protocol changes to ensure continued smooth operation. Major exchanges like Bybit announced support to maintain uninterrupted services for users.
The upgrade required validators and node operators to adopt the new software. Bybit confirmed the upgrade would not disrupt trading or wallet functions, highlighting a focus on operational stability during blockchain evolution.
What this means: This is neutral for CORE, reflecting routine protocol development. For users, it meant no service interruptions, reinforcing confidence in the network's technical governance and upgrade processes.
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Conclusion
Core's recent codebase activity highlights a strong focus on securing its staking economy and maintaining robust network infrastructure, transitioning from routine upgrades to emergency protocol defense. How will the planned shift from token burns to revenue-funded buybacks, as outlined in its 2026 roadmap, further shape its codebase priorities?