Ethereum developers postponed Glamsterdam’s planned Hoodi testnet activation after auditor ChainSecurity flagged security flaws in the upgrade’s gas changes. The issue could make some contracts permanently record failed operations that were meant to remain retryable.

  • ChainSecurity identified 13 real-world examples and is contacting affected projects.
  • The changes involve EIP-8037 and EIP-8038, including a separate gas pool for creating network state.
  • Hoodi’s activation, scheduled for Monday, is delayed; node operators should use older software or await a client update.

This is a testnet delay, not evidence of a live-network exploit—but the findings expose real contract assumptions that developers must check. Traders should watch for a revised test schedule before treating Glamsterdam as a near-term catalyst.