[ARFC] GHO Savings Upgrade

Governance
7

sGHO Deployment Update

Following a review process that included feedback from BGD, the sGHO architecture has undergone a redesign to improve modularity, simplicity, and alignment with Aave standards.

:link: Revised sGHO README

Key improvements:

  • Simplified architecture: The external YieldMaestro contract was removed. Yield logic is now fully internal to the sGHO contract, reducing complexity. This introduces the possibility of maintaining a GHO buffer for optimal yield distribution.
  • Internal index-based accounting: The vault uses an internal accounting system to calculate and distribute yield during deposit and withdrawal operations, based on a target APR set by the YIELD_MANAGER, similar to how other Aave contracts handle interest accrual.
  • EIP-4626 compliance: sGHO is now a fully compliant ERC-4626 vault, supporting standard functions such as deposit, withdraw, mint, and redeem.

These changes make sGHO a more self-contained and production-ready yield vault, built to support scalable GHO staking within the Aave ecosystem.

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