v6.0.0 – IDL Overhaul, SOL Wrapping Improvements & MEV Reward Support

[k0beLeenders]

IDL Overhaul, SOL Wrapping Improvements & MEV Reward Support (version 6.0.0)

• Improved SOL Wrapping & Unwrapping 🌀
  Handling of native SOL and wSOL token accounts has been significantly improved across the platform.

  • More robust detection and management of wSOL accounts.
  • Improved behavior in transaction builders like makeLooperTx and makeRepayWithCollateralTx.
  • Better UX and fewer edge case failures when wrapping or unwrapping SOL in margin and flashloan flows.

• MEV Reward Support via Stake Pool Flow 💰
  Users who deposit native SOL into the Single Validator Stake Pool (SVSP) now earn MEV rewards on their stake—just as they would when staking with a validator.

  • Each epoch, MEV rewards earned by the main pool are temporarily moved to an "on-ramp" account, where they are staked to the same validator.
  • In the following epoch, that stake is moved back into the main pool.
  • This cycle repeats each epoch for new MEV rewards.

• New IDL Logic & Account Inference 🧠
  This release revamps instruction generation with implied account arguments and convenience flags:

  🧩 Implied Anchor Arguments

  • Most instructions now infer required accounts based on minimal inputs.
  • Reduces boilerplate significantly when using the SDK from TypeScript.

  📉 Deposit Up to Limit

  • New depositUpToLimit flag allows deposits to fill the remaining capacity of a bank.

  ⚠️ Backwards Compatibility Notes

  • Most instructions now use updated account names (e.g., marginfi_group ➝ group) but maintain account order.
  • Non-breaking for Rust clients using positional metas.
  • Potentially breaking for TypeScript clients or CPI consumers that pass accounts manually.
  • Use accountsPartial to override inference where necessary.

  🛠 Minor Improvements to Bundle Handling

  • Slight improvements to bundle error handling.
  • More consistent signature behavior

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This discussion was created from the release v6.0.0 – IDL Overhaul, SOL Wrapping Improvements & MEV Reward Support.