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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
makeLooperTxandmakeRepayWithCollateralTx. - 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
depositUpToLimitflag 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
accountsPartialto override inference where necessary.
🛠 Minor Improvements to Bundle Handling
- Slight improvements to bundle error handling.
- More consistent signature behavior