Release mrgn - 0.1.2 · mrgnlabs/marginfi-v2

Summary of New Features

Implied anchor args everywhere - TS consumers rejoice, no more having to pass every account the instruction requires. Most instructions now require only a handful of accounts, and infer the rest.
Deposit up to limit - pass a flag to deposit up to the bank's deposit cap. No more guessing if a bank has capacity.
Permissionless incentives - program-level support to designate a wallet that can receive your earned incentives without any input from you. We'll crank users that opt-in on a regular basis, so no more missing out on rewards because you forgot to claim them (front end for this is coming soon at a date TBD)
Logging improvements everywhere
Health pulse instruction to view internal account health
Preparations for Arena permissionless pools launch

account.lending_account.balances[n] is now a u8 instead of bool (0 = false, 1 = true)
MarginfiAccount padding now split into padding0 and padding1
BankConfig padding now split into padding0 and padding1
Almost all instructions are now modified to use implied anchor args. Some argument names have changed (e.g. marginfi_group -> group), but order is maintained. This should be non-breaking to Rust clients passing simple account meta, but may be breaking to TS clients passing account manually, or to CPI consumers. All accounts that have undergone a name change will now be inferred and can be omitted. Use accountsPartial as a fallback if this fails.
deposit instruction now accepts one additional argument (an Option<bool>) to flag if the depositor wants to deposit up to the bank's available limit. Actual deposit will be min(amount specified in deposit arg, deposit limit remaining in bank)
Various Stale Oracle and Illegal Liquidation errors now emit a more specific custom error. Update is only required if you were checking for a specific error code.
marginfiGroupInitialize now takes an admin and a bool arg (true to set as an arena group)
marginfiGroupConfigure now takes an admin and a bool arg (true to set as an arena group)
MarginfiGroup now has a banks field which tracks the number of banks created under that group

marginfi_account_update_emissions_destination_account - allows a user to designate a wallet where their earned emissions can be permissionlessly withdrawn into. Users who do not opt into this feature can only withdraw manually
lending_account_withdraw_emissions_permissionless - a permissionless ix that withdraws emissions into an account users chose when they opted into permissionless emissions.
lending_account_health_pulse - a permissionless ix that caches the internal health information computed by the risk engine. Fetch the user account and read the health_cache to see information about prices used, net asset and liability prices, etc.

On risk engine failure, now anchor logs various internal information.
Many new error messages, replacing existing generic errors like StaleOracle and IllegalLiquidation
On any add or config instruction (add bank, configure group, configure bank, etc) now echos the settings being changed in anchor logs

group.banks only tracks the number of banks created after 0.1.2 goes live
Groups created prior to the 0.1.2 update can be incorrectly configured as arena groups since we do not count banks created prior to that update.
- Since this basically only affects the mrgn-owned main group and mrgn-owned Arena group used for testing, this is a non-issue. We will, prior to Arena launch, double check that there are no other affected groups.

Deployed staging: March 14, 2025 ~3:00pm ET (hash 65bbbe)
Deployed mainnet: April 14, 2024 ~1:00pm ET (hash 65bbbe)