Changelog for Program

cp_amm [0.2.0]

Added

• Pool now will track reserves balances (token_a_amount, token_b_amount) if pool.layout_version == 1. For pool layout_version 0, operator can call the new endpoint fix_pool_layout_version to pump pool version.
• Add a new collect_fee_mode (Compounding), in the new collect fee mode, fee will be collected in quote token, and a percentage of fee (configurable) will be added in reserves for compounding. In the new collect fee mode, the pool doesn't have concentrated price range, instead following constant-product formula token_a_amount * token_b_amount = constant.
• Endpoints create_config, initialize_customizable_pool and initialize_pool_with_dynamic_config will allow user to create pool with collect_fee_mode == Compounding, and config for compounding_fee_bps.

Changed

• Related to event EvtSwap2, in swap_result field, partner_fee will be replaced by compounding_fee, now total_trading_fee will be calculated as swap_result.claiming_fee + swap_result.compounding_fee

Removed

• Removed partner field from Pool struct
• Removed unused partner_fee feature and the claim_partner_fee endpoint

Breaking Changes

• Quote function will be changed by the new fee mode

Changelog for TS SDK

cp-amm [1.3.7]

Features

Added

• Added new CollectFeeMode.Compounding mode — a constant-product (x \* y = k) liquidity mode where a configurable percentage of trading fees are compounded back into pool liquidity (as token B), with the remaining fees available for claiming. Pools with compounding mode do not use price ranges.
• Added LiquidityHandler interface and two implementations: CompoundingLiquidityHandler and ConcentratedLiquidityHandler, with a getLiquidityHandler factory function that dispatches based on collectFeeMode.
• Added compoundingFeeBps field to PoolFeesParams for configuring the compounding fee split.