> ## Documentation Index
> Fetch the complete documentation index at: https://docs.outcome.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# SDK changelog: releases of @outcome.xyz/hip4

> Release history of the @outcome.xyz/hip4 TypeScript SDK - new features, changes, and fixes per version.

All releases of `@outcome.xyz/hip4` on [npm](https://www.npmjs.com/package/@outcome.xyz/hip4). Tags and full diffs live on [GitHub](https://github.com/Outcome-xyz/hip4/releases).

<Update label="1.0.2-beta" description="June 25, 2026">
  ### Added

  * **`wallet.sellHype(amount)`** - sell HYPE on the HYPE/USDC spot market. Size is floored to HYPE's 2 decimals (`ROUND_DOWN`) so a sell never exceeds your balance. See [Wallet](/sdk/reference/wallet-adapter).
  * **`wallet.agentSetAbstraction("u" | "p" | "i")`** - switch the master account's abstraction mode (`"u"` unified account, `"p"` portfolio margin, `"i"` disabled) via the approved agent key. See [Wallet](/sdk/reference/wallet-adapter).
  * **`client.fetchUserNonFundingLedgerUpdates(user)`** - REST counterpart of the `userNonFundingLedgerUpdates` channel (deposits, withdrawals, transfers), returned newest-first.
  * **`participantsCount` on `checkRewards` results** - total distinct participants for the epoch, independent of the `wallet` filter. See [Liquidity Rewards](/sdk/reference/liquidity-rewards).
  * Exported `HYPE_USDC_SPOT_INDEX_MAINNET` / `HYPE_USDC_SPOT_INDEX_TESTNET` constants and `HLLedgerUpdate`, `HLLedgerDelta`, `HLWebData3`, `HLClearinghouseState`, `HLFrontendOrder` types from the root entry point.

  [Full diff](https://github.com/Outcome-xyz/hip4/compare/v1.0.1-beta...v1.0.2-beta)
</Update>

<Update label="1.0.1-beta" description="June 11, 2026">
  ### Added

  * **`liquidityRewards` module** - season-scoped liquidity-reward checks, starting with `s1` (World Cup 2026). See [Liquidity Rewards](/sdk/reference/liquidity-rewards).
    * `checkEligibility({ subject })` - eligible team and match books per scoring day
    * `checkRewards({ wallet, date })` - per-wallet reward scores
    * `LIQUIDITY_REWARDS_CONFIG`, `LiquidityRewardsError`, and typed results exported from the main entry point
  * **`quoteToken` on outcomes** - `HLOutcome` and `HLWsOutcomeSpec` carry an optional `quoteToken` symbol. The field is optional on the wire; SDK fetch helpers (`outcomeMeta`, settled-outcome lookups, and WebSocket `outcomeCreated` updates) default it to `"USDH"` when absent.

  [Full diff](https://github.com/Outcome-xyz/hip4/compare/v1.0.0-beta...v1.0.1-beta)
</Update>

<Update label="1.0.0-beta" description="May 20, 2026">
  Initial public beta release.

  ### Added

  * `createHIP4Adapter()` - single entry point for HIP-4 prediction market access on Hyperliquid (events, market data, account state, trading, wallet, auth)
  * Typed sub-modules: `events`, `marketData`, `account`, `trading`, `wallet`, `auth`, `ramp`
  * WebSocket subscriptions for prices, order books, fills, and positions (return an unsubscribe function)
  * Internal L1 agent + EIP-712 signing - no external crypto dependencies
  * Decimal-precision math helpers under `lib/precision` for safe price/size arithmetic
  * Stream helpers: `createPriceFeed`, `createPerpPriceFeed`
  * Type-only entry point: `import type { ... } from "@outcome.xyz/hip4/types"`

  ### Notes

  * Zero runtime dependencies
  * Node 18+ required
</Update>