Following changes must be done to migrate from v3.0 to v4.0

## Request

### Typechange of parameter:

- `statuses`: change from `array` (`[1,2,3]`) to `comma-separated list` (`1,2,3`)

## LimitOrder Request Data changed

### Removing of parameters:

- `allowedSender`
- `offsets`
- `interactions`

### Adding of parameter:

- `extension`: An interaction call data. ABI encoded set of makerAssetSuffix, takerAssetSuffix, makingAmountGetter, takingAmountGetter, predicate, permit, preInteraction, postInteraction.If extension exists then lowest 160 bits of the order salt must be equal to the lowest 160 bits of the extension hash
- `makerTraits`: Includes some flags like, allow multiple fills, is partial fill allowed or not, price improvement, nonce, deadline etc.

## Response

### Removing of parameters:

- `allowedSender`
- `offsets`
- `interactions`

### Adding of parameters:

- `extension`: An interaction call data. ABI encoded set of makerAssetSuffix, takerAssetSuffix, makingAmountGetter, takingAmountGetter, predicate, permit, preInteraction, postInteraction.If extension exists then lowest 160 bits of the order salt must be equal to the lowest 160 bits of the extension hash
- `makerTraits`: Includes some flags like, allow multiple fills, is partial fill allowed or not, price improvement, nonce, deadline etc.

## New get order by order hash endpoint added:

- `orderbook/v4.1/{chain}/order/{orderHash}` `GET` endpoint was created to enable getting orders filtered by the specified order hash