> For the complete documentation index, see [llms.txt](https://developers.polymath.network/polymath/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.polymath.network/polymath/api/ownedupgradeabilityproxy.md).

# OwnedUpgradeabilityProxy (OwnedUpgradeabilityProxy.sol)

View Source: [contracts/proxy/OwnedUpgradeabilityProxy.sol](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/contracts/proxy/OwnedUpgradeabilityProxy.sol)

**↗ Extends:** [**UpgradeabilityProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/UpgradeabilityProxy.md) **↘ Derived Contracts:** [**BlacklistTransferManagerProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/BlacklistTransferManagerProxy.md)**,** [**CappedSTOProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/CappedSTOProxy.md)**,** [**CountTransferManagerProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/CountTransferManagerProxy.md)**,** [**DummySTOProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/DummySTOProxy.md)**,** [**ERC20DividendCheckpointProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/ERC20DividendCheckpointProxy.md)**,** [**EtherDividendCheckpointProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/EtherDividendCheckpointProxy.md)**,** [**GeneralPermissionManagerProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/GeneralPermissionManagerProxy.md)**,** [**GeneralTransferManagerProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/GeneralTransferManagerProxy.md)**,** [**LockUpTransferManagerProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/LockUpTransferManagerProxy.md)**,** [**ManualApprovalTransferManagerProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/ManualApprovalTransferManagerProxy.md)**,** [**ModuleRegistryProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/ModuleRegistryProxy.md)**,** [**PercentageTransferManagerProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/PercentageTransferManagerProxy.md)**,** [**PLCRVotingCheckpointProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/PLCRVotingCheckpointProxy.md)**,** [**PreSaleSTOProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/PreSaleSTOProxy.md)**,** [**SecurityTokenProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/SecurityTokenProxy.md)**,** [**SecurityTokenRegistryProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/SecurityTokenRegistryProxy.md)**,** [**USDTieredSTOProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/USDTieredSTOProxy.md)**,** [**VestingEscrowWalletProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/VestingEscrowWalletProxy.md)**,** [**VolumeRestrictionTMProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/VolumeRestrictionTMProxy.md)**,** [**WeightedVoteCheckpointProxy**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/WeightedVoteCheckpointProxy.md)

**OwnedUpgradeabilityProxy**

This contract combines an upgradeability proxy with basic authorization control functionalities

## Contract Members

**Constants & Variables**

```javascript
address private __upgradeabilityOwner;
```

**Events**

```javascript
event ProxyOwnershipTransferred(address  _previousOwner, address  _newOwner);
```

## Modifiers

* [ifOwner](/polymath/api/ownedupgradeabilityproxy.md#ifowner)

### ifOwner

Throws if called by any account other than the owner.

```javascript
modifier ifOwner() internal
```

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

## Functions

* [()](/polymath/api/ownedupgradeabilityproxy.md)
* [\_upgradeabilityOwner()](/polymath/api/ownedupgradeabilityproxy.md#_upgradeabilityowner)
* [\_setUpgradeabilityOwner(address \_newUpgradeabilityOwner)](/polymath/api/ownedupgradeabilityproxy.md#_setupgradeabilityowner)
* [\_implementation()](/polymath/api/ownedupgradeabilityproxy.md#_implementation)
* [proxyOwner()](/polymath/api/ownedupgradeabilityproxy.md#proxyowner)
* [version()](/polymath/api/ownedupgradeabilityproxy.md#version)
* [implementation()](/polymath/api/ownedupgradeabilityproxy.md#implementation)
* [transferProxyOwnership(address \_newOwner)](/polymath/api/ownedupgradeabilityproxy.md#transferproxyownership)
* [upgradeTo(string \_newVersion, address \_newImplementation)](/polymath/api/ownedupgradeabilityproxy.md#upgradeto)
* [upgradeToAndCall(string \_newVersion, address \_newImplementation, bytes \_data)](/polymath/api/ownedupgradeabilityproxy.md#upgradetoandcall)
* [\_upgradeToAndCall(string \_newVersion, address \_newImplementation, bytes \_data)](/polymath/api/ownedupgradeabilityproxy.md#_upgradetoandcall)

the constructor sets the original owner of the contract to the sender account.

```javascript
function () public nonpayable
```

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

### \_upgradeabilityOwner

Tells the address of the owner

```javascript
function _upgradeabilityOwner() internal view
returns(address)
```

**Returns**

the address of the owner

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

### \_setUpgradeabilityOwner

Sets the address of the owner

```javascript
function _setUpgradeabilityOwner(address _newUpgradeabilityOwner) internal nonpayable
```

**Arguments**

| Name                     | Type    | Description |
| ------------------------ | ------- | ----------- |
| \_newUpgradeabilityOwner | address |             |

### \_implementation

⤾ overrides [Proxy.\_implementation](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/Proxy.md#_implementation)

Internal function to provide the address of the implementation contract

```javascript
function _implementation() internal view
returns(address)
```

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

### proxyOwner

Tells the address of the proxy owner

```javascript
function proxyOwner() external nonpayable ifOwner 
returns(address)
```

**Returns**

the address of the proxy owner

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

### version

Tells the version name of the current implementation

```javascript
function version() external nonpayable ifOwner 
returns(string)
```

**Returns**

string representing the name of the current version

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

### implementation

Tells the address of the current implementation

```javascript
function implementation() external nonpayable ifOwner 
returns(address)
```

**Returns**

address of the current implementation

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

### transferProxyOwnership

Allows the current owner to transfer control of the contract to a newOwner.

```javascript
function transferProxyOwnership(address _newOwner) external nonpayable ifOwner
```

**Arguments**

| Name       | Type    | Description                           |
| ---------- | ------- | ------------------------------------- |
| \_newOwner | address | The address to transfer ownership to. |

### upgradeTo

Allows the upgradeability owner to upgrade the current version of the proxy.

```javascript
function upgradeTo(string _newVersion, address _newImplementation) external nonpayable ifOwner
```

**Arguments**

| Name                | Type    | Description                                                        |
| ------------------- | ------- | ------------------------------------------------------------------ |
| \_newVersion        | string  | representing the version name of the new implementation to be set. |
| \_newImplementation | address | representing the address of the new implementation to be set.      |

### upgradeToAndCall

Allows the upgradeability owner to upgrade the current version of the proxy and call the new implementation to initialize whatever is needed through a low level call.

```javascript
function upgradeToAndCall(string _newVersion, address _newImplementation, bytes _data) external payable ifOwner
```

**Arguments**

| Name                | Type    | Description                                                                                        |
| ------------------- | ------- | -------------------------------------------------------------------------------------------------- |
| \_newVersion        | string  | representing the version name of the new implementation to be set.                                 |
| \_newImplementation | address | representing the address of the new implementation to be set.                                      |
| \_data              | bytes   | represents the msg.data to bet sent in the low level call. This parameter may include the function |

signature of the implementation to be called with the needed payload |

### \_upgradeToAndCall

```javascript
function _upgradeToAndCall(string _newVersion, address _newImplementation, bytes _data) internal nonpayable
```

**Arguments**

| Name                | Type    | Description |
| ------------------- | ------- | ----------- |
| \_newVersion        | string  |             |
| \_newImplementation | address |             |
| \_data              | bytes   |             |