> For the complete documentation index, see [llms.txt](https://docs.fringe.fi/smart-contract-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fringe.fi/smart-contract-documentation/openzeppelin/contracts/proxy/beacon/beaconproxy.md).

# Beacon Proxy

*This contract implements a proxy that gets the implementation address for each call from a {UpgradeableBeacon}. The beacon address is stored in storage slot `uint256(keccak256('eip1967.proxy.beacon')) - 1`, so that it doesn't conflict with the storage layout of the implementation behind the proxy. Available since v3.4.*

## Events

### AdminChanged

```solidity
event AdminChanged(address previousAdmin, address newAdmin)
```

#### Parameters

| Name          | Type    | Description |
| ------------- | ------- | ----------- |
| previousAdmin | address | undefined   |
| newAdmin      | address | undefined   |

### BeaconUpgraded

```solidity
event BeaconUpgraded(address indexed beacon)
```

#### Parameters

| Name             | Type    | Description |
| ---------------- | ------- | ----------- |
| beacon `indexed` | address | undefined   |

### Upgraded

```solidity
event Upgraded(address indexed implementation)
```

#### Parameters

| Name                     | Type    | Description |
| ------------------------ | ------- | ----------- |
| implementation `indexed` | address | undefined   |