A New Package will be a smart contract which inherits an IPackage interface. The package will have the new functions or updated functions. You can define the following functions in the new package; these functions update the _methodImplementation mapping to store the package address against the function signature.

`applyUpdateToSpecificVersion`
 - `version` - Specified version (eg. "1.0.1")

 ```solidity
 function applyUpdateToSpecificVersion(string calldata version) external;
 ```

`applyUpdate`
 ```solidity
 function applyUpdate() external;
 ```

While creating the new package, make sure to inherit the original storage of the token/context so that the storage is same order or else storage collision will occur.

Also the original storage contains the COMPONENT_ID of the token/context.

Once the new package is created, deploy the package to the network.

After deployment, the package should be published to the Updates Repository.

Use the publishUpdate function of the IUpdatesRepository interface to publish the package with version string.

solidity function publishUpdate(address updatePackage, string calldata version) external;

Parameters

Update Package

Address of the package

Version

Version of the package. eg. "1.0.1"

To update the token/context with the new package after publishing it to the updates repository, use the update function of the IUpgradable interface in the token/context smart contract.

solidity function update() external;

If you want to update the token with a specific version of the package, use the updateToSpecificVersion function.

solidity function updateToSpecificVersion(string calldata version) external;

Parameters

Version

Version of the package. eg. "1.0.1"