pub fn encode_update_diem_version_script_function(
sliding_nonce: u64,
major: u64
) -> TransactionPayloadExpand description
Summary
Updates the Diem major version that is stored on-chain and is used by the VM. This transaction can only be sent from the Diem Root account.
Technical Description
Updates the DiemVersion on-chain config and emits a DiemConfig::NewEpochEvent to trigger
a reconfiguration of the system. The major version that is passed in must be strictly greater
than the current major version held on-chain. The VM reads this information and can use it to
preserve backwards compatibility with previous major versions of the VM.
Parameters
| Name | Type | Description |
|---|---|---|
account | signer | Signer of the sending account. Must be the Diem Root account. |
sliding_nonce | u64 | The sliding_nonce (see: SlidingNonce) to be used for this transaction. |
major | u64 | The major version of the VM to be used from this transaction on. |
Common Abort Conditions
| Error Category | Error Reason | Description |
|---|---|---|
Errors::NOT_PUBLISHED | SlidingNonce::ESLIDING_NONCE | A SlidingNonce resource is not published under account. |
Errors::INVALID_ARGUMENT | SlidingNonce::ENONCE_TOO_OLD | The sliding_nonce is too old and it’s impossible to determine if it’s duplicated or not. |
Errors::INVALID_ARGUMENT | SlidingNonce::ENONCE_TOO_NEW | The sliding_nonce is too far in the future. |
Errors::INVALID_ARGUMENT | SlidingNonce::ENONCE_ALREADY_RECORDED | The sliding_nonce has been previously recorded. |
Errors::REQUIRES_ADDRESS | CoreAddresses::EDIEM_ROOT | account is not the Diem Root account. |
Errors::INVALID_ARGUMENT | DiemVersion::EINVALID_MAJOR_VERSION_NUMBER | major is less-than or equal to the current major version stored on-chain. |