Function diem_transaction_builder::stdlib::encode_update_diem_version_script_function

pub fn encode_update_diem_version_script_function(
    sliding_nonce: u64, 
    major: u64
) -> TransactionPayload

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.