Trigger the transition when the on-chain protocol major version (from the ledger state) reaches this number.

Note: The HFC logic does not require the trigger version for one era to be the successor of the trigger version for the previous era.

For testing only, trigger the transition at a specific hard-coded epoch, irrespective of the ledger state.

Ledger states in this era cannot determine when the hard fork transition will happen.

It's crucial to note that this option does not imply that "the era will never end". Instead, the era cannot end within this node process before it restarts with different software and/or configuration for this era.