# SpecId

Ethereum specification identifiers.

## Functions

| Name                | Description                         |
| ------------------- | ----------------------------------- |
| [`SpecId.enables`](/evm/execution/SpecId/enables) | Returns whether `specId` enables the rules of `other`. |

## Types

| Name                | Description                         |
| ------------------- | ----------------------------------- |
| [`SpecId.SpecId`](/evm/execution/SpecId/types#specidspecid) | Ethereum specification identifiers, in the engine's declaration order. |