# pool.upgrade

Upgrade pool of `id` to latest version with all feature flags.

Queries the database for the pool matching the given `id`, then enables all supported ZFS feature flags on the pool. This is a one-way operation and cannot be reversed. Once upgraded, the pool will not be importable on systems running older ZFS versions that do not support the newly enabled features.

Raises a `ValidationError` if no pool matches the given `id` or if the pool is not currently imported.

Type: object

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Type: array
No Additional Items

#### Tuple Validation

##### Parameter 1: id

#### id

Type: integer

ID of the pool to upgrade to the latest feature flags.

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#### Result

Type: const

Indicates successful pool upgrade.

Specific value: `true`

Required roles: POOL_WRITE