| Name | Description |
|---|---|
| Batch | Long running upgrades should implement this interface |
| Name | Description |
|---|---|
| Locator | Locates and registers both core and plugin upgrades |
| LocatorTest | |
| NonRequiredTestBatch | |
| Result | Result of a single BatchUpgrade run |
| TestBatch | |
| TestNoIncrementBatch |