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Each time you publish a skill, Vantage assigns a new version number. Versioning lets you keep multiple variants of one skill rather than creating new skills for each change. The Version column shows each skill’s version number. Click the version number to open a dialog box with information about the existing versions of the skill.
Skill Versions dialog box listing existing versions of a skill
Before publishing a new version of a skill, check its extraction statistics. If the new version performs worse than the previous version, you may prefer not to publish it. To revert, go to the Skill Catalog, select the skill, and click Discard changes on the toolbar. If you have already published, you can roll back to the previous version of the Technology Core. For more information, see Revert to a previous version of the Technology Core.

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Version retention

Vantage increments the version number each time you publish the skill. By default, the last three versions of the skill are always stored — all older versions not being used in other skills and transactions are automatically deleted. To change this behavior, turn off the Keep 3 latest and all versions currently in use toggle. When this option is disabled, no skill versions are deleted automatically.

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Edit a skill version

When editing a skill, its editable version appears in the Skill Versions dialog box. A skill can only have one editable version at a time.
Skill Versions dialog with the Edit skill option highlighted in the more options menu
By default, the latest version of the skill is selected for editing. To edit a different version, click the more options icon next to the version number and select Edit skill.

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Copy a skill version

To create a new skill from an existing version instead of a new version of the current skill, select Duplicate skill from the more options menu.
Skill Versions dialog with the Duplicate skill option highlighted
Duplicating a skill copies its latest version by default. To copy a different version, click the copy icon or Duplicate skill next to the version number.

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Import and export skill versions

When importing a skill that already exists in the tenant, you can either import it as a new skill or create a new version of the existing skill. The new version number continues from the highest version that has ever been assigned to that skill, even if some have been deleted.
A skill from another tenant is always imported with its own version number.
When exporting a skill, its latest version is exported by default. To export a different version, you must first duplicate the required version (by clicking either the copy icon or Duplicate skill next to the version number) and export it.

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Skill versions in the Vantage API and online learning

When processing a document via the Vantage API, the latest version of a skill is always used. For a Process skill, you must specify the version of each skill used in Classify and Extract activities. If Online learning is enabled for those activities, the specified versions are what get trained.

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Delete skill versions

You can delete any version of a skill that is not used by other skills or transactions. To delete a skill version, click the delete icon next to the version number.
When you delete a skill, all of its versions are deleted. Deleted versions cannot be restored.
Vantage retains deleted version numbers so they’re never reused. For example, if version 3 (the latest) is deleted, the next published version will be version 4.