> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Upgrade Advanced Designer Skill Technology Core

> Upgrade an Advanced Designer skill to a newer Technology Core to unlock features like classification by company, deep-learning training, and script rules.

Skills created in Advanced Designer versions before 2.2 can be upgraded to a newer **Technology Core** version to gain access to features that ship in later releases — for example, [Classify By Company](/vantage/documentation/advanced-designer/activities/classify-by-company), neural-network (deep-learning) training, and script rules.

You can keep using and editing pre-2.2 skills without upgrading, but the newer features remain unavailable until you do.

<Warning>
  Upgrading retrains-from-scratch all activities that were trained on the previous Technology Core. Make a copy of every skill you plan to upgrade before you start, so you can fall back if the new training quality isn't acceptable.
</Warning>

## Upgrade the skill

<Steps>
  <Step title="Open the skill in Advanced Designer">
    Select the skill in the **Skill Catalog** on the start page.
  </Step>

  <Step title="Open skill settings">
    Click the settings button next to the skill's name.
  </Step>

  <Step title="Choose the new Technology Core version">
    In the **Technology Core Version** drop-down, select the most recent version, and then click **Apply**.
  </Step>

  <Step title="Retrain the activities">
    On the **Activities** tab, every activity that was trained on the previous Technology Core is now marked as needing retraining. For each marked activity, open the **Activity Editor** and click **Train Activity**.
  </Step>

  <Step title="Verify Extraction Rules activities">
    Newer Technology Core versions ship updated OCR, which can change extraction results. Review every [Extraction Rules activity](/vantage/documentation/advanced-designer/activities/extraction-rules/extraction-rules), check that matching elements still resolve correctly, and adjust search elements as needed.
  </Step>
</Steps>

## Related topics

* [Technology Core versions](/vantage/documentation/technology-core-versions)
* [Manage skill versions in Advanced Designer](/vantage/documentation/advanced-designer/skill-versions)
* [Document skills in Advanced Designer](/vantage/documentation/advanced-designer/document-skills/document-skills)
* [Install and run Advanced Designer](/vantage/documentation/advanced-designer/install-and-run)