Option 1

1) Identify article(s) with knowledge block inserted.

2) Remove knowledge block from the article(s) and republish.

3) Republish knowledge block to create a new version.

4) Validate article(s) no longer related to new knowledge block version.

5) Retire knowledge block.

Option 2

1) Identify the article(s) with the knowledge block inserted.

2) Remove the knowledge block from the article(s) and republish.

3) Update the "Valid to" date for the knowledge block.