How does Salesforce Knowledge work and what is the article lifecycle?

Salesforce Knowledge is a knowledge base for storing articles that agents and customers can use to resolve issues. The article lifecycle is: Draft (article created, visible only to authors) → In Review (submitted for approval/review by editors) → Published (visible to designated audiences). Articles can be versioned — when a published article is edited, a new draft version is created while the published version remains live until the new version is published. Knowledge supports Data Categories for classification and access control, article voting for quality tracking, and the Knowledge Sidebar in the Service Console for contextual article suggestions.