The Altium Designer documentation has been reorganized and restructured to make it more accessible. The documentation is accessed through the new Knowledge Center panel.

The Knowledge Center panel presents help information while you work. It tracks the command, dialog, object, or panel that is currently under the cursor and loads help about it - hover for a second or so for the content to appear. Want to keep the current content that is displayed? Then click the Autoupdate button to disable auto-loading. You can still use F1 to load content with autoupdate disabled.

The Knowledge Center is a portal, from the concise help summary displayed in the top of the panel there are links to PDF based reference and applied documents.

The lower section in the panel has a navigation tree, use this to browse through the PDF-based documentation, and open a document of interest.

The Knowledge Center includes a powerful PDF searching feature, available at the bottom of the panel. Pages that include all words in the search string are returned (except common words such as and, or, etc). The search scope is determined by your current location in the navigation structure.