DEVONthink comes with built-in RSS capabilities that enable you to add RSS feeds to your database and have DEVONthink update them automatically. Use these preferences to define how often DEVONthink checks for new articles, whether to skip duplicates when updating feeds, when to remove older articles, and which CSS style sheet to use for displaying the articles.

Updating Feeds:

- Check for updates: Set how often you want DEVONthink to refresh your feeds. Choose a time-based option from 5 minutes to hourly to once a day, when opening or after synchronizing a specific database, or checking manually.
- Convert categories and hashtags to tags: Some RSS articles have tag metadata to help people more easily navigate the publisher's site. Check this option to convert these to DEVONthink tags. Note this can add a great number of tags to your database.
- Skip identically named articles: The same article can be delivered when using multiple RSS feeds from one site. Enable this option to avoid downloading duplicate articles.
- Show chat summary in notification center: Display a AI-generated summary when new articles arrives.

Remove Articles:

- Remove articles: Set how often older articles are removed from the feed. Check Also unread articles to remove them, even if they're unread.
- Remove immediately instead of moving to the trash: Immediately delete the RSS articles from your database.
- Also unread articles: Remove all articles at the specified interval whether they've been read or not.

Note: Feeds or articles locked via Data > Mark > as Locked will not be removed.

Feed Format:

- Feed Format: Choose a file format for the downloaded articles. (RSS articles are presented as HTML files, by default.)
- Use clutter-free layout: Remove extraneous items from web archive and single-page PDFs.

Feed Style Sheet: Choose a custom or built-in stylesheet for use with HTML articles (Feed Format: Automatic) articles. Store your own RSS stylesheets in `~/Library/Application Support/DEVONthink/StyleSheets`.