• Live config: Changes to the project config (observablehq.config.js) are now applied immediately on reload or navigation during preview. Parsing and caching has been optimized, and the preview socket now reconnects automatically after server restarts.

• External links: External links now include target="_blank" and rel="noopener noreferrer" attributes by default, enhancing privacy by preventing referer sharing to external sites. This can be overridden by setting the target or rel attributes explicitly.

• FileAttachment enhancement: Introduced the FileAttachment.href property for easier file URL access as an alternative to the async FileAttachment.url() method.

See release notes on GitHub for more details.