WordPress 6.5 — Font Library and Interactivity API

## Fonts and Interactivity WordPress 6.5 "Regina" delivers two features that address long-standing gaps: managing fonts and making blocks interactive without heavy JavaScript. ### Font Library Typography has always been one of WordPress's weak points. To use custom fonts, you needed a plugin, manual CSS, or theme support. The Font Library changes that. From the Site Editor, you can now browse, install, and activate fonts. Upload your own font files or install from Google Fonts — all through a visual interface. Fonts are stored in wp-content and referenced in theme.json, so they persist through theme changes. For designers, this is liberating. Choose the exact typography for a project without touching code or installing plugins. ### Interactivity API The Interactivity API is more technical but equally important. It provides a standard, declarative way to add frontend interactivity to blocks: lightboxes, search filters, tabs, accordions, dynamic counters. Before the Interactivity API, making a block interactive meant loading React, Vue, or custom JavaScript. The API uses a lightweight declarative approach that works with server-rendered HTML. The result: interactive blocks that load fast and work without client-side frameworks. ### Plugin Dependencies Plugins can now declare that they require other plugins to function. If Plugin A needs Plugin B, WordPress shows this relationship in the admin and prevents activation issues. This has been a source of user confusion for years. ### Template and Pattern Revisions The Site Editor now tracks revisions for templates and patterns, not just posts. Made a mistake editing your header template? Restore the previous version. This safety net was missing since Full Site Editing launched. ### The Maturity Curve WordPress 6.5 marks the point where the block editor ecosystem feels complete. You can manage fonts, add interactivity, declare dependencies, and track revisions — all natively. The platform is mature enough that the conversation shifts from "what's missing" to "what's possible."