Native Block Expansions: Adds native Tabs and Audio Playlist blocks to core, reducing reliance on third-party layout plugins.
Per-Device Responsive Control: Viewport breakpoint adjustments can now be tuned natively on individual blocks without write-in custom CSS.
Interactive State Styling: Button blocks support direct editing for hover, focus, and active states natively.
Enhanced Editorial Notes: Feedback tools add support for rich text, @mentions with searchable team member lists, and text-level threaded commenting.
Visual Revisions: Revision history updates to a visual timeline with shareable comparison links.
Client-Side Media Upgrades: Media processing shifts to the browser prior to upload, adding native support for HEIC, AVIF, WebP, and UltraHDR, along with a modal redesign for image crop/rotate/flip.
Block API v3 Enforced: The block editor now defaults strictly inside an isolated iframe, requiring themes/plugins to implement Block API v3 for complete rendering compatibility.
Bridge Fixes from Maintenance Releases (7.0.2)
Security Hardening: Resolves two core vulnerabilities (one critical, one high-severity).
Editor Stability: Fixes blockGap parsing errors with nested CSS variables and sub-menu icon navigation rendering.
Collaboration & Revision Database Patch: Fixes database sync issues that previously impacted high-volume multisite post meta performance during simultaneous editing sessions.