<h2>What's changed</h2> <ul> <li>Claude in Chrome is now generally available</li> <li>Added background agent notifications in <code>claude agents</code> — sessions that need input or finish now fire the <code>Notification</code> hook (<code>agent_needs_input</code> / <code>agent_completed</code>)</li> <li>Added <code>/dataviz</code> skill for chart and dashboard design guidance with a runnable color-palette validator</li> <li>Gateway: added Claude Platform on AWS (anthropicAws) as an upstream provider; model-not-found responses now advance the failover chain</li> <li>Background agents launched