Changed

App scaffolds now declare compatible Core (^0.4.5) and SDK (^0.4.2) ranges. The frontend SDK validator accepts stable caret ranges while retaining exact pins. Existing App tags remain immutable: adopting range declarations requires a new App release and Core lock update once, not on every compatible Core patch. PHP and frontend SDK requirements must agree.
Agent management now consolidates conversations, artifacts, personal preferences, and organization settings under the Agent workspace, with saved navigation routes migrated to the new locations.
Agent status is visible in the Shell footer while responses, uploads, file processing, and analysis are in progress.
Shell navigation no longer permits horizontal scrolling in narrow side menus.
Reopening the Agent panel or a completed-task notification preserves the selected conversation. Explicit new-conversation actions still start a fresh draft.

Upgrade required

Core 0.4.5 uses App SDK 0.4.2. Run the normal tenant migrations to move saved Agent navigation routes. No configuration, public SDK API, or Agent contract change is required.