Dia 1.28.0 for macOS

1.28.0 looks the same at first glance—until you dig in a bit more. Every surface you already touch got a pass: tighter spacing, matched colors, synced preferences, and more.

• Sidebar Visual Refresh. The sidebar got a full polish pass: tighter spacing between tabs, cleaner group styling, and neutral-colored tab groups by default for a more minimal feel.
• New Top Band Color Matching. The toolbar now accurately color-matches sticky headers, so the top of your window blends seamlessly with the page beneath it.
• Synced Settings. Your Tabs, Privacy, Profiles, Memory, Shortcuts, and Advanced preferences now sync across devices, so every copy of Dia feels like yours.
• Faster Tab Switching. We removed the legacy compositor recycling system, improving tab switching performance, enabling BFCache, and simplifying future Chromium upgrades.
• Deferred Tool Loading. Tools now load only when the model searches for them, reducing context window size and prompt noise for faster, higher-quality responses — and making room for more tools.
• International Domain Name Support. Dia now decodes punycode in the address bar, command bar, hover cards, and other surfaces so international URLs display correctly.
• Preserve Custom Tab Names in Arc Import. The Arc-to-Dia importer now carries over custom tab names set on pinned tabs or favorites, ensuring a smoother transition for Arc users.
• New Tab Page Query Restoration. Navigating back to a new tab page restores your previous command bar query and selection state, so you can quickly redirect a search without retyping.