v4.23October 15, 2026
A Much Bigger MCP Server and an Undo Crash Fix
- NewThe MCP server can edit any project, not just the open one, and apply several edits in one undoable step with batch operations; undo and redo are available to agents, and a catalog tool lists the valid device frames, SVG presets, fonts, languages and screenshot sizes
- NewThe MCP server gained design tools: shadows and text plates, background images, duplicating shapes, rows and columns, moving columns, replacing images, changing every device at once and per-language layouts
- NewThe MCP server can read and update App Store listing metadata, upload to Google Play, and export one continuous image per row
- ImprovedMCP tool arguments are now checked against each tool's schema, so an unknown or wrongly typed argument returns an error instead of being silently ignored
- ImprovedThe App Store Connect upload wizard no longer fills empty What's New fields with placeholder text
- ImprovedMissing translations were filled in for Italian, Russian, Turkish, Ukrainian and Traditional Chinese
- FixedPressing ⌘Z in a text field after using a multi-line text box (such as the per-language translation box) could crash the app
- FixedText in a font that lacks some characters, such as Cyrillic in Familjen Grotesk, no longer gets uneven line spacing
- FixedA change synced from another device through iCloud could be missed when it arrived while the project list was being replaced
- FixedMCP fixes: z-order changes now work on any row, deleting a locked shape no longer reports success, and choosing a device frame also updates the device type and aspect ratio