jangtrinh/design-os-studio released v0.5.0 on October 18, 2026. According to the GitHub release, this edition bundles the component features of the design tool and introduces slots. Slot settings let you define the minimum and maximum number of children, a preferred component, whether to grow a slot when an element is inserted, and the default placeholder when it is empty. Slot content can also be edited directly inside an instance, and design inspection has been strengthened. The source for these changes is the v0.5.0 release.
The repository description presents the project as a native GPU-accelerated interface design tool written in Rust, and as a Figma engine. The changes that can be confirmed for this release are specifically the slot setting items and the editing capability inside instances. You can set the range for the number of children and whether slots grow on insertion, and specify a preferred component and a default empty placeholder, so there are more options for configuring component slots. However, the available release summary does not explain how the preferred component behaves or under which conditions the settings apply.
The available information includes no figures for comparing GPU-accelerated performance, no scope of Figma compatibility, and no license. The statement that design inspection was strengthened does not name the specific checks involved. The repository has 41 stars. So the only evidence available for this edition is limited to the slot feature and the design inspection change, and there is not enough information to judge the tool's performance or compatibility.