Streamlit Shadcn UI 1.0.0

Version 1.0 is a complete migration to Streamlit Components V2 and the first V2-only release of Streamlit Shadcn UI.

Highlights

Rebuilt all 35 public components with checked-in shadcn/ui source backed by Base UI
Migrated to Streamlit Components V2, React 19, and Tailwind CSS 4
Removed component iframes entirely
Added isolated Shadow DOM styling with native light and dark theme support
Fixed clipping and stacking for Select, Dropdown Menu, Popover, Hover Card, Date Picker, and Alert Dialog using the browser top layer
Added typed Python return values and documented callbacks
Made key optional for ordinary component calls
Added a new documentation homepage, Getting Started guide, Playground, and complete V2 API examples

Version 1.0 no longer ships the V1 iframe implementation or the streamlit_shadcn_ui.v1 namespace.

Notable API changes include:

button(text=...) → button(label=...)
Grouped V1 checkboxes → composition of scalar checkbox() calls
CamelCase arguments such as totalPages and maxHeight → snake_case
with ui.card(...) and experimental ui.element() trees have been removed
Components now return public values directly instead of exposing internal transport dictionaries through st.session_state

Applications that cannot migrate yet should remain on streamlit-shadcn-ui==0.1.19.

pip install streamlit-shadcn-ui==1.0.0