> For the complete documentation index, see [llms.txt](https://docs.heisenware.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.heisenware.com/release-notes/v90-grouped-periodically.md).

# v90 — Grouped periodically

<div align="left"><figure><img src="/files/AB9zC2NnuK8fr2qIyVl7" alt="" width="285"><figcaption></figcaption></figure></div>

## Features

* **Generic and nested widget grouping**: Added support for generic and fully nested widget grouping using the [dynamic group](/app-builder/build-frontend/widgets/dynamic-group.md) widget.
* **Data binding to groups**: Enabled high-level data binding for widget groups in the [dynamic group](/app-builder/build-frontend/widgets/dynamic-group.md#data-settings-data-bindings) configuration.
* **Introduced the** [**card**](/app-builder/build-frontend/widgets/display-widgets/card.md) **widget**: Display visually grouped components dynamically inside your Apps.
* **Multi-state** [**status lamp**](/app-builder/build-frontend/widgets/display-widgets/status-lamp.md): Improved the status lamp widget to support multiple states and a rectangular shape.
* **Configurable backgrounds for icons**: Improved the icon component in [Text, icons and images](/app-builder/build-frontend/text-icons-and-images.md) to support optional background shapes.
* **Runtime properties**: Added support for configuring multiple new properties at runtime across various [widgets](/app-builder/build-frontend/widgets.md).
* **Database audit logging**: Added database audit logging to the [relational database](/app-builder/build-backend/functions/storage/relational-database.md#audit-logging) connector.
* **Machine simulator option**: Added the machine simulator option to the [Process Simulations](/app-builder/build-backend/functions/extensions/process-simulations.md) extension.
* **AI assistant (beta)**: Released the first experimental version of the AI assistant.
* **Experimental subflows**: Released the first experimental support for [subflows](/app-builder/build-backend/functions/subflows.md).

## Improvements

* **UI interaction and performance**: Optimized user interface interactions and platform performance across the workspace.
* **Codebase health**: Cleaned up and consolidated the internal widget rendering factory.

## Fixes

* **On-premise system restarts**: Fixed system start behaviors to reliably restore [on-premise installations](/tutorials/on-premise-installation.md) after a power cycle.


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