> Markdown version of [Multiplatform Runtime](https://vaadin.com/docs/latest/tools/mpr). Section index: [llms.txt](https://vaadin.com/docs/latest/tools/llms.txt)
# Multiplatform Runtime Flow
> **Note: Commercial Feature**
>
> Multiplatform Runtime only works with the Extended Maintenance versions of Vaadin 7 and Vaadin 8.
>
> - [Learn More](https://vaadin.com/vaadin-8-extended-maintenance)
>
> - [See Pricing](https://vaadin.com/pricing)
Multiplatform Runtime (MPR) makes it possible to run applications and components written with Vaadin 7/8 inside a Vaadin Flow application.
Issues can be reported on the [public Multiplatform Runtime repository](https://github.com/vaadin/multiplatform-runtime).
## Step-by-Step Guide
Follow the [Step-by-Step Guide](https://vaadin.com/docs/latest/tools/mpr/introduction.md) to configure your project to use MPR and migrate your legacy application to a newer version.
## Configuration & Advanced Topics
- [Legacy Theme in MPR](https://vaadin.com/docs/latest/tools/mpr/configuration/legacy-theme.md)
- [Custom Widget Set and MPR](https://vaadin.com/docs/latest/tools/mpr/configuration/legacy-widgetset.md)
- [Push and MPR](https://vaadin.com/docs/latest/tools/mpr/configuration/push.md)
- [Using Sessions](https://vaadin.com/docs/latest/tools/mpr/configuration/session.md)
- [Using Custom Legacy UIs](https://vaadin.com/docs/latest/tools/mpr/configuration/custom-ui.md) (advanced)
### Using Legacy Components In a Flow Application
[Adding Legacy Components in a Flow Layout](https://vaadin.com/docs/latest/tools/mpr/configuration/adding-legacy-components.md)
### Production Mode
[Setting up production mode](https://vaadin.com/docs/latest/tools/mpr/configuration/production-mode.md)
### Known Limitations
[Limitations of MPR](https://vaadin.com/docs/latest/tools/mpr/configuration/limitations.md)
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