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1# LitElement 3.0
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3A simple base class for creating fast, lightweight web components.
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5[![Build Status](https://github.com/lit/lit/workflows/Tests/badge.svg)](https://github.com/lit/lit/actions?query=workflow%3ATests)
6[![Published on npm](https://img.shields.io/npm/v/lit-element/next)](https://www.npmjs.com/package/lit-element)
7[![Join our Slack](https://img.shields.io/badge/slack-join%20chat-4a154b.svg)](https://www.polymer-project.org/slack-invite)
8[![Mentioned in Awesome Lit](https://awesome.re/mentioned-badge.svg)](https://github.com/web-padawan/awesome-lit)
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10LitElement is the base class that powers the [Lit](https://lit.dev) library for building fast web components. Most users should import `LitElement` from the [`lit`](https://www.npmjs.com/package/lit) package rather than installing and importing from the `lit-element` package directly.
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12## About this release
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14This is a stable release of `lit-element` 3.0.0 (part of the Lit 2.0 release). If upgrading from previous versions of `lit-element`, please see the [Upgrade Guide](https://lit.dev/docs/releases/upgrade/) for a step-by-step guide on upgrading.
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16## Documentation
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18Full documentation is available at [lit.dev](https://lit.dev).
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20## Contributing
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22Please see [CONTRIBUTING.md](./CONTRIBUTING.md).