# Selenium 3

> Selenium 3 was the implementation of WebDriver without the Selenium RC Code. It has since been replaced with Selenium 4, which implements the W3C WebDriver specification.

URL: https://www.selenium.dev/pt-br/documentation/legacy/selenium_3/

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Section pages:

- [Grid 3](https://www.selenium.dev/pt-br/documentation/legacy/selenium_3/grid_3/index.md): Selenium Grid 3 supported WebDriver without Selenium RC code. Grid 3 was completely rewritten for the new Grid 4.
- [Configurando a sua](https://www.selenium.dev/pt-br/documentation/legacy/selenium_3/grid_setup/index.md): Quick start guide for setting up Grid 3.
- [Componentes](https://www.selenium.dev/pt-br/documentation/legacy/selenium_3/grid_components/index.md): Description of Hub and Nodes for Grid 3.