What is difference between Selenium 3 and Selenium 4?

General Discussions
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What is difference between Selenium 3 and Selenium 4?

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There are lot of changes in Selenium 4 when compare to Selenium 3. Selenium 4 Supports W3C standard Protocol due to which driver and the browser communication follows the standard procedure, does not require encoding and decoding of the API, so communication happens directly.Selenium 4 have much Optimised Seleniu Grid, supports full screen and individual element Screen shot . Here is the Complete Details on difference between Seleniuum 3 and 4

https://www.softwaretestinghelp.com/new-features-in-selenium-4/#:~:text=In%20the%20new%20version%20of,to%20access%20the%20dev%20tool.