Browser is a web testing library for Robot Framework that utilizes the Playwright_ tool internally. Browser library 4.5.0 is a new release with support Playwright 1.11.0 and prevents using RF 4.0.2 with Browser library.
Browser library 4.5.0 was released on Wednesday May 12, 2021. Browser supports Python 3.7+, Robot Framework 3.2+ and Node LTS 12 and 14. Expect RF 4.0.2 is not supported.