Selenium 4.50.0

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Selenium·Sep 30, 2026, 10:16 PMDeprecationMay break your integrationAI-assisted summary

Summary

Added new BiDi commands and options (e.g., screenshot image size, DestinationFolder for screencast, Emulation.SetTextLayoutModeOverride, extension install/uninstall, relative locators from elements/shadow roots).
Removed deprecated APIs such as old HttpClient methods and Firefox profile/extension methods, while restoring some deprecated fields for compatibility.
Implemented numerous bug fixes and stability improvements across bindings (response parsing, listener cleanup, flaky test fixes, clearer error messages, headless flag handling).