What's New in Selenium 4.0

on YouTube ↗42m

" summary

Selenium 4 rewrites the Selenium Server/Grid architecture replacing the single hub with four node types (router, distributor, session-map, nodes) to eliminate the hub bottleneck and allow sessions to survive failures. The prototype can run components in-process or distributed, adds request tracing using OpenTracing/OpenCensus, and plans backward registration so Grid‑3 nodes and cloud providers continue to work during migration.

AI-written summary · about

" chapters (9)

1. 0:00Selenium 4 intro
2. 1:50What is Selenium
3. 6:48Selenium Grid history
4. 15:23Grid 3 issues
5. 18:41Grid 4 fixes
6. 20:28Grid 4 architecture
7. 27:00New architecture benefits
8. 33:08Debugging Grid 4
9. 37:06Current state and roadmap

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