Update java changelog prior to beta 4
+v4.0.0-beta-4
+=============
+
+* Rework how the `Distributor` creates sessions to be more
+ spec-compliant.
+* Rework internal structure of the New Session Queue.
+* `DriverCommandExecutor` uses its own `ExecutorService` (#9430)
+* Add proxy support to NettyClient (#9434)
+* Handle bad gateway response from the server when starting a new
+ session (#9444)
+* Expose session request metadata from the new session payload
+* Implement getDomAttribute method in EventFiringWebDriver (#9394)
+
v4.0.0-beta-3
=============
