Nothing to worry about here. In the previous verison of Selenium the JAR files were different. In the latest version, the selenium-java-x.xx.x.jar was renamed to client-combined-x.x.x-nodeps.jar. So, just make sure you import all the JARS onto your IDE and you will be fine. A lof of other JARS have also been renamed and there was no official announcement of the same. So, just add your JARS to your build path and check if it works. It should work IMO.
Simply add this new JAR in your build path Libraries.
Hope this helps!
Check out Java course to learn more about it.