The latest version of Selenium WebDriver, 2.48 has been released. You can get the direct link for the downloads for the Selenium Server and the Java and C# bindings below. The changelogs for each, as well as other language bindings can be found on the Selenium Downloads page
A new version of WebDriver has been released on September 9th.
Java: Download – Changelog
C#: Download – Changelog
The C# NuGet packages have also been update to version 2.43
For further language bindings, documentations and information you can find the link to the Selenium HQ Download page on the Resources page.