This release is the FINAL 2.X release.
A big difference for maven users with 2.53 compared to previous
versions is that HtmlUnitDriver is now in a separate package and the
version mirrors HtmlUnit's version number.
So, to use the latest HtmlUnitDriver you need to additionally add this
to your maven dependencies:
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-htmlunit-driver</artifactId>
<version>2.20</version>
</dependency>
(note that 2.20.0 is 'old', we might be changing this package
structure in the future...)
The next set of releases will be 3.0-betaX (followed by 3.0-rcX then
a 3.0.0 release).
3.X is not going to contain any Selenium RC classes.
If you only use WebDriver, you should have no issues upgrading to 3.X.
If you still use RC or WebDriverBackedSelenium, then you can include
the 2.53.0 'leg-rc' jar -
http://repo1.maven.org/maven2/org/seleniumhq/selenium/selenium-leg-rc/2.53.0/selenium-leg-rc-2.53.0.jar
maven users will add this dependency:
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-leg-rc</artifactId>
<version>2.53.0</version>
</dependency>