Why is EhCacheProvider deprecated?

I am configuring my hibernate project to use a 2nd-level cache provider, so that I can take advantage of query caching.

I added a dependency to ehcache:

   <dependency>
    <groupId>net.sf.ehcache</groupId>
    <artifactId>ehcache-core</artifactId>
    <version>2.2.0</version>
   </dependency>

I think that the provider class I want to use is:

net.sf.ehcache.hibernateEhCacheProvider

When I look at the referenced libraries in eclipse, I see the @Deprecated annotation on EhCacheProvider, and also on SingletonEhCacheProvider. What gives? Is there an up-to-date replacement provider that I can use?

I am using hibernate version 3.4.0.GA, in case it matters.