Hi, You can download the release candidate from http://people.apache.org/~shinichiro/apache-manifoldcf-0.5-incubating-RC2/ and there is also a tag in svn under https://svn.apache.org/repos/asf/incubator/lcf/tags.
RC2 fixed the following issues: CONNECTORS-437: Change the ant jar distribution model so that no binary files are included in the source distribution. All of them are now downloaded via the ant "download-dependencies" target. I've already checked signatures. Thank you, Shinichiro Abe