Missing Functionality in RTC-Client-p2Repo-4.0.3

After upgrading to 4.0.3 RTC we found an issue with the SVN plugin missing from the RTC-Eclipse_Client 4.0.3. We had our Eclipse users revert to the RTC-Client-p2Repo install to resolve this issue. We are seeing missing functionality in the p2Repo client that is in the RTc-Eclipse_Client 4.0.3

unable to link to multiple work items when checking in source code
Unable to remove a comment from a work item.

We have verified these features are in the 4.0.3 client.

We are now concerned additional functionality is missing. Does anyone have any information on the comparison of these two client installations regarding functionality?

thanks