Sorry for the late answer: I was in a meeting.
About 2542 ("Streaming Service") and 34001 ("Extended Transparent End-to-End Packet Switched Streaming
 Service"), you're completely right: they look the same. I take the action to check with my colleagues
 supporting SA1 and SA4 and probably delete one of them. Thanks for your remark.
For UID 1571, "Security Enhancements", it's still there: it's "just" an error in the Unique ID (it 
states "0" instead of 1571). This will be corrected in the next version, as well as some other ones.

Paolo:
Alain et alii,
the new WI "Extended Transparent End-to-End Packet Switched Streaming Service" ( PSS-E) was approved at SA#12 in Stockholm for Release 5 (see attachment), and replaces the "Streaming Service" which was a feature for Release 4.
The correct action is to delete the "Streaming Service" from the work plan.