The legacy N2_UBMS feed is slated for retirement at end of October. There are a number of differences between this and MRN_STORY. 1. Data models 2. APIs 3. Story construction. In N2_UBMS, client must request each story body segment. In MRN_STORY, the story body segments are broadcast over the MRN_STORY RIC. 3a. Size of story body segments. The MRN_STORY segments are much larger, leading to fewer segments and reduced risk. 4. Permissioning. Clients must sign for the MRN_STORY feed to be permissioned to receive any content.