I noticed that UCONNECT_8.4AN_RA4_17.11.07_MY17_RU was updated to a REV C. I wish they published change logs...
Not that I disagree that it would be nice to see change logs, but note that your image says the Service Bulletin was updated to Rev. C, not the software build. My guess is that they may have been revising the service bulletin either to change from "no fix available" to "use this version of software", or they may have simply been revising which software to load to try to address issues by updating the bulletin to point to the latest version..
- 2017 Pacifica Touring-L Plus - Jazz Blue, Advanced SafetyTec, Uconnect 8.4N, KeySense
- Ordered 5/31/16, Current status: KZL as of 6/28/16, Arrived at dealer 7/6/16, Purchased 7/11/16