While no changelist was disseminated along with the update, users had been complaining that they couldn't log in after installing the Netflix app. Other issues have popped up relating to the Netflix feature that automatically plays the next episode while you're binge watching your favorite television series. For example, let's say you're watching House and you've just finished viewing season two episode "Safe." If you keep the app running, the very next episode from the same season, "All In," will automatically start.
The update should kill these bugs, allowing you to better enjoy viewing television shows, movies and documentaries on your handset. You can install the latest version of Netflix for Windows Phone 8.1 by clicking on this link.
source: Netflix via WMPoweruser