Microsoft has released an update for the OneNote app of Windows 8.1 but, there is no updated change log instead, stale change log is available.
Microsoft released a major update for OneNote app of Windows 8.1 couple of weeks ago which included many new features including the support to print your OneNote notes, attach files and PDF insertions.
Now, another update is available in Store but, no change log has been provided. We will assume this update to be a bug squashing and performance update.
The update for OneNote is now available for download from Windows Store and will be installed automatically. Otherwise, you may manually install the update by following the instructions in this article.