Microsoft has started the roll out of the first major Windows 10 update, labelled Cumulative Update KB3081424 to end users. The update is a huge one and weighs in at 325MB and updates hundreds of files in the operating system which likely include bug fixes and changes.
Microsoft has not shared a detailed change log for this update but the below is mentioned in the knowledge base entry:
This update includes non–security-related changes to enhance the functionality of Windows 10 through new features and improvements.
Windows 10 updates are cumulative. Therefore, this package contains all previously-released fixes (see KB 3074683). If you have installed previous updates, only the new fixes that are contained in this package will be downloaded and installed to your computer.
So, even though the patch itself is 325MB in size, users would only get the parts of it which are not already installed on their computer via previous updates.
It would have been nice of Microsoft to share a detailed log of what has been updated or fixed in this update. So far, users are noticing that lock screen log in sounds are now working, issues with Cortana for UK users have been resolved while at the same time, many users are still complaining about pending issues which are still happening despite the update. Microsoft has marked the KB article as a ‘Fast Publish’ so it seems that they might share a more detailed change log soon. Till then, we will keep you notified on any major and minor changes in Windows 10 after this update.