Why is my Apex updating?

@Koochi-QWait, so you say the download was not HD textures? This message is a bit confusing, though ...

I've found out what it was - a wrath of bug fixes. For some reason for XBox One they decided it would be easier for users to download the entire game file and install it (including all images) rather than patch was what already there. It's nothing to do with the new season.