Hi Jwebb, items that come shortly after a release are not "pre" release items. They are "post" release items and form part of the existing release. There are times, such as this release, where items such as the Christmas decorations, had to be delayed, due to the Thanksgiving items, and also last month, when the Thanksgiving items themselves were delayed, due to Halloween items.

A "release" is not just for one day. It covers the entire period of the weeks that follow. Any items or changes in that time, form part of the existing release and as such , they are "post" release updates. Post release updates are necessary, and happen every month, in some shape or form. I hope this helps you to understand a little better. Have a great day!