On the 15th of each month the issue documents are updated to give you time to prepare for your marketing for the coming month.
For example: on January 14th you have access to the November, December and January issue documents, and on January 15th you will have access to the December, January and February issue documents.
TIP: Set a reminder in your calendar to download the new files on the 15th of each month to make sure you don't miss an issue!