Capcom have announced an update for Monster Hunter Rise, on its release date (patch version 1.1.1). The update will be about 600 MB, so make sure you have enough space available before downloading it. Also note that you need to update to the latest version to access DLC and play online.
Here are patch notes:
Main Additions / Changes
- Access to the content from the Deluxe Kit, as well as the add-on content from pre-order bonuses and amiibo bonuses.
Bug Fixes / Miscellaneous
- Miscellaneous bug fixes have been made.
Source: Nintendo Everything