The Xbox One version of Borderlands: The Handsome Collection has a 16GB day one patch, Eurogamer has spotted. That breaks down into a 3GB download for Borderlands 2, and 13GB for Borderlands: The Pre-Sequel.

PlayStation 4 owners need to download an 8.3GB day one patch, meanwhile (thanks, Videogamer).

The hefty patch sizes are largely due to The Pre-Sequel's Claptastic Voyage DLC, which was completed too recently to be included on the Handsome Collection disc.

But a long list of bug-fixes and other tweaks have also been included, for both PS4 and Xbox One, developer Gearbox has also detailed.

"For The Handsome Collection, a large day-one update will be available giving access to Claptastic Voyage and Ultimate Vault Hunter Upgrade Pack 2. This update will also address various bugs," spokesperson Marion Dreo said.

"Although the update is large (as it's adding an entire and brand new add-on campaign), we strongly recommend that all players download it before playing The Handsome Collection."

Borderlands: The Handsome Collection lands tomorrow on PS4 and Xbox One, and includes both Borderlands 2, Borderlands: The Pre-Sequel and every DLC pack released to date for both titles.