[Update]: It looks like Fortnite will be making the 'no building' mode a permanent addition!
Whatever madness caused the recent trend in rapidly increasing install sizes now thankfully appears to be subsiding. Not only has Call of Duty finally allowed PC players to cut off at least a little bit of Modern Warfare's 200+ GB file size, but Fortnite has now brought in even greater savings.
As a part of the freshly launched Update 14.40, Fortnite has implemented a variety of optimizations in order to not only reduce the install size on PC, but also improve the loading times. And the savings really are massive as Fortnite's file size has now been reduced by approximately 60GB!
The only downside is that this update is far larger than usual, around 27GB, so you might want to plan around that if you're aiming to play Fortnite tonight. On the positive side, future patches will be significantly smaller due to the new improvements, so it's definitely worth the mild inconvenience.
When it comes to the actual content part of this update, it should come as no surprise that it's mostly a bunch of Halloween themed events and cosmetics! You can read a little bit more about this over at the official website, and for now I'll leave you with the newest teaser trailer. Enjoy!