Fortnite's 3.1.0 update only dropped just recently, but already it's been superseded by another patch. Update 3.1.1 is out now on PS4, Xbox One, and PC, but it doesn't do a huge amount.
Developer Epic said on Twitter that the patch is designed to "fix client crashes some players are experiencing." Nothing else is included in the patch since all the new content--such as a new point of interest and a new gun--was included in the previous update.
The new point of interest is called Lucky Landing, located on the southern edge of the island. Elsewhere the drop rates of various guns were adjusted: you're 20% less likely to find a common burst assault rifle, for example, but 150% more likely to find a rare one than before. Some loot drops were tweaked too; fewer chests will appear in Snobby Shores, Tilted Towers, and Industrial Plot from now on. The patch was supposed to see the introduction of jetpacks, but those have been delayed to an unknown date due to a design issue that developer Epic discovered very late on.
Following last week's 3.0.0 update, Season 3 of Fortnite: Battle Royale is now underway, giving players a new Battle Pass and rewards to unlock. This season's Battle Pass features 30 additional tiers--you can see all of the new Battle Royale rewards there are to unlock in our gallery. Players can also take part in Fortnite: Battle Royale's latest limited-time mode, Solid Gold. Finally, you can currently grab some free Fortnite items with Twitch Prime.