Hello Games has just deployed No Man’s Sky Update 3.80 and we have all the information regarding the update for you. Quite oddly, the developers have not yet published the patch notes themselves. However, we can assume that this update is meant to be the Sentinels Update which was long-awaited.
As of yet, the update seems to be out on Steam and is 7.8 GB in size. This is further testament to the fact that this is a major update. You can find all the relevant information regarding No Man’s Sky Update 3.80: Patch Notes down below.
No Man’s Sky Patch Notes: Update 3.80
We’ve managed to get our hands on the alleged leak patch notes for No Man’s Sky Update 3.80. However, take them with a grain of salt as they might not be official. We will be updating this post with the official notes as soon as they are released. In the meanwhile, here you go:

UPDATE: The update is confirmed to be the Sentinel’s Update. Here’s everything you need to know:
If you’d like to read more game updates and news, check out our Patch Notes section.
Source: Twitter