Hello Games has released detailed patch notes about the Foundation Update

After 100 days Sean Murray has finally made contact and he has come to announce what will be involved in the 1.1 foundation update for No Mans Sky. When the game launched, lots of people were disappointed at the lack of content and this update may change that. Is it too late though? Let us know your thoughts.
Foundation Update Website Link

New Game Modes
No Man’s Sky will have three game modes rather than the original one when the Foundation Update launches. Normal mode will be the No Man’s Sky difficulty that everyone remembers. Creative mode will allow us to explore the universe with no limitations and be able to build huge bases. Finally, we have survival mode. This game mode is for those of us who want a real challenge (and to die a lot).
Death Quotes: 

Base Building
Base building has been a slightly controversial topic in the community due to the fact that they are asking you to build stationary bases in a game that you are meant to travel in. None the less, here are more details about what will be coming regarding base building.

• Claim your home planet by finding an uninhabited base and creating your own, fully bespoke outpost.
• Construct your homestead for shelter, using modular structures and decorations, replicated from resources gathered while exploring
• Recruit alien lifeforms to help research new technology. Farming, engineer, weapons and science specialists are hirable from Space Stations
• Use Terminus Teleporters in Space Stations to teleport to and from your base at will
• Expand your base with storage containers to stockpile precious resources and rare products
• Find an even more beautiful location and you can simply dismantle your previous homestead to refund all of the spent resources

Farming and Making Camp

• Cultivate biome dependent crops outdoors, or inside your base or Freighter using Hydroponic Labs
• Plants grow over time and offer a steady supply of resources to be harvested
• Hire a farming specialist to research and grow ten new plant types, and discover new resource elements

• Players can now build essential equipment in the field on-planet
• Place save points anywhere in the world, crucial for Survival mode
• Automated Harvesters gather resources from mineral deposits in your absence
• Waypoints can be placed and colour-coded to allow explorers to return to discoveries
• Communications Terminals allow explorers to leave sub-space messages for others to find
• Discover nearby mineral deposits, uninhabited bases or suit upgrades with the use of a Signal Scanner

Freighters

• Purchase huge interstellar Freighters at great expense, and then summon them from anywhere in the galaxy
• Resources can be teleported to your Freighter while on-planet, ideal for stockpiling goods for trading
• Customise the inside of your Freighter within the Base Building section
• Create extended cargo holds to expand your vessel’s capacity, and grow crops of rare resources on board
• Transport your Freighter and its cargo to different, more economically favourable systems to maximise your earnings
• Use the new recruitment system to crew your Freighter with Engineer, Farmer, Weapons and Science specialists to help research new technologies

New Resources & Technology

• Discover new biome and star specific resource types as you explore the universe
• Craft the new Advanced Mining Laser and Hazmat gauntlets through base building and use them to gather rare resources

• Research and discover dozens of new products, building components and technologies

User Interface Update

• The user interface has been improved to accommodate the stress of Survival Mode where a small inconvenience can be the difference between life and death.
• The intelligent Quick Access Menu streamlines Inventory access.

• Products can be stacked up to five times per inventory slot, resulting in increased starship, base container and freighter storage capacity
• New arrow indicators have been added to emphasise shield and life support changes more clearly, to aid decision making
• Scanned Primary resource elements have been given specific symbols to allow for easier differentiation
• View your current objective at any time quickly by pressing left on the D-Pad, or H on your keyboard
• The UI has been visually improved by removing colour tint and other artifacts
• Early warning indicators have been added to starship cockpits to notify explorers of inbound Pirate activity
• Red cockpit warnings indicate more clearly when Pulse Drive is unavailable

 
There are more details on the website but from the things we have seen, I am excited as to what else might come.