This is quite a big update, so I'd recommend reading the changelog:
Custom foods
Three new items have been added to the game:

• Baguette - Restores 7.5 hunger
• Spam - Restores 8 hunger
• Canned Beef - Restores 8 hunger

Custom enchantments
A new enchantment "Void Traversal" has been added to help you and your players navigate in planets with minimal gravity and / or Orbit. It is obtainable only on boots with a level 25+ enchant and has a 10% chance. Read more about it and see how it works on the space wiki.

Hard mode
In space hard mode, players can only survive using oxygen masks and tanks, space suits, or machines. Been inside an area of size 20x20x20 will no longer be automatically pressurised and safe.

Command changes
/Stationtp has been replaced with /station

Multiple items per craft
While it is configurable what and how many items do, some items (Such as wires) will produce multiple outputs per craft. For example, making what would be one wire before, will now produce 8 wires.

Rocket changes
Rockets now have a configurable 10 second countdown, and you must stay inside them for the whole journey for the GUI to open to change planets at the end

Grappling hook
The grappling hook has been added to space to help traverse in microgravity environments. The hook MUST land before it is pulled in to have any effect

Fireproof upgrade
Space suits can now be made fireproof if the module is bought within the modular workbench

Other
Regular Minecraft swords now display correctly
The wiki will be updated accordingly to show all of these changes within the next hour