Allows you to toggle peaceful mode at will, on every surface (Space Age planets included), while keeping in-game achievements enabled.
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
Changes to enemies or entirely new enemies to deal with.
Edit the info.json to read "factorio_version": "1.1", in the zip file.
Thanks for the heads-up!
I've submitted a new version.