Adding additional technology to the base game alongside with new items, entities and crafting recipes.
Mods introducing new content into the game.
New ways to deal with enemies, be it attack or defense.
Things related to oil and other fluids.
Furnaces, assembling machines, production chains.
Changes to power production and distribution.
Elecrtomagnetic plant 3 tech has as reward the Elecrtomagnetic plant 2
Thank you for letting me know.
Fixed in 1.4.3